Dual 2.7 hanging on grey apple screen, fans rev high

My friend's Powermac dual 2.5 exhibits the same boot up symptoms I had a while back with the exact model computer.Hanging on Grey Apple Logo.Here is what is known:
It boots to open firmware.
It boots from the Apple system Diagnostics CD
Firewire Target Disk mode works fine
2 sticks of ram (1GB each Crucial) matched are verified good.
New PRAM battery
Dust on PS and processor radiator as well as other areas, spotless.
Hard drive has plenty of free space (765 GB) of 1TB
OS 10.5.11 on it boots up my mac without a hitch
Permissions repaired, CUDA or PMU switch done several times, Command Option P+R done
Apple Hardware checked out as Passed, on extended test
ASD Passed on all tests although it shows up only processor 0 or CPU 0
Using Original wired Apple keyboard and mouse ( also tried another Original Apple KB and Mouse)
Option key at startup works fine as it allows choice of startup folder (ASD or internal OS HD)
On startup after the chime, the mouse's red led lights up and IMMEDIATELY shuts off as soon as the
Grey Apple logo appears.Afterwards the fans go up.
When it does manage to startup ( a miracle once in 100 tries, notably in the morning) the sequence is that after the Grey apple logo, I would see the spinning gears and at that point the mouse has the red light on and all is fine.At least for a little while untill the curtain to restart kicks in).
While it is booted, temp monitor and iSat pro indicate 2 CPU's of around 58 to 61C each
While it is booted, system profile and activity monitor shows 2 CPU's in action.
While it was booted up, I copied the recent panic logs from console (if that helps any)
There is no leakage from the pump or processor area, there is no flaky green residue at the rear of the processors.
It will not boot up from any OSX G5 Powermac original install discs.10.3,10.4,10.5 Grey screen with apple logo is all I get.
Last time it booted up it stayed on fine for 3 days (power supply must be good) with video rendering, Photoshop.
After 3 days, the display was put to sleep and the HD powered down in energy saver Pref. The computer slept for 3 hours and then the fans went way up and had to force a shutdown.
Nothing is connected to it except the keyboard, mouse.
If the panic logs would indicate a remedy , cure, cause, revelation of some sort, I can post them.
Many are having the same or very similar startup issues with these G5's from 2004 to 2005.
Any suggestions welcomed.

Forgot to mention,
does NOT start up in safe mode ( shift pressed)
Same issue, grey apple logo screen.Fans go up.
I also swapped 3 different but good video cards.
Now that I am here, here is the most recent panic log
Tue Oct 5 22:01:46 2010
Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x000000000D7BD518 PC=0x000000000002463C
Latest crash info for cpu 1:
Exception state (sv=0x3de5fa00)
PC=0x0002463C; MSR=0x00009030; DAR=0x0D7BD518; DSISR=0x42000000; LR=0x000245A4; R1=0x3D8D3E10; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x000245A4 0x00025930 0x000B45CC 0x00073E99
backtrace terminated - frame not mapped or invalid: 0xF0512040
Proceeding back via exception chain:
Exception state (sv=0x3de5fa00)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x4df8c280)
PC=0x956981D8; MSR=0x0000F030; DAR=0x10A6B004; DSISR=0x42000000; LR=0x9569F100; R1=0xF0512040; XCP=0x00000030 (0xC00 - System call)
BSD process name corresponding to current thread: mds
Mac OS version:
9L31a
Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_PPC
System model name: PowerMac7,3
System uptime in nanoseconds: 716539033325
unloaded kexts:
com.apple.driver.Apple02DBDMAAudio 2.5.8f1 - last unloaded 5543423391
loaded kexts:
com.hzsystems.driver.CDSDAudioCaptureSupport 1.5
com.AmbrosiaSW.AudioSupport 3
at.obdev.nke.LittleSnitch 2.1.04
com.apple.filesystems.autofs 2.0.2 - last loaded 2537626071
com.apple.driver.AppleTopazAudio 2.5.8f1
com.apple.driver.AppleTAS3004Audio 2.5.8f1
com.apple.driver.AudioIPCDriver 1.0.6
com.apple.driver.AppleFCU 1.3.2b0
com.apple.driver.AppleFan 1.0.10f1
com.apple.driver.AppleTexasAudio 2.5.8f1
com.apple.driver.AppleSlewClock 1.5.2d0
com.apple.driver.AppleADT746x 1.0.10f1
com.apple.driver.AppleTexas2Audio 2.5.8f1
com.apple.driver.AppleLM7x 1.9d0
com.apple.driver.AppleK2Fan 1.0.10f1
com.apple.driver.AppleSCCSerial 1.3.2
com.apple.driver.AppleUSBOpticalMouse 3.2.0
com.apple.driver.AppleHWSensor 1.9d0
com.apple.driver.PowerMac72PlatformPlugin 3.4.0d0
com.apple.driver.AppleDACAAudio 2.5.8f1
com.apple.driver.AppleUSBDisplays 2.0.2
com.apple.driver.AppleCPUVoltage 1.5.2d0
com.apple.iokit.IOFireWireIP 1.7.7
com.apple.ATIRadeon9700 5.4.8
com.apple.driver.AppleVSP 2.2.2
com.apple.driver.AppleThermal 1.0.1f2
com.apple.driver.AppleK2Driver 1.7.2f1
com.apple.driver.AppleHWClock 1.5.2d0
com.apple.driver.AppleADM103x 1.0.10f1
com.apple.driver.AppleMaxim6690 1.9d0
com.apple.driver.AppleI2S 1.0.1f1
com.apple.driver.AppleAD741x 1.9d0
com.apple.driver.AppleFileSystemDriver 1.1.0
com.apple.driver.AppleUSBMergeNub 3.5.2
com.apple.driver.PioneerSuperDrive 2.0.9
com.apple.iokit.SCSITaskUserClient 2.1.1
com.apple.driver.XsanFilter 2.7.91
com.apple.iokit.IOATABlockStorage 2.0.6
com.apple.driver.ApplePMU 2.5.6d2
com.apple.driver.AppleUSBHub 3.4.9
com.apple.iokit.IOATAPIProtocolTransport 1.5.3
com.apple.iokit.IOUSBUserClient 3.5.2
com.apple.driver.AppleVIA 1.5.1d1
com.apple.driver.AppleK2SATA 1.0.4f2
com.apple.driver.AppleGPIO 1.3.0d0
com.apple.driver.MacIOGPIO 1.3.0d0
com.apple.driver.AppleCPUThermo 2.0.0a0
com.apple.driver.AppleMPIC 1.5.3
com.apple.driver.AppleI2C 4.0.0d2
com.apple.driver.AppleK2SATARoot 1.0.5b1
com.apple.iokit.AppleGMACEthernet 1.5.9f1
com.apple.driver.AppleFWOHCI 3.9.7
com.apple.driver.AppleKauaiATA 1.2.1f4
com.apple.driver.AppleUSBEHCI 3.4.6
com.apple.driver.AppleUSBOHCI 3.4.6
com.apple.driver.AppleK2 1.7.2f1
com.apple.driver.AppleSPU 2.5.6d2
com.apple.driver.AppleMacRiscPCI 3.4.0
com.apple.driver.AppleCore99NVRAM 1.1.1
com.apple.driver.AppleFlashNVRAM 1.0.5

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Hi, it does seem like the HD is a goner.
For internal Storage options see this...
http://tinyurl.com/ygtbaan
For external get FW/800...
http://eshop.macsales.com/Search/Search.cfm?Ntt=firewire%20800
Once you get a new Drive installed...
If DiskWarrior can't fix it, you might try Data Rescue II...
http://www.alsoft.com/DiskWarrior/
http://www.prosofteng.com/products/data_rescue.php
(Has a Free Demo to see if it could or not, but you'll need another drive to recover to).
Or FileSalvage...
http://www.subrosasoft.com/OSXSoftware/index.php?%20mainpage=product_info&productsid=1
to recover what you can.

G5 wont boot past grey Apple screen and spinning cirlce

I cam in to work this morning and found my Mac on with fans blazing the the display just showing the grey Apple screen and spinning circle. I have it set to turn on before I arrive at work and it has been doing so flawlessly for all the years I've had it. When I shut down last night everything was working fine. Now this.
I've scanned some help forums but can't quite determine what the cause might be. Old battery on the memory card, a bad memory chip, ...I'm not sure.
As I said, things had been working flawlessly for years.
I've tried unplugging and re-plugging in the power cord (nope), resetting the PRAM (didn't work), Pressing the PRAM button on the memory board (again no), resetting things from Open Firmware (Using these commands: reset-nvram, set-defaults, reset-all -- no luck)and now have Disk Utility repairing permissions from the install DVD. That doesn't seem to be doing anything, it has been "Determining correct file permissions" from my startup disk for about 20 mintues now...usually it goes a lot quicker.
Any thoughts? This is my primary work machine and if I can't get it running I'm dead in the water. I'm accessing these forums from a PC in the office and would rather not have to, hahah.
Thanks.
(also, when running permission repair, do you repair the volume or the primary disk? I'm repairing the named sub-volume of the hard drive.)

(also, when running permission repair, do you repair the volume or the primary disk? I'm repairing the named sub-volume of the hard drive.)
I repair the hard drive that contains the Startup volume, unless multiple partitions are present.
In that case, only the startup volume.
Rather than "repair permissions", "Repair Disk" is what you should run on the startup volume.
Troubleshooting:
http://support.apple.com/kb/TS2570
http://support.apple.com/kb/TS1417
Reseating the RAM and graphics card may also be helpful.
If you get the machine started again, install Applejack for future help:
http://applejack.sourceforge.net/

Another G5 iMac won't boot past grey Apple screen!! HELP!!!

Last night I tried to put my iMac to sleep. it took about 3 times, and it finally went to sleep. Today I tried to wake it up but I got the little spinning disk, and it would not wake up. I could not restart it from the screen, so I pulled out the power cord as I have had to do a few times in the past with no problems. Today when I plugged it back in it got to the grey Apple screen, but no little progress circle. I waited & waited, nothing happened so I cycled power again. This time I got the progress timer circle, but again after about 20 minutes nothing happened. I then put the install disc in and booted from that. Tried verify disc, but it failed saying it could not un-mount the volume. Tried verifying permissions, but it seemed to get stuck with just a fraction left on the progress bar, so I quit & tried again (basically where I'm at now). I have also noticed that if I choose the "start up disc" (while running from the disc) the only thing that shows in a network icon. My HD does not show up as an option. For about the past 5 months I have noticed my HD has been a bit noisy. Kind of a whirling sound that seems to get louder then quiet down & repeat....not real loud, but loud enough so I have noticed it. I have been worried that something like this might happen.
update: while repairing permissions I just got a "Disc utility error" says Disc utility has lost it's connection with the disc management tool and cannot continue. Please quit and relaunch Disc Utility. This is the same message I got the last time I tried to run it. I also have an OSX Leopard install DVD...should I be starting from that disc, or the install disc that came with it? If I should be using the newer disc, how would I get the other disc out of the machine?
So....am I up the creek with out a paddle, or is there anything I could try?
any advise would be greatly appreciate as ALL my data is on my iMac and not this POS PC I have to use now.
Thanks,
Jeff

Using Target Disk Mode is an excellent, idea, you should be able to drag your data on to the new machine.
Let us know how you made out,

My Macbook Pro will not load past grey Apple screen...

Last night my Macbook Pro froze so I closed it and went to bed. Today when I opened it, it was still frozen, so I held down the power button and rebooted it. It got as far as the grey Apple screen with the spinning wheel and will not load any further than that. I've rebooted a couple times since and it continues to do the same thing, stays on the grey screen forever.
I searched this problem on the Apple Support Communitites and none of suggestions (holding Shift after the startup tone, holding Command+R) have worked so far. Is there any way to fix this problem without losing my data or having to pay to talk to Apple Support? PLEASE HELP! :(

Zzoozu wrote:
None of that made sense to me or helped me. Anyone else? Maybe someone who has answers dor someone not a computer genius?
Then we can't help you as we need you to be able to help yourself and the instructions are complicated and long to paste here over and over again for the same proceedure.
Hire the services of a local Mac computer repair before you delete your data by accident.
You can jump down and do #8, that might clear the issue right away, but some programs are not going to work and require updating or reinstalling again.
..Step by Step to fix your Mac

Dual 2.7 hanging on grey apple screen, fans rev high

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