IBook G4 Boot Problem- OS 10.4.11

Hello and Good Morning Everyone,
I am new to this forum so I hope I am posting this under the correct category. I am having a problem with 14-inch iBook G4 (1.33 Ghz) model. The computer was working with no problems until last night. I changed the login screen picture, by going to Library/Desktop Pictures folder. I changed the system default picture to Aqua Blue Default.jpg, and then changed the new picture I wanted to use to Aqua Blue.jpg. I then went to change the desktop background to my new graphic and the image was just solid blue. I could still see my dock and menus, but no graphic. At that point I decided to reboot my computer to see if that would change anything. The shut down was extremely slow, and when the iBook began to boot back on, I heard the boot tone, and all that displays now is the gray screen with the apple icon. I left the computer for about 20 mins and it will not boot. I can bring up the boot menu by pressing "Option" and can also access the firmware screen by pressing "Opt-Cmd-O-F", but still nothing. Finally around 1:30am I called it a night and left the computer on hoping at may just need to time to boot. Still nothing 5 1/2 hours later. If anyone has seen this behavior, please let me know how to proceed. As I stated, everything worked great up until last night. I even tried out TechTool Pro 2 days ago, and the report seemed to indicate everything was fine. Any assistance or input you can provide would be most helpful!!
Thanks,
Joreal Whitfield

If you can get the computer to start up from the OS X installer/boot disc, that would be
a good thing; since you could see about repairing disk and see if SMART status on the
computer's hard disk drive is satisfactory or failed. There also is an Apple Hardware Test
on the original disc install set as shipped with the computer when new. To boot from a
test on the same media as the installer, you have to see if the machine will start up to
the Startup Manager by holding down the Option key. You should be able to choose from
partitions on the original installer DVD where the AHT exists.
Usually, booting from the installer to check the disk situation involves holding down the
C key; and using the options in the installer's menu bar, and not the installer itself. The
Disk Utility version on the installer's menu has a few options, and their use may vary
depending on whatever you find out by trying. Trail and error troubleshooting, at its best.
Good luck & happy computing!

Similar Messages

Ibook G4 boot problem

my g4 won't boot up. All I get is the start up "beep" and a grey screen. No apple icon or anything. Any ideas??

Hi, and welcome to Apple Discussions.
Check out Apple's recommendations on _Troubleshooting portables that won't turn on or start up_. Maybe something there will help.

IBook boot problems

Hello, My iBook recently won't boot correctly. It goes to the login screen and then goes to a full screen terminal and asks for my password. The only password that works is the root password. Now this happened after I installed the xvid codec for quicktime but as far as I know that couldent have caused something like this. So in trying to fix this I rebooted the computer into single user mode and removed the applesetupdone (/var/db/.applesetupdone) file to hopefuly get the computer to just go through the intl. setup. Well that didnt work. Now it gets stuck in a loop saying it cant load up the intl. setup. I can still get into single user mode though so it should still be fixable. If not I think the mac has smbmount so I could just move my files over to my friends computer and reformat. I know this problem was not caused by my dual boot because its been running fine for about 2 years. Could anyone tell me how I could fix this boot problem or how to startup the network services in single user mode.
Thanks, Spazo

An update. . .
Booted in TDM and wouldn't show up on my MBP, however could view it in disk utility. It wouldn't let me mount it though. I've tried repairing however after an hour still nothing. Here's the info notes. I'm getting the impression the hard drive is damaged beyond repair.
Name : AAPL FireWire Target Media
Type : Disk
Disk Identifier : disk1
Media Name : AAPL FireWire Target Media
Media Type : Generic
Connection Bus : FireWire
Connection Type : External
Connection ID : 2979676490117816
Partition Type : Applepartitionscheme
Device Tree : /PCI0@0/PCIB@1E/FRWR@3/node@a95fffebd32b8/sbp-2@4020/@0:0
Writable : Yes
Ejectable : Yes
Mac OS 9 Drivers Installed : Yes
Location : External
Total Capacity : 27.9 GB (30,005,821,440 Bytes)
S.M.A.R.T. Status : Not Supported
Disk Number : 1
Partition Number : 0

IBook wont boot up from Firewire Drive - it used to

I've been struggling with my G3 iBook for the last few weeks. It's a long story...
My initial problem started when the beachball started spinning and spinning for the smallest little thing. I would have a single program running but it would still keep spinning. I repaired disk permissions and ran MacJanitor. MacJanitor would take more than 40 minutes to complete running. It usually used to take less than 5 minutes.
I called the local Apple dealer (no Apple Stores here) and they suggested that I reinstall the OS. I reinstalled the OS, but that didn't result in any improvement. A few days later I got a warning from the HDD S.M.A.R.T. status saying that the internal HDD was failing.
I didn't have a backup of my internal HDD so I went out and got myself an external 3.5" Firewire HDD. I then used Carbon Copy Cloner to clone the internal drive to the HDD. Cloning itself took about 8 hours - I assume because of the problem with the internal HDD. I then went to the system preferences to make the external HDD as the startup disk. I then erased the internal HDD. My iBook was booting up and running at normal speed using the external Firewire HDD.
Last night I noticed the beachball spinning again. It was late so I shut down the iBook. When I tried to startup the iBook this morning , the Apple symbol came up on the screen, and a few minutes later a Circle with a slash symbol across it. The iBook would not boot up. I tried this a couple of times with no success.
I reinstalled the OS on the internal HDD - took about 3.5 hours. I am now working off the internal drive. When I plug in the Firewire drive it shows up on the desktop. When i go to system preference I can select the Firewire drive as the startup disk - BUT when I restart the iBook it does not boot up from the external Firewire HDD. I also noticed that I cannot access my documents, pictures, MP3's on my Firewire Drive when I look through the contents - Did I lose them, or just don't have priveleges??
I am not sure what the problem is and why the iBook refuses to boot up from the external firewire drive. The internal drive still shows the SMART status as failing, and I am not in a position to replace it right away. I need to be able to get my iBook to boot back up from the Firewire Drive.
Please help
Thanks
Vir

I managed to get the problem sorted out.
I first started the iBook from the internal HDD and then went to System Preference to select the startup disk. I selected MAC OS 9 on the external HDD as the start up disk.
The iBook started up from the external Firewire drive using OS 9. OS 9 also showed that the iBook had not sut down properly the last time and verified the disk. Once I got the iBook started in OS 9 I went to the Control panel and then to Startup Disk. I noticed that I had 2 versions of OS X on the external Firewire HDD - one which said "OS 10.x.x previous system" and another which said OX 10.x.x. (When I select startup disk from OS 10.x.x it does not show both these options, only OS 10.x.x) I remembered that when I was reinstalling the OS (as recommended by the Apple Dealer) my settings etc were saved as "previous system". I seleected "OS 10.x.x " not "OS 10.x.x previous sytem" on the external HDD and re-started and it booted up ok.
My question here is - why does this additional startup option show up on OS 9 but not on OS 10? I figure that the iBook was trying to startup from OS "10.x.x. previous system" when it actually should have needed to startup from "OS 10.x.x.". This problem must have occured when I shut down ...
Is it ok to delete the OS X.x.x.previous system folder without losing any data etc??
Thanks
Vir

IBook doesnt boot anymore

Servus alltogether,
I really have a BIG problem with my iBook here. I've installed the Screen Spanning Doctor in order to activate a second screen, and my iBook doesnt boot anymore. It gets to the point with the grey apple and the wheel, and then (using apple+v) there seems to be a problem by loading a file called dyld
dyld:library not loaded: usr/lib/libz.1.dylb
etc/rx line 262 55 trace / BPT trap couldnt find root user usr/sbin /update
I tried to reset nvram in open firmware without any sucess. I can log on in single user mode, but i dont know what i can do now from there.
It would be also very helpfun if soneone could tell me how to mount a external hard drive (I have a Lacie hard drive, perhaps I can rescue my data. Its still there, I checked it in single user mode.) or a usb-stick.
Perhaps it is also helpful when I tell you this: It is a G4 ibook, using the newest patch of mac os x tiger, and my graphic chip is a ati readon 9200 (which should work with the screen spanning doctor but apparently didnt).
I am really in trouble here, because I need this iBook for university. So please help me if you can.

Try starting up from a CD (Apple-C) or in safe mode: http://docs.info.apple.com/article.html?artnum=107393
Either of these methods should get your booted. Then, back up your data! Next, try Disk Utility to fix your disk. You may have to reinstall the OS. Luckily, you have that backup now.

Ibook power module problem

hello everyone,
I'have a short-circuit on my power adapter,
It's burn a diode on the power circuit,
this diode have three pins and its name is 8HC.
This diode is soldered at D1 place.
You can see it on the right top of this picture:
http://www.powerbook-fr.com/IMG/jpg/25-3.jpg
I want to replace this diode but i don't have the real reference, 8hc is just a constructor reference.
Thanks a lot for your help
IBOOK CLAMSHELL M6411 Mac OS 9.2.x

Hi Jeff,
First and foremost let's find out the reported health of your battery.
Go the Blue Apple at the top left of your screen, then 'About this Mac'. Then select the 'More Info' button. Click on 'Power' on the left. Then scroll down slightly until you can see 'Battery Information'. Select/copy/paste the info into a reply to my post.
The symptoms you describe indicate that you do need a new battery but with the info requested above we can give a definitive diagnosis.
In answer to your questions:
Q "I've seen the articles and posts about resetting the VMU or whatever it is, but I"m a bit put off by the warning about that wiping out RAM."
A The reference to 'RAM Disk' that you have read is a reference to an archaic facility in, I think, OS 8 and earlier. It is not relevant to OSX.
Q "Is that something I should try?"
A There is absolutely no reason why not.
Q "Is there any danger of losing any files or settings?"
A Other than, temporarily, time and date, no.
Q "Is pulling the battery out and replacing it repeatedly likely to cause damage?"
A Not unless you were doing it while the iBook was booted.
Q "Does this sound like it's just a battery that needs replacing?"
A Probably, but with the info requested we'll know.
Q "Is the fact it started happening immediately after the Firewire migration completely a coincidence?"
A I would think so. Nothing can happen to the iBook during migration that would have caused this, or any other, problem.
You might like to check with:
https://support.apple.com/ibook_powerbook/batteryexchange/main?id=qp
to see if you qualify for a free replacement under the iBook Battery Exchange program.
Good luck and post back.
Adrian

IBook wont boot up past gray screen

my iBook wont boot up past the gray screen with the spinning wheel thing. the wheel will spin but wont go past the gray screen. if anybody knows whats wrong or how to fix it please let me know. i need my computer. and i have no time top take it into the apple store. thnx

Hi, and welcome to Apple Discussions.
Here are links to Apple Knowledge Base articles regarding startup problems:
http://docs.info.apple.com/article.html?artnum=50959
http://docs.info.apple.com/article.html?artnum=106464
http://forums.osxfaq.com/viewtopic.php?t=7269
I hope something there helps.

IBook sometimes boots on battery power

I recently inherited an 800MHz iBook G3 that has been acting strangely. Its internal hard drive was shot (it made loud clicking noises) but I got it to boot off an external firewire HD. The machine works great when plugged in to AC power, but acts very strangely when on battery power. It wouldn't boot on battery power, but if the iBook was running I could unplug the adapter and sometimes the iBook would run for a while and then shut off and other times it would immediately shut off (the battery was 100% charged).
I replaced the internal HD, hoping somehow it would solve my problem, but it didn't. I have done some more experimenting and it seems if I have had the iBook plugged in to AC power for a while (like overnight), the ibook will boot on battery power and run anywhere from 10 seconds to a minute before powering completely down. After that, the machine is completely dead and I have to plug it in to AC power to get it to boot again. Also, when it reboots, the time is messed up. I get an error message that says "Your computer's clock is set to a date before March 24th 2001. This may cause some applications to behave erratically. Please use the ..."
I have reset the PRAM and PMU repeatedly, I have tried other batteries (and while none of them were new they worked in other ibooks) with the same result. I also tried my battery in another ibook and it booted and ran that ibook just fine. Something in my ibook just shuts it down. I get some sort of system halt call in the log file.
I'm at a loss... anybody have any ideas as to what could be wrong or what I can do to fix it? Thanks for the help.

Hey JW.
Well like SU says:
"It sounds like there is a bad connection between the battery and the computer. "
So what I have seen on these is a bent locking tab on the battery lock. I had a few in here like that. I could lift the iBook 1" when it was running on battery and if I dropped that small bit it would shut down. Bending the locking tab back solved the problem. Careful it's fragile.
Also like Rhonda says it could be a logic board problem.
I've seen the super capacitors on the G3s go bad. Typically it's a .22 Farads @ 5.5 VDC. What happens is that the cap blows up (probably due to over filling like in the classic cases of cap failure in the past). It's easy to see since the outer case gets peeled back.
If you're date and time is constantly messed up I'd suspect that. I've replaced those caps with ones I bought from Electronics Goldmine.
Since that cap holds settings on the PMU it would also affect power if there were small transients that could cause you problems. The super cap system is designed to hold settings for around 30 seconds while you change batteries but if that cap is dead it wouldn't hold settings for a millisecond.
Richard

Imac G4 20 inch 512 mb ram 1.25 ghz boot problem

i have a boot problem with my imac when i start it up it keeps on loading forever i have made a video so you can see the problem any suggestions on what the problem could be? http://www.youtube.com/watch?v=yh2jhTf0MHI

Hello, and welcome to Apple Support Discussions!
While I did look at the video you posted, nothing was clearly evident in there;
so you may have to see if it is possible to start the computer from an install
disc, with C key held down, and use Disk Utility in the Installer's menu.
You may be able to see if you can 'verify' the hard disk drive, and if so, it
may be possible to 'repair' the Macintosh HDD. Some kinds of errors may
not be repairable by Disk Utility's tool options; but you could secure erase
the entire hard disk drive, and reformat it, then install a new system if that
may be the only way to make the computer work again.
Though the internal hard disk drive, or other hardware may be behind the
failure to get past the gray start screen with busy wheel, etc.
You may be able to try & see if the computer could start up in SafeBoot
mode, this is usually achieved on a startup by holding the Shift key down
and keeping it held down until you see there is a hint that the OS may work
but I usually suggest to keep the Shift key held down until you see the Login
screen (in Tiger) or a preliminary window appears in Panther, with SafeBoot
in a dialog box. In SafeBoot you can read system Console Logs, to try and
detect a hint of what isn't working, in those reports.
In SafeBoot, if the computer gets that far, it would be running in a reduced
version of OS X and you could also check the computer to see if the
hard disk drive shows up as Verified or passes SMART, etc. You can also
run Disk Utility's 'repair disk permissions' in Safeboot. Generally, after any
use of SafeBoot, you'd restart the computer; or try to.
The computer probably could use more than 512MB of RAM; the total it
can use, is 2048MB or two 1GB chips; each is a different style chip. The
lower more easily accessed RAM slot can use on 200-pin PC2700/DDR333
laptop chip similar to that which the 'mid-2005' iBook G4 uses, by specs.
There is a chance the data on the hard disk drive may be corrupted enough
to not get past the startup point; if you can't get a rise out of the computer
with Disk Utility or SafeBoot, or other localized means, you may have to get
and try to use a version of Disk Warrior on bootable CD; one most likely to
be similar to whatever OS X version is running in the computer.
Also, the hard disk drive may be worn out or have a defect; so due to age
and wear, that may be on its way out. There are several reasons why the
computer may get stuck at that stage of startup. There also are articles you
can find in a search, by using words such as ' Mac OS X gray screen start'
and other different ones, provide other responses. Some can be helpful;
in that owners with similar issues have posted online dozens of times, and
some of them get similar replies. You can test a validity of any consensus.
Without knowing more about the status of the computer, its hardware or
software; its history and use, etc; a reply can only focus on a few items.
• Mac OS X: Gray screen appears during Startup: (10.4/10.5/10.6)
http://support.apple.com/kb/TS2570
• Your Mac won't start up in Mac OS X (Mac OS X 10.3.9 or earlier)
http://support.apple.com/kb/ts1411
Some suggestions include resetting PRAM/NVRAM, among others
Most topics are searchable, and some pages have links within them.
Good luck & happy computing!

K7N2 Delta-L: Strange cold boot problem & solution

My K7N2 Delta-L has a problem cold booting when the vcore is set in the bios at 1.65v of higher. After a cold boot, you get a blank black screen. I noticed that even if you run at default speeds but set the vcore to 1.65v of higher the problem still occurs. There is no problem rebooting however.
I found the following solutions:
1. After you power up and get a blank, hit the reset button.
2. Don't unplug your PC. My PC is connected to a AVR and after I power down the PC I usually turn the AVR off. If i do this, than the computer will have a booting problem if I try to boot it up 30 minutes later or so. Now if I don't unplug it/power off the AVR than everything is fine.
I don't understand why it acts the way it does though.
Does anyone know of any other solutions?

Have you cleared the cmos. If you do be sure you have the power turned off don't move the cmos jumper with the power on.
I found that turning off power at power supply and unpluging, than turning on the computer the fans will spin just a little this drains all the power. Clear cmos 2-3 than return to
1-2 position.
Than plug the power back in and turn it back on, than try the computer again.

Mid 2006 iMac Boot Problem (Since latest firmware update)

I have a Mid 2006 17" iMac. Ever since the latest firmware update in early December, about every other startup I've been having boot problems. After the white screen with the Apple Logo and the spinning wheel it goes to a blue screen like normal, but instead of the 'Loading Mac OS X' white window popping up it stays blue and the spinning loading wheel starts. I've left it loading for quite a while before and nothing changes. I have to do a force shut off by holding the power button. and then I start it up and it will boot normally.
Any help would be appreciated.
Thanks!

Actually, I think it'san early 2006.

1st series iMac G5: Booting problems, kernel panics, waking from sleep...

Specifications of the iMac described: 1.8 Ghz, 1GB, 80GB, 64 Mb Nvidia VRAM, Airport, 10.5.5
Back in August 2004 my dad bought us kids an iMac G5 for ‘family use’. It had a fresh install of 10.3.5 on it and compared to the (1999) iMac G3 it replaced it was amazingly fast.
The iMac never showed any signs of probable issues, until we decided to upgrade to Leopard in January 2008. Initially, this upgrade was only meant to be able to sync with the latest iPod nano (who demanded a newer version of iTunes).
After the installation the first thing I noticed was a high CPU usage, the machine seemed slower than ever and that with 1 Gb of RAM (the minimum sys. req. for Leopard are 512 Mb of RAM). Anyway, then the real thing started, it wouldn’t turn on anymore. We brought it to an Authorized Apple Reseller, the Tech department said the Logic board had failed. The costs of the fix weren’t the worth the computer anymore, so...end of story. The iMac was indeed one of the bad series, although it hadn’t any swollen capacitors.
My dad already made up his mind and bought himself a Macbook. He then told me that if I was able to get the broken iMac fixed, I could keep it. And so, I bought an ‘as-is’ logic board on Ebay. Last weekend I installed it, and it actually seemed to work! Yet, the problems are during the startup: the first thing I see is a screen full with horizontal lines flickering all the time, like an old TV with bad signal. Mostly it won’t boot and I get the message to restart the computer (kernel panic, I got dozens of logs already!). Sometimes it got stuck during booting (grey apple screen with gear in the middle) making the fans go crazy (after a while) and sounding what others describe as a ‘jetliner taking off’ sound. Sometimes the screen remains black. Generally it takes me 5 to 10 minutes to start up properly. Maybe it’s just me but it seems like when the computer has warmed up a little (by turning on and off on and on) starting up gets smoother. I mean the startup screen suffers from less horizontal flickering lines.
During the use of Leopard, I again get high CPU usage, especially when I use multiple programs at the same time, or when starting multiple programs. My iStat Pro said once that the fans were running at 4700 rpm and the heat of the CPU was about 70 Celsius. If I really want to **** my iMac off I should play a racing game. That just totally freaks him out! These problems could probably be solved by adding more RAM. Right?
The iMac also has a sleep problem. Sometimes after lets say an hour or so, you can’t get it out of sleep mode (by manipulating keyboard and/or mouse, the sleep light stops, but the screen stays off --> only solution is to restart). What happened to me once was that it slept so long that it just got into a deep sleep by turning itself off completely!
Here’s a list of what I tried so far:
- Disk Utility: Resetting the permissions, no problems were found.
- Resetting the SMU, both on the logic board itself as by pressing the power button 5 - 8 seconds, no improvements.
- Resetting the PRAM, no improvements.
- Did the Hardware test of the original install CD, nothing was found, all good.
- Did Archive and Instal, this actually messed my system entirely, cause it wouldn't boot at all and when starting up from the Leopard installation DVD it wouldn't recognize the Macintosh HD.
- Did Archive and Instal with the original disks, this disk did recognize Macintosh HD and so I installed the original system, 10.3. Booting problems and those flickering lines are still there though.
Next phase will be erase and install, but first I want to know what you guys think about all this.
Oh eh, One more thing; The guys at Applecare (phone support) told me that the replaced logic board was also out of warranty and so they couldn’t help me. But as the man on the phone was kind, he told me to go look for a special ‘driver’ on the net. He said that the driver should be able to resolve some of the issues described. He said that I had to give in the name of the LB on google and look for results. Is this bogus? Because I haven’t found anything useful on google so far. What’s the name (rather than a number) of the LB in the first place?
I hope you guys can give me some answers. I'm kinda desperate. But I still feel there's hope...

The symptoms of a flakey power supply are sleep problems and you have done all the right things as far as resetting the SMU and PRAM. Your CPU usage can be tracked by going to Utilities>Activity Monitor - look and see what is hogging the memory. The flickering lines could also be an optical system going south.
The other thing you can do is run DiskWarrior or TechToolPro to see if you have corrupted directories. Preferential Treatment will let you check for corrupted preferences.

MSI P45 Neo-f with intermittent boot problems

Current system:
*CPU: Intel core2duo 4300 1,80GHz
Mobo: MSI P45 Neo-F LGA775
*Memory: 1 Kingston 1GB PC2-5300 667MHz DDR2 and 1 Dane-Elec 1GB PC2-5300 667MHz DDR2
Videocard: Club3D Nvidia 8800GT 512MB GDDR3
*Hard drive: 120GB IBM deskstar 7200rpm Ultra-ATA/100 (yes I realize it is known as the deathstar, but it hasn't failed so far, I do back-up because I'm paranoid
PSU: Real Silent Nexus NX-5000 500 watt
*Soundcard: Soundblaster Audigy
OS: Windows XP home, service pack 2
*Lite-on IT dvd-rom drive
*floppy disk drive
I also have 3 case fans spinning away in a marginally large Chieftec Dragon tower.
The parts I marked with an asterisk (*) are parts that I removed from my old rig and re-used.
I'll try to give a clear rundown of my problem and the steps I've taken so far.
3 days ago I acquired the P45 Neo and installed it into my system, together with the 8800GT videocard. I was still using my old PSU, a Chieftec 360watt. This PSU served me well for 7 years, but it was starting to build up noise while trying to keep up games on my old rig.
I had some trouble getting the system to boot, I tried changing some of the 4 pins wires going to the hard drive and the dvd drive. I don't know if it was luck or if I managed to divide the load properly for the system to boot. But I succeeded into booting up, got into the bios and eventually installed WinXP.
As soon as it was time to install the videocard drivers, it stopped responding. I assumed it was a power issue, since I could only install the 20pin and 4pin cpu, but my Chieftec PSU didn't have a 24pin plug to the mobo - and it needed replacing anyway! So I bought a new 500watt PSU that had all the required plugs and more wattage.
I installed the new PSU, checked every connection and pressed the power button. 'Lo and behold, the computer starts up. I install the videocard drivers and it proceeds with no problems. I try to install the soundcard, but the cd says I don't have one installed. I fix that by going to the System list and install the drivers from there. I install a firewall. By then I have successfully rebooted the computer 3 or 4 times. I decide all is well and turn off the computer. But I realize I wanted to check up something on the internet.
I press the powerbutton. The PC power light go up for just a fraction of a second. I can see the blue LED of one of the case fans switching on just as briefly - then it goes out. The computer keeps trying to turn itself on. It looks like it's hickupping to try and boot!
I turn off the PSU power on the back-side because the computer keeps trying and wait for a bit. After 10 minutes, it still doesn't work. I leave the computer for a bit and return an hour later. The computer then starts up with no problems. I turn it off after a few hours, do a reset, start it up, no problems. But then the next day it happens again.
It's pretty tough figuring out what the problem is because it looks..almost random. I considered it could be a heat issue, but sometimes it *does* start up just after it's been turned down. Checking the bios shows no strange temperature shifts.
Hope anyone can help me, because I do not want to go back to my old Asrock mobo

While powered down I cleared the cmos data, removed the Dane Elec DDR2 module and set the bios to optimized defaults. Computer restarted to WinXP with no problems (it has been off the whole night). I shut down WinXP, wait a few moments and then turn the computer back on. Alas, it won't start and starts hick-upping. I turn power off at the PSU again, so it stops.
Now I try switching out the Kingston module instead. By now the computer has been off for 10 min (while I write this entry on laptop). I press the power button on the PSU and then the power button on the front. There is a short pause, lasting a second. The computer turns on, longer now, but it only lasts 2 whole seconds before it turns off again and goes on again (I believe now you can call it powercycling). It repeats this process until I shut off the PSU.
I check to see if I have installed it properly and try again but it starts powercycling again.
15 min pass, I put the Kingston module back in, press the power button and voila, this time it does start. WinXP shows up, no problems. I leave it on for a bit and then shut down. And when I press the power button again - the feeling of dread returns, when it starts hickupping again.
I'm going to see if I can install one of the memory modules from my housemate. Then hopefully tommorrow, I'm going to try if I can test a different PSU, since I see someone else on the forum - who recently posted, has the exact same power supply and also has boot problems, coincidence... or not ^^;.

I have an early 2008 Mac Pro, which has re-booting problems. Also what does the spinning beach-ball indicate?

Hi, I have an early 2008 Mac Pro which has re-booting problems.
Processor speed is: 2.8
Memory: 2GB 800 MHz DDR2 FB-DIMM
2 x 28GHz Quad Core Intel Xeon
I am running OSX Yosemite Version 10.10
My Mac Pro keeps re-booting. Last year I had to replace my graphics card. My original card was the ATI Radeon HD 2600 XT 255MB, and that is what I have now. At this precise moment my Mac Pro is running perfectly, except that it is slow and the spinning beach-ball keeps appearing. I have managed to do some work with the disk utilities, verifying, cleaning and partitioning. Some errors were found and when it was cleaned this seemed to help my Mac Pro to function properly. Although I am able to use my Mac Pro now, from day to day I still experience re-boot problems. Also quite unexpectedly my mac dictionary has an error, it closed itself down and will not open at all, I had the message to say that a report will be sent to Apple.
I have tried starting my computer with an external hard drive fitted via a USB cable, I use for back-ups. This worked and I was able to wipe my hard drive clear and replace all info from the back up I had done only a few days ago.
This worked for a few days and then the same problem started again.
I am beginning to wonder if I need to buy a new hard drive.
If there is anyone who has some answers to help me solve my problem, I would be most grateful.
Robert

When you have the beachball activity, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

Windows 8.1 pro boot problems

I upgraded my OS on a hp pavilion g6-1d73us from windows 7 home premium to windows 8.1 pro and ever since I have had boot problems. I took all the software off since I thought that might be the problem but the boot problems persist. The computer's self diagnosis helps but I still have problems. Is my laptop incompatible with windows 8.1? Windows 8.1 was a download and I still have recovery disks for windows 7. I originally thought the problem was incompatible software but now I am not sure.

Hi @hifive11 ,
Thank you for visiting the HP Support Forums and Welcome. I am glad you have recovery disks for windows 7, smart thinking. I have looked into your issue about your HP Pavilion g6-1d73us Notebook and having issues with the Windows upgrade to 8.1. Here is a link to the drivers page for your product. I do notice there are drivers for Windows 8.The Updates you need for the system are the Chipset. These are located on the driver page link above.
One of the things that can cause an issue is things connected USB. The computer can not load the drivers so it causes an issue. Once the machine is up to date then return the USB devices.
Then I recommended to restore the BIOS to factory defaults.Here is a link to restore the BIOS.
You can do a system restore. System restore will help if something automatically updated and did not go well on the Notebook.
Please note remove any and all USB devices. Disconnect all non-essential devices.
Hope this helps.
Thanks.
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IBook G4 Boot Problem- OS 10.4.11

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