Len Gerstel wrote:
> My home Mac has been running rock solid for months with only rare
> software crashes. My system is a DA with the following:
> OWC Dual 1.2GHz processor
> 1GB (2 matching 512MB sticks)
> Radeon 9600 pro with the pin traces cut
> Firmtek SATA card with 1TB (boot volume) and 500GB
> 120GB Seagate on main ata
> All drives have a bootable OS 10.5 install
> Running 10.5.8 (or whatever the latest is) with all updates.
> 
> This morning got the 4 language kernel panic message to restart.
> Restarted and all was well
> 

> Disconnect the STA drives to force ata drive to boot. get the
> following
> System Failure cpu=0 code 00000001
> BSD Process corresponding to current thread kernel_task
> Panic CPU 0 (Caller 0x000DXE6C) System failure cpu=0
> on restart- Grey Apple with no spinning daisy
> 
> Reconnected SATA drives and hold option key to choose startup drive.
> See 2 of the 3 drives with a restart arrow on the left and an arrow to
> the right (for more drives). Mouse is a frozen watch (old OS 9
> looking) and does not move. No keyboard response either.

That it hung with two different drives and in the boot select screen 
implies it's NOT the software.  Possible problems, in likely order, bad 
memory, corrupt NVRAM or PRAM, wonky devices on any drive bus (ATA, 
SATA,...), wonky PCI cards, motherboard gone BAD, sick processor card.

Try resetting NVRAM (and thus PRAM).

Pull first one then the other RAM cards, booting after each.

In general start disconnecting things, working your way toward the 
motherboard and then boot to test it.

I would boot with the option key held down each time.  It seems to be 
the shortest route to the kernel panic and it doesn't involve the HD 
booting so it's safe to restart at that point if needed.

Keep debugging like this until you get to the point where you can 
disconnect one item and only one item and eliminate the problem.

-- 
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting

"I'm a designated driver on the Information Super Highway"

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