[nForce] System Not Booting From CD to install O/S

For some reason my computer will startup i have programmed the bios to boot from cd, but when it restarts the screen goes blank and the system crahes.
AMD Sempron 2500
K7n2 Delta 2 Platinum Motherboard
1GB DDR Ram
ATI Saphirre 256MB Graphics Card
2 Maxtor HDD 1x20GB 1x40GB
LG DVD rewriter
Atapi CDRW
Nforce Bios
Any other info required just ask
please dr stu help

Quote
please dr stu help
i already tried to help by merging another new topic you started into the first one with unanswered questions and suggestions, so you went ahead and started another topic
please stick with your original topic, answer questions, and best of all do as Richard says and make a sig with your hardware info, so everyone knows what you have and doesn't have to keep asking

Similar Messages

Need to erase hard drive and reinstall system on iMac but have misplaced original install disks. Tried to use a my copy of Snow lepord 10.6 from my Mac pro but will not boot. Can original install disks be replaced. Thanks

Need to erase hard drive and reinstall system on iMac but have misplaced original install disks. Tried to use a my copy of Snow lepord 10.6 from my Mac Pro but will not boot. Can original install disks be replaced. Thanks

Yes the original Install Discs can be replaced for a nominal fee. Call AppleCare, you will need a credit card and the serial number of the machine. You can use the AppleCare Contact Info for the phone number on your part of the planet.

RE: HP XP Media Center 2005 Ed will not boot from HP System Restore CD's

RE: HP XP Media Center 2005 Ed will not boot from HP System Restore CD's.
The following instructions about the "Code Purple" error FAILED. Error is still present.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
***PLAIN ENGLISH QUICK AND EASY FIX FOR ALL SYSTEMS****
***Windows 7 code purple or Windows Vista code purple***
With the code purple error on the screen, press shift+f10 (the shift key and the F10 key (at the top of the keyboard) at the same time) to open a little screen called a command prompt. (So, you get a little black screen with white text that says something about your Windows verison first and a little ways down you'll see "C:\>".   It's all ready for you to start typing.)
Type the following line, just as you see it here...
notepad C:\hp\bin\checkdmi\checkdmi.cmd
so it will look like this
C:\>notepad C:\hp\bin\checkdmi\checkdmi.cmd
Press Enter.
You will see the text for the file listed in a window using a simple text editor.
Go to the beginning of the text. Press enter to make a space. Type this...
goto cleanup
So, whatever comes after, the first line looks like this...
goto cleanup
Save the file and exit notepad and restart your PC. You are good to go.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
RESULT: Same error and problem.
So, NOW THE SCENARIO IS THIS...[ And A CHALLANGE TO ALL HP Software EXPERTS]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1. The PC will not boot the System Restore CD's
2. The Original OS install and [HP_RECOVERY] disk sector has been severely damaged by
all of the following:
   A. Massive Virus Infections as shown by Kaspersky Virus Scan and cleaned up.
   B. The user had originally updated the pc to Vista Business Express Upgrade
       (Supplied by HP with the original purchase and warranty).
        (Prior to the upgrade, Media Center was working correctly.)
   C. The original OS product key(XP Media Center Ed. 2005) has been changed by the Vista Business Express upgrade.
   D. The destructve recovery done by PC-Doctor has done user file damage(s).
   E. All software, and possibly hardware could be corrupted & damaged by viruses,
   incomplete recovery, and the unknown failures and conditions.
To sum up, the system is locked in an unknown state, waiting for expert help.
(I can allow and manage to let someone diagnose, repair remotely using another OS i.e.Linux Opensuse 12.1, or XP Home ed if needed.)
SO IF YOU THINK YOU ARE UP TO THIS CHALLANGE, SEND MESSAGES TO DAVHPForum anytime. Thanks in advance!
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Hello @DAVHPForum,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how you are not able to boot your computer using the HP system restore CDs, and I would be happy to assist you in this matter!
If you are not able to recover your system by following the steps in this document, please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

Reset Password - System does not boot from DVD

My System: Macbook Pro - 2Ghz Intel Core Duo - OS X - 10.6.8
Hi everyone,
i forgot my password. So i want to boot from install DVD to reset the password. Unfortunately my macbook pro does not boot from DVD (10.6.3).
I press c all the time...but sometimes the macbook pro throws the DVD out...and sometimes nothing happens.
The DVD drive is working fine...
Any other idea?
Thanks in advance.
Fabian

So when you boot holding option it shows a padlock with a password field? Is that correct?
In that case we're talking about the firmware password, which you can't reset via the install disk. There is only one way to do this, I'm not certain if one is allowed to divulge that information publicly - might want to try googling "reset firmware password"

Mac Pro will not boot from Leopard or any CD or DVD install disk

My Mac Pro wont boot from my Leopard install DVD. It never gets by the gray screen, then after several minutes the screen scrolls down black and says I need to restart my computer. I tried my Tiger install disk and it still wont boot from that DVD. Held down the "C", used "option" and selected DVD and still no boot. I can boot from one HD that has Leopard 10.5.8, but another HD with Snow Leopard 10.6.3 will not boot. The HD with Snow Leopard shows up as "EFI Boot" not the name I gave that HD when I startup using the "option" key. Any help would be appreciated.

At first I was just going to say it sounds like you have a bad optical drive, but then you had to go and say that it also won't boot from a HDD.
That just makes things a whole lot worse.
Start by removing the side cover and checking the RAM to see if any of the LEDs are lit up indicating bad RAM. Usually if there's any bad RAM found, it will just automatically disable that stick, but maybe yours isn't for some reason.
Look for any other LEDs that may be lit. Generally speaking, the only time you should see an LED (outside of the power LED) lit consistently is if there's a problem.
You should also see if you can get Apple Hardware Test to run, which may or may not find some problem.
But sorry to say, it's sounding very suspiciously like a bad logic board.
One other thing to try, is putting the SL drive into a different slot. So if you were putting it in slot 2, try slot 3 or 4. If you just have a bad SATA port, you might be able to just work around that until you get a new system.
If by chance this system is still under warranty, do not walk, do not pass go, do not collect $200, RUN to the nearest AASP or Apple store to make it THEIR problem to sort out.

Wiped macbook pro will not boot from install DVD

I recently purchased an older MacBook Pro that came with the OS system wiped but it did have the original Install DVDs. The computer will not boot from the DVD. I have booted holding down the C key and nothing happens. I have booted holding down the Option key and it shows the Install DVD and I select this and nothing happens.
How do I get it to open up the Utilities from the DVD to install the operating system?

It could be a problem with the optical drive, but also may be due to the DVD's being for a different model.
Exactly which MBP do you have, and what serial numbers are on the discs ?.

Macbook Pro will not load OS and will not boot from Install Disk

When I try to turn on my macbook pro it goes to the gray logo screen with the spinning gear however it does not progress from there and then after several minutes it proceeds to restart itself and the same process repeats itself. I have tried to boot into single user mode with success and have run /sbin/fsck -fy and that has returned that the volume appears to be ok. However, when I hit reboot it returns to the same process of the gray screen and spinning gear to black screen which repeats. When I boot into verbose mode it progresses to AppleYukon2: RxRingSize <= 1024, TxRingSize 256, RXMAXLE 1024, TXMAXLE 768, STMAXLE 3328 then it stalls for several minutes and then it shows continuing
synchronizing disks... Killing processes
then it says some other stuff to fast to read.
When I try to boot from the install disk it will not boot from holding the c key it goes through the same aforementioned cycle. When using option to boot I can see the Disk then when I select it the cycle happens again.
Also I have XP installed and I am able to boot into that successfully. Any help would be greatly appreciated.
Not sure if I left anything out
-bryce

Welcome to Apple Discussions.
Do you have multiple Accounts defined on that system? The last time you successfully were running, did you run from the Account with Administrator privileges?
Do you have another computer from which you could boot and connect the Macbook Pro in Target Disk Mode to take a look at the drive from your working machine? Perhaps you can run Disk Utility from the working machine and point to the hard disk on the failing Macbook Pro.
Message was edited by: Rick Lang

Not booting from the install CD

I have put in a new HD, and the computer will not read the CD when holding the C key. I have tried option C, and just option but the CD dose not show up. I have tried my G5 desktop install CD. In the case of the MacBook CD it tries to read but then ejects the disk. The desktop CD spins up, but never loads.
I have formatted the disk with no change.
I have removed the HD, and it dose not boot from the CD.

This sounds like a hardware issue and needs to be looked at. It should have booted to the optical drive by holding down the C key with the correct DVD inserted. The correct DVD meaning a system disc that came with that MacBook or a newer OS disk. I'm also thinking that since the machine has nothing to boot to on the HD, it will automatically try the optical drive for an OS.
Have you tried booting to your old/previous HD? -GDF

Will Not Boot from Install Disc & 4SNS/1/40000000: TG0D - Thermal Sensor?

*Will Not Boot from Install Disc*
I used the "option key" approach with the gray start up disk. At first it ejected the start up disk. Then I nudged the disk back in the machine and it showed on the screen as an option. I clicked on the start up disk image and it finally loaded.
But, it won't accept the start up disk when holding down the "C" key at restart.
*4SNS/1/40000000: TG0D*
I did an Apple Hardware Test and received the following diagnostic:
Version: 3A121
Test Suite: Extended Test
Loop Count: 2
Result: Failed
Failure code: 4SNS/1/40000000: TG0D
*Thermal Sensor*
A search for the failure code 4SNS/1/40000000: TG0D brought up an Apple Discussion topic entry stating: That error code indicates a problem with a thermal sensor. It could be not working or possibly not connected. You will need to take it to Apple for repair.
Would a thermal sensor have anything to do with it not starting up when holding down the "C" key at restart? What are thermal sensor problem symptoms?
*User File Folder Opened Up*
The machine also starts up with my user file folder opened up rather than with a blank screen as it normally should
I completed a DiskWarrior rebuild on the disk and verify disk shows it is fine.
Any suggestions on what to do next with these issues?

The answer was in your post: "You will need to take it to Apple for repair."

I have a new macbook pro 2,6 Ghz i7, 8GB 1600Mhz internal ram. He will not boot from an external disk with operating system Snow Leopard

I have a new macbook pro 2,6Ghz i7, 8GB 1600 Mhz internal ram, but he will not boot from an external disk with operating system Snow Leopard.

These Macs shipped with 10.7, and will run nothing older than that:
MacBook Pro
Date introduced
Original Mac OS X included
(see Tips 1 and 3)
Later Mac OS X included
(see Tip 1)
Mac OS X Build(s)
(see Tip 2)
MacBook Pro (Retina, Mid 2012)
Jun 2012
10.7.4
11E2068
MacBook Pro (15-inch, Mid 2012)
Jun 2012
10.7.4
11E2617
MacBook Pro (13-inch, Mid 2012)
Jun 2012
10.7.4
11E2617
MacBook Pro (13-inch, Late 2011)
Oct 2011
10.7.2
10.7.3
11C74, 11C2002, 11D2001
MacBook Pro (15-inch, Late 2011)
Oct 2011
10.7.2
10.7.3
11C74, 11C2002, 11D2001
MacBook Pro (17-inch, Late 2011)
Oct 2011
10.7.2
10.7.3
11C74, 11C2002, 11D2001

Not booting from 10.4.8 volumes after upgrade from 10.4.7

I'm sorry to report that my aged G4 450 MHz AGP with 4 internal Hard disk drives no longer boots from any of the 2 volumes upgraded to Mac OS X 10.4.8 as soon as it was started from another volume!
All was working fine as long as 10.4.7 was installed on the 2 232 GB disks connected to the SIIG ATA133 controller. I could boot from any OS on any of the 4 disks, 5 partitions:
internal ATA66 bus:
18 GB disk, 2 partitions: 'IBM_18GB' with OS 9.2.2 and TechTool Pro's 'eDrive' with 10.4.7
71 GB disk, 1 partition 'IBM_71GB' with OS 9.2.2
PCI SIIG ATA133 controller:
232 GB disk, one partition 'I1232GB' with 10.4.7, now upgraded to 10.4.8 and no longer bootable
232 GB disk, one partition 'I2232GB' with 10.4.7, now upgraded to 10.4.8 and no longer bootable
Now I can only boot from the Mac OS 9.2.2 or the eDrive 10.4.7 partitions.
What I did so far: 'I2232GB' was my main OS X startup volume, 'I1232GB' contains a clone of it, plus additional folders like software base and backups.
After upgrading 'I2232GB' to Mac OS X 10.4.8 through Software Update and repairing permissions all was OK as long as the Mac was just shut down or re-started: it always booted up in Mac OS X 10.4.8 from 'I2232GB' without any problems.
The next day I booted from 'I1232GB' to do the same there.
Afterwards I could no longer boot in Mac OS X 10.4.8 from 'I2232GB' nor in in Mac OS X 10.4.8 from 'I1232GB': it just gets to the grey screen with the Apple logo, but the round circle underneath indicating some progress never appears. I left it there for hours: it just hangs.
With the Option key held at startup I could boot from the other partitions with Mac OS 9.2.2 or the eDrive with 10.4.7. None of their Startup Control Panels was able to get me back to 10.2.8!
So I booted from the TechTool Pro 4.5.1 DVD to Optimize both volumes, 'I1232GB' & 'I2232GB', always Files only.
Then I booted from the DiskWorrior 3.0.3 CD to rebuild the directories of both volumes, 'I1232GB' & 'I2232GB'.
Still I can not boot from either 'I1232GB' or 'I2232GB' in Mac OS X 10.2.8!
Downloaded the Mac OS X 10.2.8 Compo Update (for PPC) and installed it onto both 'I1232GB' & 'I2232GB' while booted from the eDrive which I keep on Mac OS X 10.4.7 - no luck either, still I can not boot from either 'I1232GB' or 'I2232GB' in Mac OS X 10.2.8!
Then I backed up the users folder from 'I2232GB' onto 'I1232GB', booted from Mac OS 9.2.2 and used Intech's Hard Disk Speedtools 3.6 to format 'I2232GB', afterwards initialized it with Alsoft's Plus Maximizer Extension for a Block Size of 512 Bytes.
Installed Mac OS X 10.4 from DVD, as well as iLive '06 and upgraded everything to the latest releases with Software Update. All was working fine with all the required reboots until another startup volume was chosen: afterwards again I can no longer boot back into Mac OS X 10.2.8 on the fresch installed 'I2232GB'!
Any help would be appreciated.
Here is some information found by System Profiler from Mac OS X 10.4.7, eDrive, let me know if you need more:
Hardware Overview:
Machine Name: Power Mac G4 (AGP graphics)
Machine Model: PowerMac3,1
CPU Type: PowerPC G4 (2.8)
Number Of CPUs: 1
CPU Speed: 450 MHz
L2 Cache (per CPU): 1 MB
Memory: 2 GB
Bus Speed: 100 MHz
Boot ROM Version: 4.2.8f1
Serial Number: XA00715VHSF
Sales Order Number: M7628LL/A
ATA Bus:
IBM-DPTA-372050:
Capacity: 19.12 GB
Model: IBM-DPTA-372050
Volumes:
IBM_18GB:
Capacity: 13.12 GB
Available: 6.96 GB
eDrive:
Capacity: 6 GB
Available: 3.03 GB
IBM-DTLA-307075:
Capacity: 71.59 GB
Model: IBM-DTLA-307075
Volumes:
IBM_71GB:
Capacity: 71.59 GB
Available: 39.65 GB
ATA Bus:
PIONEER DVD-RW DVR-107D:
Model: PIONEER DVD-RW DVR-107D
Firmware Revision: 1.21
Interconnect: ATAPI
Burn Support: Yes (Apple Shipped/Supported)
Cache: 2000 KB
IOMEGA ZIP 100 ATAPI:
Model: IOMEGA ZIP 100 ATAPI
ACARD,6880M:
Name: ACARD,6880M
Type: scsi
Bus: PCI
Slot: SLOT-C
Vendor ID: 0x1191
Device ID: 0x0009
Subsystem Vendor ID: 0x1191
Subsystem ID: 0x0009
Revision ID: 0x0003
SCSI Parallel Domain 65536:
Initiator Identifier: 7
ATA HDT722525DLAT80:
Capacity: 232.89 GB
Manufacturer: ATA
Model: HDT722525DLAT80
Revision:
Removable Media: Yes
BSD Name: disk2
OS9 Drivers: Yes
SCSI Target Identifier: 0
SCSI Logical Unit Identifier: 0
S.M.A.R.T. status: Not Supported
Volumes:
I1232GB:
Capacity: 232.89 GB
Available: 14.1 GB
Writable: Yes
File System: HFS+
BSD Name: disk2s3
Mount Point: /Volumes/I1232GB
ATA HDT722525DLAT80:
Capacity: 232.89 GB
Manufacturer: ATA
Model: HDT722525DLAT80
Revision:
Removable Media: Yes
BSD Name: disk3
OS9 Drivers: Yes
SCSI Target Identifier: 2
SCSI Logical Unit Identifier: 0
S.M.A.R.T. status: Not Supported
Volumes:
I2232GB:
Capacity: 232.89 GB
Available: 180.11 GB
Writable: Yes
File System: Journaled HFS+
BSD Name: disk3s3
Mount Point: /Volumes/I2232GB
The RAM consists of 4 identical modules and is about 1 year old:
DIMM0/J21 to DIMM3/J24:
Size: 512 MB
Type: SDRAM
Speed: PC133-333
Status: OK
Many thanks for your help!
Josef
Apple G4 AGP Mac OS X (10.4.8) 4 internal hard disks, dual layer DVD-RW, 2GB RAM

What I did so far: 'I2232GB' was my main OS X
startup volume, 'I1232GB' contains a clone of it,
plus additional folders like software base and
backups.
After upgrading 'I2232GB' to Mac OS X 10.4.8
through Software Update and repairing permissions all
was OK as long as the Mac was just shut down or
re-started: it always booted up in Mac OS X 10.4.8
from 'I2232GB' without any problems.
The next day I booted from 'I1232GB' to do the same
there.
Afterwards I could no longer boot in Mac OS X 10.4.8
from 'I2232GB' nor in in Mac OS X 10.4.8 from
'I1232GB': it just gets to the grey screen with the
Apple logo, but the round circle underneath
indicating some progress never appears. I left it
there for hours: it just hangs.
With the Option key held at startup I could boot from
the other partitions with Mac OS 9.2.2 or the eDrive
with 10.4.7. None of their Startup Control Panels was
able to get me back to 10.4.8!
So I booted from the TechTool Pro 4.5.1 DVD to
Optimize both volumes, 'I1232GB' & 'I2232GB',
always Files only.
Then I booted from the DiskWorrior 3.0.3 CD to
rebuild the directories of both volumes, 'I1232GB'
& 'I2232GB'.
Still I can not boot from either 'I1232GB' or
'I2232GB' in Mac OS X 10.4.8!
Downloaded the Mac OS X 10.4.8 Compo Update (for PPC)
and installed it onto both 'I1232GB' & 'I2232GB'
while booted from the eDrive which I keep on Mac OS X
10.4.7 - no luck either, still I can not boot from
either 'I1232GB' or 'I2232GB' in Mac OS X
10.4.8!
Then I backed up the users folder from 'I2232GB'
onto 'I1232GB', booted from Mac OS 9.2.2 and used
Intech's Hard Disk Speedtools 3.6 to format
'I2232GB', afterwards initialized it with Alsoft's
Plus Maximizer Extension for a Block Size of 512
Bytes.
Installed Mac OS X 10.4 from DVD, as well as iLive
'06 and upgraded everything to the latest releases
with Software Update. All was working fine with all
the required reboots until another startup volume was
chosen: afterwards again I can no longer boot back
into Mac OS X 10.4.8 on the fresch installed
'I2232GB'!
I found several typos in above post, wherever it was 10.2.8 it should have read 10.4.8 - I'm very sorry for confusing you, this would not have made sense, but I found no way to edit the existing text therefore I modified the quote of it here.
I do not need Mac OS X 10.2.8 back, but it would be nice to boot back in Mac OS X 10.4.8 from another volume as the current one - which was working fine before with Mac OS X 10.4.7.
Many thanks,
Josef

Mid-2009 MacBook Pro sees internal SATA hard drive, but will not boot from or format

I inherited a Mid-2009 MacBook Pro (15-inch, 2.53 GHz model) with a very strange issue.
It first presented itself as not being able to boot from the internal SATA hard drive that came with the computer. Nothing I tried could get it to boot, so I assumed the file system was corrupted beyond repair and booted from a CD to try to format the drive. Disk Utility on the CD would not format the drive, giving me strange error messages like "Unable to write to the last block of the device".
At this point I figured the drive itself must be toast, so I pulled it out and put another known-good SATA hard drive in, booted from CD, and attempted to format. Again, same error messages and an unsuccesful format.
So I had the bright idea of formatting one of the drives in an external enclosure and then putting it in the MBP to see if OS X would even install. No dice. Get a cryptic error message before installation even begins.
So I installed OS X on the drive in the external enclosure and put it in the MBP, and it attempts to boot, but never goes anywhere.
So to sum up, the symptoms I'm seeing:
MacBook Pro CAN see internal SATA hard drives.
MacBook Pro WILL NOT boot from any internal SATA hard drive and cannot format or install OS X to any internal SATA hard drive.
MacBook Pro WILL boot from any CD or external device and seems to work properly otherwise.
At this point I'm thinking it's one of two things: the hard drive ribbon cable or the SATA controller on the logic board.
Since the MacBook Pro seems to work completely fine other than this one issue, and will boot properly from both external devices and the CD (also a SATA device), I'm thinking and hoping that it's just the hard drive ribbon cable. From my searches online, I've heard that this batch of MacBook Pros is known to have issues with the hard drive ribbon cable, but it seems in most cases this manifests itself by the Mac not being able to see a drive at all.
I've done quite a bit of troubleshooting to get to this point, but right now I'm just looking for any feedback at all. Specifically I'd love to know a way I can easily test to see whether it's the logic board or the cable.

UPDATE: An interesting development!
I just tried a third known-good SATA hard drive, one which I believe supports SATA I only (but I'm not sure), and unlike the other drives that the Mac sees but cannot properly interact with, the Mac can't even see this one when I put it inside.
Frustrating as this may be, I believe I'm actually getting closer to a solution since my symptoms now appear to be closely aligned with people having SATA ribbon cable issues.
Onward!

G4 that will not boot from any disc EXCEPT the Apple Hardware Test CD

We have a DP 1ghz Quicksilver PowerMac G4 that will not boot from any disc EXCEPT the Apple Hardware Test CD that came with the machine.
We were in the process of installing 10.4 Tiger before placing it for sale.
The Mac was originally OSX Server 10.1 that we later converted to a worksation running 10.3 Panther.
It has 1 GB of memory, 80GB hardrive, 250MB Zip Drive and a Radeon 7500 video card.
Since this machine only has a CD-R drive and not a DVD-R, we installed Tiger using another Mac via Target Disk Mode. The installation process went well, but when I tried to reboot I got a Kernel Panic right after startup screen with the grey Apple logo.
On some reboots we get to the blue startup screen, others it stops at the grey Apple logo, others a black box like the a Kernel Panic - but with no text. Twice it went directly into Open Firmware.
We have done the following during our troubleshooting:
- Reseat RAM, Video Card, Hard Drive, Zip & CD-R connections
- Remove RAM 1 stick at a time and reboot
- Replace RAM with RAM from another working Quicksilver
- Replace Video Card with one from another working Quicksilver
- Zap PRAM
- Reset CUDA switch
- Unplug the MAC and remove everything (RAM, Battery, etc) for 30 minutes and try to reboot
- Tried booting from the Macintosh Server G4 Software Restore CD
- Tried booting from Mac OS X Server CD
- Tried booting from AppleCare Protection Plan CD with TechTool
- Tried booting from Diskwarrior CD
- Tried booting from an external FireWire drive with a disk image of Tiger OS Install
- Tried booting with the hard drive disconnected
The Mac WILL boot from the Apple Hardware Test CD and will pass ALL of the extended tests.

Conventional wisdom says that any Mac that will not boot up from a System/Install CD OS 9 or an Install CD Mac OS X, has a Hardware problem.
The diagnostic CD is a red herring because it uses a very primitive method of reading the CD, and so does not properly represent the machines general ability to read CDs.
I would look at the CD drive cables, etc, and see if another drive gives different results.
You have not mentioned using the Startup Manager (option key at Startup) to do any checking:
HT1310- Startup Manager: How to select a startup volume

IMac will not boot from any mode except Target Disk

I have an Early 2008 Penryn iMac 24" MB398LL/A running OS X 10.7.4 (see specs below) that will not boot from ANY mode, It also has several strange vertical bars from top to bottom on the screen. They are about 10 px wide, with some pixels empty and looks a bit like a barcode if you squint at it.
I have tried Safe Boot, Force Boot, DVD Boot, FireWire/USB Boot, and it always gets to the same point. It gets to the apple screen with the spinning gear and then after about 8 seconds it freezes. The only way it works at all is in Target Disk Mode. It pops right up on my Macbook Pro and I was able to grab all my info!
I have run Disc Utilities and Tech Tool on it many times from my MBP and it passes every test.
I reformatted the HD and installed 10.7 again, it still freezes up at the same point.
I have tried using Single User mode and every time have had to run /sbin/fsck -fy twice because it always says the disk is ok but it was modified on the first pass.
I thought maybe it had a bad video card or logic board but and I ran the Apple Hardware Test on many occasions and it always passes. Recently I was told about Loop Mode and just completed running the AHT for just over 30 hours without any errors at all.
UPDATE...
Strange Part… I tried installing Mountain Lion in Target Disk Mode and everything went smoothly. When it restarted on its own the lines on the screen were gone for the moment, but the Mac still freezes up on the spinning gear and immediately restarts on its own. I have run every thing listed above on it and still nothing. Sometimes the lines reappear then in two more starts they are gone.
I did manage to have it start one time got a copy of the the error report (its at the bottom too) The Mac ran for at least 30 minutes with no problems, then the screen went crazy a few seconds and it became unresponsive. The mouse moved but that was all it could do. Now my iMac continually restarts itself, I don't have any more ideas, HELP!
Specs...
The iMac "Core 2 Duo" 3.06 24-Inch Aluminum (Early 2008/Penryn) features a 3.06 GHz Intel "Core 2 Duo" processor (E8435), with two independent processor "cores" on a single silicon chip, a 6 MB shared level 2 cache, a 1066 MHz system bus, 2 GB of RAM (800 MHz DDR2 SDRAM, PC2-6400), a 500 GB (7200 RPM) Serial ATA hard drive, a vertically-mounted slot-loading DVD±R DL "SuperDrive", NVIDIA GeForce 8800 GS graphics acceleration with 512 MB of GDDR3 memory, a built-in iSight video camera, and built-in stereo speakers underneath the 24" glossy TFT Active Matrix LCD (1920x1200 native) display.
Error Report…
Sat Sep 1 17:13:12 2012
panic(cpu 0 caller 0xffffff801a4b7b95): Kernel trap at 0xffffff7f9bab8654, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000010, CR3: 0x0000000011803000, CR4: 0x0000000000000660
RAX: 0x0000000000000001, RBX: 0xffffff8050e00000, RCX: 0xffffff801aa8eb00, RDX: 0xffffff80602dba38
RSP: 0xffffff80602dbb60, RBP: 0xffffff80602dbb60, RSI: 0x0000000000000000, RDI: 0x0000000000000000
R8: 0x0000000000000000, R9: 0x00000000000000ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff
R12: 0xffffff8050e00000, R13: 0x0000000000000000, R14: 0x0000000000000002, R15: 0x0000000000000000
RFL: 0x0000000000010246, RIP: 0xffffff7f9bab8654, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000010, Error code: 0x0000000000000000, Fault CPU: 0x0

Here is the complete error log...
Sat Sep 1 17:13:12 2012
panic(cpu 0 caller 0xffffff801a4b7b95): Kernel trap at 0xffffff7f9bab8654, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000010, CR3: 0x0000000011803000, CR4: 0x0000000000000660
RAX: 0x0000000000000001, RBX: 0xffffff8050e00000, RCX: 0xffffff801aa8eb00, RDX: 0xffffff80602dba38
RSP: 0xffffff80602dbb60, RBP: 0xffffff80602dbb60, RSI: 0x0000000000000000, RDI: 0x0000000000000000
R8: 0x0000000000000000, R9: 0x00000000000000ff, R10: 0xffffffffffffffff, R11: 0x00000000ffffffff
R12: 0xffffff8050e00000, R13: 0x0000000000000000, R14: 0x0000000000000002, R15: 0x0000000000000000
RFL: 0x0000000000010246, RIP: 0xffffff7f9bab8654, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000010, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff80602db800 : 0xffffff801a41d5f6
0xffffff80602db870 : 0xffffff801a4b7b95
0xffffff80602dba40 : 0xffffff801a4ce4ad
0xffffff80602dba60 : 0xffffff7f9bab8654
0xffffff80602dbb60 : 0xffffff7f9baa218c
0xffffff80602dbbb0 : 0xffffff7f9baa20e2
0xffffff80602dbbd0 : 0xffffff7f9ba73554
0xffffff80602dbc00 : 0xffffff7f9aa8d470
0xffffff80602dbc40 : 0xffffff7f9aa8d3df
0xffffff80602dbc60 : 0xffffff7f9aa926ec
0xffffff80602dbcf0 : 0xffffff7f9aa8af20
0xffffff80602dbd20 : 0xffffff7f9aadacc7
0xffffff80602dbd70 : 0xffffff801a833b9b
0xffffff80602dbdc0 : 0xffffff801a862d57
0xffffff80602dbe30 : 0xffffff801a497cef
0xffffff80602dbe80 : 0xffffff801a420abd
0xffffff80602dbeb0 : 0xffffff801a410448
0xffffff80602dbf00 : 0xffffff801a4195fb
0xffffff80602dbf70 : 0xffffff801a4a5ad6
0xffffff80602dbfb0 : 0xffffff801a4ced13
      Kernel Extensions in backtrace:
         com.apple.iokit.IOGraphicsFamily(2.3.4)[2600903C-EEDE-321B-A023-169DC9B26EA6]@0 xffffff7f9aa81000->0xffffff7f9aab8fff
            dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f9aa4d000
         com.apple.NVDAResman(8.0)[6A699209-FB98-316B-A3C0-DCA82AA8C86B]@0xffffff7f9aad8 000->0xffffff7f9addafff
            dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f9aa4d000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[99CA4184-8D92-31B2-8726-46139E8E3DFF]@0xff ffff7f9aac4000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[2600903C-EEDE-321B-A023-169DC9B26EA6]@0 xffffff7f9aa81000
         com.apple.GeForce(8.0)[4B9BE287-5251-398E-96B0-BB16C9BFB2D9]@0xffffff7f9ba72000 ->0xffffff7f9bb34fff
            dependency: com.apple.NVDAResman(8.0.0)[6A699209-FB98-316B-A3C0-DCA82AA8C86B]@0xffffff7f9aa d8000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[99CA4184-8D92-31B2-8726-46139E8E3DFF]@0xff ffff7f9aac4000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f9aa4d000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[2600903C-EEDE-321B-A023-169DC9B26EA6]@0 xffffff7f9aa81000
BSD process name corresponding to current thread: WindowServer
Mac OS version:
12B19
Kernel version:
Darwin Kernel Version 12.1.0: Tue Aug 14 13:29:55 PDT 2012; root:xnu-2050.9.2~1/RELEASE_X86_64
Kernel UUID: 3005059E-270B-3B9F-940D-7A66C05DDC9D
Kernel slide:     0x000000001a200000
Kernel text base: 0xffffff801a400000
System model name: iMac8,1 (Mac-F227BEC8)
System uptime in nanoseconds: 26349024446
last loaded kext at 22534854703: com.apple.driver.AppleHDAHardwareConfigDriver          2.3.0f2 (addr 0xffffff7f9c489000, size 12288)
loaded kexts:
com.apple.driver.AppleHDAHardwareConfigDriver          2.3.0f2
com.apple.driver.AppleHDA          2.3.0f2
com.apple.driver.AppleTyMCEDriver          1.0.2d2
com.apple.filesystems.autofs          3.0
com.apple.iokit.IOBluetoothSerialManager          4.0.9f8
com.apple.iokit.IOBluetoothUSBDFU          4.0.9f8
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleMuxControl          3.2.6
com.apple.driver.AppleBacklight          170.2.3
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.GeForce          8.0.0
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.ApplePolicyControl          3.2.6
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleIRController          320.15
com.apple.iokit.SCSITaskUserClient          3.5.1
com.apple.driver.AppleFileSystemDriver          3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.2.1
com.apple.driver.AppleFWOHCI          4.9.5
com.apple.driver.AppleUSBHub          5.1.6
com.apple.driver.AirPortBrcm43224          600.36.17
com.apple.iokit.AppleYukon2          3.2.3b1
com.apple.driver.AppleAHCIPort          2.4.0
com.apple.driver.AppleIntelPIIXATA          2.5.1
com.apple.driver.AppleUSBEHCI          5.1.5
com.apple.driver.AppleUSBUHCI          5.1.5
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleACPIButtons          1.6
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.6
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2
com.apple.driver.AppleIntelCPUPowerManagement          196.0.0
com.apple.driver.DspFuncLib          2.3.0f2
com.apple.iokit.IOAudioFamily          1.8.9fc9
com.apple.kext.OSvKernDSPLib          1.6
com.apple.kext.triggers          1.0
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.nvidia.nv50hal          8.0.0
com.apple.NVDAResman          8.0.0
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleHDAController          2.3.0f2
com.apple.iokit.IOHDAFamily          2.3.0f2
com.apple.iokit.IOSurface          86.0.2
com.apple.iokit.IOBluetoothFamily          4.0.9f8
com.apple.driver.AppleGraphicsControl          3.2.6
com.apple.iokit.IONDRVSupport          2.3.4
com.apple.iokit.IOGraphicsFamily          2.3.4
com.apple.driver.AppleSMC          3.1.3d11
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.2.0d16
com.apple.iokit.IOUSBHIDDriver          5.0.0
com.apple.driver.AppleUSBMergeNub          5.1.5
com.apple.driver.AppleUSBComposite          5.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOATAPIProtocolTransport          3.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.iokit.IOUSBUserClient          5.0.0
com.apple.iokit.IO80211Family          500.15
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOAHCIFamily          2.2.0
com.apple.iokit.IOATAFamily          2.5.1
com.apple.iokit.IOUSBFamily          5.1.6
com.apple.driver.AppleEFIRuntime          1.6.1
com.apple.iokit.IOHIDFamily          1.8.0
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          344
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.6
com.apple.iokit.IOPCIFamily          2.7
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
Model: iMac8,1, BootROM IM81.00C1.B00, 2 processors, Intel Core 2 Duo, 3.06 GHz, 2 GB, SMC 1.30f1
Graphics: NVIDIA GeForce 8800 GS, NVIDIA GeForce 8800 GS, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 1 GB, DDR2 SDRAM, 800 MHz, 0x2C00000000000000, 0x38485446313238363448445A2D3830304531
Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 800 MHz, 0x2C00000000000000, 0x38485446313238363448445A2D3830304531
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8C), Broadcom BCM43xx 1.0 (5.10.131.36.16)
Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports
Serial ATA Device: WDC WD5000AAKS-40YGA1, 500.11 GB
Parallel ATA Device: MATSHITADVD-R   UJ-875
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0xfd400000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1a100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x820f, 0x1a110000 / 5
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x5d100000 / 2
USB Device: Hub in Apple Extended USB Keyboard, apple_vendor_id, 0x1002, 0x1d100000 / 2
USB Device: Trackball, 0x046d (Logitech Inc.), 0xc404, 0x1d120000 / 4
USB Device: Apple Extended USB Keyboard, apple_vendor_id, 0x0204, 0x1d110000 / 3

G5 will not boot from disk

I cant get my G5 to boot from a dvd....
It will boot off of my hardware diag dvd ,but not off of any 3 of my install disk
Any ideas?
I tried a few commands in Open Fimware prompt :
reset-nvram press Return on keyboard
set-defaults press Return
reset-all press Return
and when i tried the commands the first time, my computer restarted and was able to boot from the os dvd...( after i got it working, i turned it off and tried again, just to see if i fixed it)( i didnt fix it).but now when i type the commands, my computer hangs up on the last command.
Do you know of any other commands i can try, to get my system to boot from a os dvd?
Thanks for your help
tfarquhar

It means something is going wrong before the startup process gets to the stage where it can accept the startup key command input. There are various checks that happen (called POST - pre operating startup test - if I recall correctly). The firmware checks basic things like is there a processor available, how much RAM is connected, is a drive connected…
I think all the early stages are handled by the Boot ROM & NVRAM, these are generally not 'user fixable'. It indicates something is badly wrong. It could be failures in the main logic board or CPU(s) or the power management unit or possibly a dead battery (the small internal 'clock' battery is cheap & easy to replace - worth a try -> search this apple support for 'G5 YOUR MODEL & replace battery')…
Of course it could be something simple like a failed keyboard or usb hub, so try removing everything and just use the Apple keyboard & mouse and one display directly connected to the G5. You should also look for other signs such as beeps or flashes of the power button on startup, remove the outer metal door & look along the RAM slots for any lights when it gets powered on. The support site has info on what they mean.
It couldn't really hurt to try removing and replacing user-serviceable parts such as the graphics card, RAM, HD. Sometimes connections may need reseating. You will also want to remove any other PCI cards that are installed. Again the support site has instructions for all of this, sorry I would link to them for you, but I can't make sense of the model description in your posts.
An Apple service center may diagnose this for you, but unless you have Applecare they will charge you for it.

[nForce] System Not Booting From CD to install O/S

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