2003 G5 won't boot

I have 2003 2GHz dual G5 that now won't boot after installing a new hard drive.
On pressing the power on there is a red flash inside the machine above the switch, a click-click sound, the fans move a fraction, then nothing.
I've replaced the PRAM battery (the old one was completely drained) and reset the PMU, but it still won't boot.
Has anyone any ideas as to what may be wrong? Has the power supply gone kaputt or could it be the logic board?
I'd be grateful for any suggestions.

I have also experienced this problem today. I tried to install the 10.5.1 update, which failed but rebooted the machine anyway. Upon reboot, there was no video and the status light flashed repeatedly. It was not 2, 3, 4, 5 or 6 flashes as are documented in the manual.. it never stops. I cannot reset PRAM or access Open Firmware.
I disconnected all third-party peripherals and tried again, to no avail. The machine was running absolutely fine before this reboot.
$4000 says I'm extremely dissatisfied (p-i-s-s-e-d was censored) and will not be purchasing another Mac. My DEC Alpha was dropped off a truck and still works 100%.
PS: When I purchased my G5, I was denied the Apple Care Protection Plan based upon the fact I was in Florida.. not that it would help at this stage in the game.

Similar Messages

Mac Pro 2008 won't boot from install disc - black screen

Hello,
I recently purchased a new hard drive to replace the original that came with my Mac Pro 2008. I was able to format the new drive using Disk Utility. I am now at the point where I need to install OS X onto the new drive, but the computer refuses to boot from the disc. The disc is recognized by the computer (I can access the disc and am able to use the BootCamp applications, etc.) but I just get a black screen when trying to boot directly from the disc. The computer boots fine otherwise.
I have tried the following:
I have tried using both the gray install disc that came with the computer and the Snow Leopard Install DVD disc.
I have tried booting using the "C" key and the "option" key but still receive a black screen following the chime (I've held these down for several minutes).
I have tried restarting from either install disc using the Bootcamp Assistant.
I have tried running the installation software to get it to restart from the disc.
I have tried a combination of the drives, i.e. trying to boot from the discs with just the new drive installed, just the original drive installed, and with both in bay1 and 2.
Everything results in the computer starting up, hearing the chime, and then nothing..just black screen. I have the original drive partitioned with BootCamp with OSX Snow Leopard and Windows 7 installed (I don't know that that matters).
I am at a loss as to what to try next. It doesn't seem like the superdrive because it is recognizing the disc, it just won't boot from it.
Any help is appreciated, thank you.

Clone should be a must and easy to do and learn (learn by doing! 2)
6800 would 'qualify' as 5x70 series flashed etc and same rule: 10.6.5
In the past there was 10.4.6, 10.5.6, but not 10.6.6 - even though strong need for such a DVD.
10.6.8 DVD would be excellent
Lion or ML - buy, download, make an installer flash card would be what I would do at this point.
Then keep both - dual boot as you learn and test and see what ML does and waht you had that required Rosetta to support PowerPC. See www.roaringapps.com about that.
With Carbon Coyp Cloner - was share, now commercial, great utility been around since 10.2.2 at least - this time 2003. 10 yrs.
You can clone the system folders, you can even selectively choose. You can skip copy of most of your home account and do that separately to another drive if you want.
Clone Windows with Paragon or WinClone and use Windows 7 or 8 DVD to do a system repair (automatic) or to edit the BCD file. It can and should - and all you do is boot Windows 7 DVD w/ only the one drive present and go at it. Piece of cake. But yes, Windows gets fussy if you change or remove or move. BCD to the rescue. A proper program for cloning like Paragon's "Clone OS" meant for going from disk drives to SSDs, knows that and how to do it.
Back to how to clone etc:
Clone
Disk utility has RESTORE which will also clone your system but not the Lion Recovery partition. Oddly Apple did not 'endorse' making bootable clone of the system which works too but most choose Carbon Copy Cloner - it works more consistently; it allows for smart update of the backup volume. Both can backup to a sparse disk image if desired.
Using Cloning as a Backup Strategy
http://www.macupdate.com/app/mac/7032/carbon-copy-cloner
http://www.bombich.com/software/updates/ccc-3.5.html
OS X Lion Install to Different Drive
How to create an OS X Lion installation disc MacFixIt
Migration Assistant Update for Mac OS X Snow Leopard
http://www.apple.com/support/lion/installrecovery/
Create an OS X Lion Install disc
http://reviews.cnet.com/8301-13727_7-20080989-263/how-to-create-an-os-x-lion-ins tallation-disc
How to clone your system:
http://macperformanceguide.com/Mac-HowToClone-backup.html
http://macperformanceguide.com/Mac-HowToClone.html
http://www.macupdate.com/app/mac/7032/carbon-copy-cloner
http://www.macperformanceguide.com/blog/2012/20120711_2-MacPro-internal-clone-ba ckup.html
The DVD is dependent on your hardware. And your hardware changed. The drivers for the 5780 and 6xxx are bundled in the OS and lacking. Minimum build thing.
Put the new drive anywhere you want. Does not matter. Can move it later. Can be drive bay 0-3 or a Firewire external or under the DVD drive.
When you clone pull the old drive and boot from the newly cloned.
After that keep a backup clone around all the time. Takes less than 10 minutes to do a smart update to copy just the changes to keep it current. So you have working copy of the system. I keep Clone "A" that I keep "as was" the system as of last month or whatever (like 10.7.4 before upgrade to 7.5).
Comes easier after doing it once and have all your ducks in a row.

IMac won't boot, won't start in safe mode

I'm at my wits end. My 17" iMac G4 won't boot. I just get the Apple logo, with the spinning progress wheel. I get the same thing when I try to boot in safe mode -- it just sits there with the progress wheel spinning. (I waited an hour, just to make sure.)
Here's what I've tried:
First, I read various articles on the Apple Web site which, among other things, talk about bad fonts, etc. All of the tips rely on safe mode, so I didn't get too far.
I was able to see the iMac HD from my PowerBook by launching it as a target drive, via "t", using a firewire cable. I used Disk Utility to do a repair on the iMac HD. It did find problems (I don't remember what they were), but when I ran it again it said there were no problems with the HD. I can move files from it to my machine, and browsing it looks normal. I looked for non-standard StartupItems, as recommended, but didn't see anything that isn't on the PowerBook.
I also tried putting my install disk in the iMac as it booted. The DVD went in, but had no effect on startup. (Same symptoms.)
Is there any way I can re-install from my PowerBook -- i.e., can I somehow run setup from the PowerBook on the firewire-connected iMac?
I'm not sure of the exact version of the OS it's got, since I can't boot it to see. (Should I look somewhere on the HD for that information?)
Any ideas or suggestions?
Thanks!
iMac Mac OS X (10.4.8)

I am just going to jump on the band wagon (first post). Before I try all the good advise given for "no start"... Does this info point me in a different direction? thanks
IMac (2003) OS 10.4.X troubleshooting. Bill Howarth 14Feb07
· iMac has been running slow. Has not been shutdown/restarted in months.
· Shutdown Computer, Power off, Power on. Get Apple logo and rotating timer. Hangs.
· Power off, power on with mouse down to insert TechTool Pro 4 CD.
· Turn journaling off, perform Directory Maintenance. Locks up at 1971269 of 1971270.
· Start from TechTool CD. Run test on File/Finder info. Locks up at mh1661.html ~ 70% of files tested.
· Start from TechTool CD. Run test on File/Finder info with “repair on” checked. Task completed.
· Run Directory Maintenance. Locks up at 1971269 of 1971270.
· Cannot do e-drive restart in TechTool (greyed out).
· Optimize volume. Task completed.
· Run Directory Maintenance. Locks up at 1971264 of 1971264.
· Try regular startup. Power off, power on (no CD). Get Apple logo and rotating timer. Hangs.
· Shift startup. Get Apple logo and rotating timer. Hangs.
· Startup from Apple Test CD (v2). Passes extended hardware test.
· Startup. Get Apple logo and rotating timer. Hangs.
Arrrrggghhhhh.
iMac Mac OS X (10.4.8)

Mac ibook (powerbook4,3 4.3) won't boot tiger os x

Hi..
I booted into Open Firmware on an ibook which previously had os x 10.4.11 installed on it. I did something to change the boot parameter by choosing to boot into os 9.2.1 but now os x won't boot. I then reformatted the drive with an os 9.2.1 installation cd disk utility.
When I boot into Open Firmware the first and second line read:
Apple Powerbook4,3 4.3 6f3 BootROM built on 05/14/02 at 15:14:32
Copyright 1994-2002 Apple Computer, Inc.
I'm wondering why since I have purchased a retail copy of OS X Tiger 10.4 that I can't boot from the Tiger installation media.
Can anyone help me recover my iBook? I purchased the iBook second-hand with OS X preinstalled.

Now that may not work either.
The Powerbook 4,3 iBooks were anytime between May 20, 2002 and October 22, 2003.
Inside the battery bay it should tell you if there is a CD, DVD, or Combo drive (supports DVD), or superdrive (DVD burner). It should also tell you the serial number, which is your key to knowing which retail installer will work. The serial numbers are written with a prefix of 5 characters, the last 3 tell you the date of manufacture,
and what was able to run on it.    So any xx243xxxxx where x can be any letter or number would be the 43rd week of 2002.   Any xx307xxxxx would be the 7th week of 2003.
During that time frame:
August 24, 2002 10.2 was released (26th week).
After this point only the 10.2.3 retail installer will work or later retail installer, or the prebundled discs.
December 19, 2002 10.2.3 retail was released (51st week).
After this point only the 10.3 retail installer or later retail installer would work, or prebundled discs.
10.3 retail installers were all CDs.
10.4 retail installers were mostly DVDs, though a limited version was available with CDs known as the Media Exchange discs.
Prebundled discs included Appleworks and hardware test and portions of iLife not included with the operating system.
You can't use the installer disc that came with another Mac of the same vintage but different model, or different model but same vintage.   You can't use OEM or upgrade discs, except where the upgrade disc was available within the 3 weeks of the operating system release and if the Mac was shipped during that tight time frame.

WINXP won't boot on FSB 166

I know that this kind of trouble has been here many times, but none of the posted info has been a solution to my problem.
I've just upgraded to XP2500+ Barton. The system is running perfect on 133 FSB, with the RAM at 166 (333), Sandra 2003 Pro results.
But!!!!!!!!!!!!!!!!!!!
Whenever I try to get to 166, bios runs fine, but Winxp won't boot, claiming to either not find a crucial library ( I've received many various errors ).
The farthest I've gotten, is the winxp boot screen, with the blue thingie moving, though the disk beeing dead. That was after setting a permanent AGP voltage and low driving comp.
I have reinstalled the WinXP, that didn't work either. So underclocked to FSB 133 and I'm writing this thread.
Could anyone help, please. There is so many positive comments about the KT3 Ultra 2 and Bartons, so why doesn't mine work.

Found some. Here goes a little of what I found on adress, but there are lots more, especially if you are upgrading from Windows 2000:
http://search.microsoft.com/search/results.aspx?st=b&na=83&qu=crucial+library&View=en-us
167354 - BUG: Error "Unexpected EOF" May Occur Under Dbmsrpc3.dll
If it uses the 16-bit Multi-Protocol Net-Library, a DB-Library application may return the following errors when running queries through multiple concurrent connections: DB-Library: Unexpected EOF from SQL Server Net-Library error 81:...
http://support.microsoft.com/default.aspx?scid=kb;en-us;167354
321698 - PRB: Cannot Connect to MSDE 2000 by Using ADO.NET with SQL Authentication
If you try to open a SqlConnection object to a new installation of Microsoft SQL Server 2000 Data Engine (MSDE 2000) under the following conditions, a SqlException exception may by thrown: You are using SQL Server Authentication. -and- You are using...
http://support.microsoft.com/default.aspx?scid=kb;en-us;321698
818779 - HOW TO: Populate a DataSet Object from a Database by Using Visual C++ .NET
This step-by-step article describes how to fill a DataSet object with the results of one or more database queries and then how to access the data after the query is loaded in the DataSet object. DataSet objects are in-memory objects that can hold...
http://support.microsoft.com/default.aspx?scid=kb;en-us;818779
More Support & Troubleshooting results

Portege R100 won't boot from the HDD - missing operating system

Hello,
I have a Portege R100 that won't boot from the HD, I get the message "missing operating system".
I don't have a compatible CD or floppy driver, I just have a 1.8 inch case for the hd, it works, i also have norton ghost 2003 installed in another computer (a toshiba satellite A45).
I tried to recover the disk using norton and the ghost image in the recovery cds but it keep asking for a password.
I would like to know if there is a way to use the recovery cds with norton and the usb driver and avoid the password screen (or where can I get the password?).
Thanks!

Yes, I know that the recovery cds are password protected, that's the password I'm talking about.
I'm not trying to boot from a USB stick, I'm using ghost 2003, this way when I reboot the USB device is recognized as a second hard drive.
I have the option to use the cds to recover from the ghost enviroment but I would need the gho password.
What I would like to know is if there is a command line to force the cd to ghost the second driver instead of the first.
I'm not a great fan of norton ghost but I don't have another option, all cd drivers that I have are incompatible with Portege R100.
Thanks,

Clunking drive on start up, won't boot from CD

This 2003 Dual USB iBook suddenly started with a clicking noise coming from the hard drive. It won't boot from the hard drive, just lots of clicking.
If I put in the install DVD that came with the machine, eventually it will be recognised and the Apple logo will appear, but after a few minutes a circle with a cross through it appears. The hard drive clicks throughout all this and nothing else happens, just lots of clicking.
The HD is no doubt faulty, but I'm not sure why I can't boot from the install DVD?

The iBook should have come with Install CDs instead of a DVD.
You say you are running Mac OS X 10.4. Do you have the Install disc for 10.4 (which is likely a DVD)?
Sometimes using _Startup Manager_ allows you to boot from an optical disc when holding down the c key doesn't work.
If you manage to boot from the Mac OS X 10.4 disc, try repairing the hard drive from Disk Utility on the Install disc.
If this doesn't work, you could try booting into Safe Mode. This will take quite awhile longer than a normal startup because it does a file check and repair of the hard disk.
If this works you will see your normal desktop. Once completely started up in Safe Mode, try to restart normally, and go to Applications > Utilities > Disk Utility. Click on the top hard drive icon in the left sidebar and note the S.M.A.R.T. status at the bottom right of the pane. What does it say?
Select the named boot volume in the left sidebar, ("Macintosh HD" unless it's been renamed). What is the hard drive capacity and how much space remains available on it? Repair permissions on it.
See if you are able to do a little hard drive maintenance to help things out.

K7N2-L won't boot when CD-ROM installed

I'm assembling a new system:
K7N2-L, Athlon XP 1800+, 48C stabilized in setup
BIOS version W6570MS V5.0 031803 (from CMOS setup)
512MB DDR2700 RAM
Enlight HPC-340 PSU: 3.3V@28A, 5V@30A, 12V@15A, 285W max.
I installed an old hard drive as the Primary master, WD AC38400L, that has Win95 on it from a previous system. The jumpers on the WD drive are set to "single drive."
With an old Mitsumi 4x CD-R drive as the CD-ROM (Secondary IDE master), it boots fine from the hard disk (the Mitsumi doesn't support El Torito, so I can't test booting from a CD).
With a Sony CDU5211 (on the compatibility list) as the CD-ROM, the system won't boot at all, from CD or HD: I get the "DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER" message. The system appears to never try booting from the CD, even if I set that first in the boot order.
I swapped the CDU5211 with a CDU5211 in another machine; both CDU5211's work in the other machine and exhibit the same symptoms in the new one.
Both drives are detected correctly on bootup and in CMOS setup.
I have the boot order set to Floppy, IDE-0, CDROM.
There is no floppy drive in the machine (who needs one, these days?); setting the CMOS settings to reflect that does not change the symptoms.
I tried installing a new Maxtor 40GB (ATA-133) and got the same symptoms.
I'm hoping I have missed something obvious; please illuminate me! :)
--Barry ([email protected])

Quote
Originally posted by Bonz
Actually Wonka is no incorrect at all...you can dump the jumper out of the drive completely if you aren\'t running master/slave drives...and it doesn\'t matter where you lay the jumpers sideways on any of the pins as I\'ve stuck them wherever I felt like it in the past as long as it wasn\'t vertical and had no issues with the WD drives...
btw comparing apples (MS-6378) and oranges (K7N2G) isn\'t a comparison in my book...two completely different boards and different chipsets...
You gave up a great board...I built what you see below tonight and it booted up and ran like a champ at the get go...burning it in right now and it\'s screaming!!!
Sorry you\'ll miss out on IMHO what is the fastest setup I\'ve seen to date...
Cheers!! 8)
Wonkanoby and I were just saying the same thing in different ways. He was stating the jumper should be completely removed, and I was just making the point that there is a neutral position for the jumper. I understand that there is no functional electrical connection with the jumper there, and that it does not matter if the jumper is on those pins or in the trash can.
My point about using the MS-6378 to test the hard drive and CD-ROM was that it proved there wasn't something wrong with those or with my jumper settings on the drives. I know it's a completely different board.
I like the specs on the K7N2, so I will probably get another one at some point (when my credit card has recovered). I just got one with an atypical problem this time. The discussions here of problems with the onboard LAN were what convinced me to stick with the ASUS A7V333 for now; that, and it was $25 cheaper. I'm not looking for screaming performance ATM anyway, just something I can use for testing Windows Server 2003. This is about the 12th computer in my home lab.
--Barry

Computer Won't Boot Up

Here is my issue, my computer one day was working fine and the next it won't boot properly.
System Specs: Satellite T235D-S1345RD (Laptop) - Windows 7 (64bit) - BIOS 1.7 - 4gb RAM -
I have gotten the computer booted one time. I am unsure why it did that time but did not do it another time.
Since that one time I put the computer in hibernate and when I tried to bring it out it told me it failed when coming out of hibernate so it went to reboot and now won't boot.
Here are the few steps I have done to try and get it working. When it boots up it gives me an error message (says that power failed or for some reason it did not boot)
I have ran "Repair Computer" and it does not do anything. I try start windows normally and it goes no where.
So I then tried F8 and got into the Advanced Boot Menu. First one I tried was Start Windows From Last Known Good Configuration. (or something like that I forget the exact wording)
When it does that the computer will start to boot up go to the "Windows Loading" screen and then it flashes a blue screen (there are words there but it flashes so quickly I cannot read it) and it goes back to the boot screen and acts like it is restarting and continues in that loop.
Next step - Enter F8 again tried "Repair Computer" and it loads to a black screen with a Cursor but nothing ever happens. I have given it over 30 min and nothing happens.
So next step- I enter F8 again and try to boot up in safe mode and again when it loads it flashes a blue screen and then nothing.
EDIT - I found how to show the blue screen. It says UNMOUNTABLE_BOOT_VOLUME. Not sure what else I should do after I get that error message. Message Reads:
It reads UNMOUNTABLE_BOOT_VOLUME and says if it's the first time I've seen the error screen, to restart the computer. Then it tells me if it appears again, to check and make sure any new hardware or software is properly installed.
"If problems continue, disable or remove any newly installed hardware or software. Disable BIOS memory options such as caching or shadowing. If you need to use Safe Mode to remove or disable components, restart your computer, press F8 to select Advanced Startup Options, and then select Safe Mode."
END EDIT
Next Step: I come to you guys here on this forum. I am a bit perplexed and lost at what to do. I wonder if this is a virus but I cannot get the computer to respond to try to get into it to check.
Ideas? Advice? What should I try? I can get into the F8 menu but not sure what else I should try. I will try anything to get this computer up and running!
Thanks for any and all help.
Lynda

Hi:
The 24 character failure ID usually indicates HDD is failing/has failed. You need to replace it with a new one.
Specs: http://support.hp.com/in-en/product/HP-Pavilion-dv6-Entertainment-Notebook-PC-series/5191856/model/5...
Manual: http://h10032.www1.hp.com/ctg/Manual/c03099531
Check warranty: http://h10025.www1.hp.com/ewfrf/wc/weInput?cc=us&lc=en
Order recovery USB: http://support.hp.com/in-en/product/HP-Pavilion-dv6-6c13cl-Entertainment-Notebook-PC/5191856/model/5...
Contact HP: https://support.hp.com/in-en/contact-hp/product/HP-Pavilion-dv6-6c00-Entertainment-Notebook-PC-serie...
If you're under warranty, HP would send you replacement HDD.
If you're not, buy any branded 2.5" SATA 9.5mm thick internal laptop HDD and replace it yourself. But HDD of at least same capacity HDD as the one that came with your laptop (640gb) so that recovery media would work -
Go through page 56-58 in the Manual for replacement procedure. It's quite simple DIY job.
Something like this:
http://m.newegg.com/Product/index?itemnumber=N82E16822236561
If you've not yet created the Recovery media to restore the factory settings after replacement, you have to order a set of Recovery USB from HP.
For salvaging the data from old HDD, I suggest you take out the drive. Connect it to another PC using SATA to USB adapter - copy all the files you need.
http://www.amazon.com/Anker®-Converter-Adapter-Cable-included/dp/B005B3VO24
Regards
Visruth
++Please click KUDOS / White thumb to say thanks
++Please click ACCEPT AS SOLUTION to help others, find this solution faster
**I'm a Volunteer, I do not work for HP**

Satellite m300 won't boot! please help!

Hi,
I've got a bit of an issue here.. I have a Satellite m300.. a white one..
and it won't boot... I've had this very issue before but it turned out to be an external USB HDD that stopped it from booting up but now even with everything removed it still won't boot.
And it was fine until yesterday, it just gave up.. I am away from home for work so I have all the work stuff and unfortunately without my recovery cd, but my guess is that it won't even read it..
So this is what happens..
turn on..
all light come on.. including power and all the white lights around the keypad..
and then maybe 5 sedconds later caplock and numlock(?) green lights flash..
then it's a dead still.. no HDD activities or sound.. just dead quite..
the screen remains black blank through out..
it seems to get stuck here before reaching the post screen.
i thought the power button usually took more than just a push to turn off? it instantly swithces off with a single push of the power button..
I think this laptop is like on sleep or something and can't seem to wak up.. maybe?
And it has vista.
Please help.. I have some important work files I need to recover at least before formatting..
and that has to wait till I get home which won't be for a month or so..
which also lets me take it back for warranty as well..
any help appreciated!!!
cheers,
Min

Quote
Originally posted by syar2003
If running a LCD display with DVI connection , try to hook it up with
an analog VGA cable.
Can also be that the motherboard fails to initialize the vga AGP card.
Turn off all power incl. AC .
Disconnect all devices from motherboard : AGP/memory/drives/floppy/USB/PCI cards etc. take out the 20pin & 4pin PSU connectors and reset the motherboards
cmos .
Assemble PSU connectors ,only one DIMM module and graphics card and turn it on and se if you get a post .
Just removed all components. I reset the CMOS. I then reconnected the 20pin and 4pin, 1 stick ram, and the video card (no ide devices, no mouse, keyboard cd drives) and the monitor doesn't show up. I also tried another monitor so it isn't the monitor.
Could it have a bad AGP port?
Any other suggestions? I am thouroughly stumped. Also the power and reset buttons don't work no matter what configuaration I put the front panel connectors in. The Power LED is lit up and it doesn't work and the reset light is off and it doesn't work.
Also noticed one of my fans connected to one of the two other fan pins on the motherboard isn't working.
What a nightmare.

Mid 2010 MacBook Pro won't boot past blue screen

I've been having problems booting up my MacBook. I can't get past the blue screen. It went from booting slow at the grey apple logo screen to not booting up at all. Is it a problem with my hard drive? I also have boot camp running as well, but I can still see the boot camp drive for windows and my OS X drive, as well as my installation disk when I have it inserted when I hold the option key at start up.
I'm still able to run windows on it without any problems when I pick the windows drive. I tried different methods from different forums but I'm just not getting through. I tried holding 'c' to boot up from cd and I let it run over night but it never got past the grey apple screen with the gradient wheel (still spinning). I had already used time machine to back everything up before this happened since I was able to boot up properly (but slowly). Can anyone help? It's driving me nuts, and I can't remember what os/firmware version I'm running.

n your signature you said you are running 10.6.3. So let’s assume you are running Snow Leopard.
It sounds like your diagnosis of disk problems is correct. The OS X partition may be corrupt.
Try booting in Safe Mode.
http://support.apple.com/kb/HT1564
Try again to boot in normal mode.
If it will boot in Safe Mode but not in normal mode then you could have some 3rd-party software preventing the boot or you could have a corrupt disk or OS.
Boot as from the startup manager (Boot - option) and then select the installation disk.
Hopefully that will work better than starting with the Boot-C option.
Then try to repair the system disk.
Start the Disk Utility.
Perform the steps in http://support.apple.com/kb/PH5836.
If it repairs OK but still won’t boot reinstall OS X.
Installing Mac OS X 10.6 SnowLeopard
http://kb.iu.edu/data/akav.html

MacBook Pro Retina 15" mid-2012 won't boot in clamshell mode with an external display attached

I have a 15" MBPr mid-2012 running OS X 10.10.1. The system won't boot in clamshell mode (power is connected, lid shut) with an external display attached via an Apple Thunderbolt->DVI adapter. it boots fine if the lid is open. It isn't the adapter or the display since my 15" MBPr mid-2014 boots up just fine connected to the same adapter and monitor. And this system used to boot like this just fine some while ago (probably before it was upgraded to Yosemite). I've reset the NVRAM (twice) to no avail.
Has anyone encounter this? Anyone have a solution? Should I try an SMC reset (always a bit nervous about that)? Might it be a driver issue in Yosemite?
Thanks.

I have a 15" MBPr mid-2012 running OS X 10.10.1. The system won't boot in clamshell mode (power is connected, lid shut) with an external display attached via an Apple Thunderbolt->DVI adapter. it boots fine if the lid is open. It isn't the adapter or the display since my 15" MBPr mid-2014 boots up just fine connected to the same adapter and monitor. And this system used to boot like this just fine some while ago (probably before it was upgraded to Yosemite). I've reset the NVRAM (twice) to no avail.
Has anyone encounter this? Anyone have a solution? Should I try an SMC reset (always a bit nervous about that)? Might it be a driver issue in Yosemite?
Thanks.

IMac shut down suddenly and won't boot back up

This morning my iMac shut down suddenly. All I had open was Google Chrome and I was just on Facebook and that's it. When I tried to boot it back up, it wouldn't load past the startup sound, wherein it would appear to shut back down,or at the very least the screen would go black (my mouse has lights that stay on when the computer is on, and the light kept going on and off while the screen remained black). This was the case for at least a half hour until it suddenly booted itself back up all on its own. I had it on throughout the day, just browsing the internet and watching Youtube. It shut itself down twice during the day, and both times it restarted on its own right away after showing me a grey screen with the Apple logo and a progress bar. Now it just shut itself down again and it won't make it past the progress bar screen - if it even makes it that far, sometimes it shuts off right after it makes the startup sound. It keeps trying to boot up on its own over and over again, but it keeps shutting down right away. All the fixes I've searched for so far require a computer that actually boots up all the way so I don't think I could run any reports if I tried!
I'm running the latest version of Yosemite (10.10.2?).
Model number A1311
Not entirely sure what specs are useful to know so I'm just gonna write some of what's on the box it came in:
3.2 GHz Intel i3 processor, 4MBshared level 3 cache
4GB of 1333MHz DDR SDRAM
1TB serial ATA hard drive
ATI Radeon HD 5670 graphics processor with 512 MB of GDDR3 memory
Bought it around fall of 2010. Not sure if it's worth trying to get it fixed (I live nowhere near an Apple store) or if I should just get a new computer, but I would like to know what's wrong, if possible.

Try to boot into the Recover Partition by holding down the Command + R keys on startup. If it still won't boot then the HD has probably crashed. The is likely a AASP in your area, you can locate one by clicking AASP Locator, take it to one to be professional diagnosed. If it's only the HD, assuming you have been backing up, restoring to a new HD is pretty simple.

[865PE NEO2 PFISR] Won't boot with added memory

Recently I upgraded a few items on my PC which has been running fine for 18 months or so. I changed out the video card and bought double the memory of the same brand and type it had in it. I went from 1gig (2 sticks) and added two more sticks. But now it won't boot. The power is on but no output whatsoever.
I RMA'd the memory thinking that might be the problem but it's the same with the new set. I tried all sorts of memory/slot combos. Basically, the new memory works fine if you swap it out in bank A with the old stuff. That's how it's running right now, so I know all of the sticks are good. I can take a third and put it in either slot bank B and it'll boot, but obviously not run properly. But any combination of these four sticks and the system won't boot!
Please help!
I'm running this system:
Win XP (SP1 I believe)
865PE NEO2 PFISR
P4/3.0CGHz, 800M 478P/512K HT
DDR Corsair 512MB X4 (400)
Dual 80gb samsung HDs running SATA
Sapphire X800GTO 256M video card
Antec Sonata case
TruePower 380Watt ATX12V

What brand, model, and speed are the RAM sticks. Did you check your Test Report booklet which came with the mobo. If you can't find it, you can go to the MSI website and look for your MOBO and get the test report that way. Some brands/models will that have been tested are shown in the report to be okay in all 4 slots, some only test okay in 2 or 3. Check this report and if it is one of the brands/model/speed tested you will see how it fared. It may well be you the MOBO doesn't like your RAM in 3 or 4 slots.
Maybe I missed it, but did you try each slot with only one stick at a time? You may also have a bad RAM slot.

Lenovo G560 - Issue with won't boot and black screen after HDD upgrade

Lenovo G560 - Issue with won't boot and black screen after HDD upgrade.
What happen: My laptop was working fine, no blue screen issue, no funny business at all. I bought a new SSD Intel 120 GB and thought it would be a good idea to replace the HDD. I shutdown and disconnected the power adapter, waited a couple of minutes and removed the battery. I opened up the back case and replaced the HDD. And put all the screws back and put the battery back in.
Problem: The very first time I turned the power on, nothing happens besides a black screen. I pressed the dvd drive it works and opens up and closes. I waited for about 30 mins and still has blac screen. When I mean black screen, no bios menu, no logo, just a black screen with the fan sound on.
I have tried these:
1. Unplugged everything - battery, adapter, and pressed the power on button for about 60 seconds, nothing, the laptop turns on with the LED display on for both on and battery LED's. But nothing but black screen, no sound of windows loading just the fan and black screen.
2. I tried putting back my old 2.5" and nothing but black screen.
Thoughts and suggestions?
Solved!
Go to Solution.

Hi Autoexit173,
Welcome to Lenovo Community!
As per the query we understood that you are facing issue with system not booting in your Lenovo G560 laptop.
As you have mentioned that the system not booting, please try to remove the RAM and turn on the system and check if you can hear any beep sound. Also try to clean the RAM slots and check for the issue.
Click here for the steps to remove the RAM and refer page number 40.
Hope this helps. Do post back if issue persists!
Best regards,
Ashwin.S
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