[Techtalk] AlphaServer "Processor Detected - Uncorrectable ECC error"

[H. Peter Anvin]

david at lupercalia.net wrote:
>>
>>>Processor Detected - Uncorrectable ECC error.
>>
>>Typically a memory problem - have you tried rebooting? It COULD be 
>>a transient problem - power glitch or similar scrambling a few bits - or a 
>>faulty piece of RAM. If it does the same after rebooting, try removing 
>>half the RAM (assuming you have more than 1 bank fitted!). Then try the 
>>other half. If it works with one but not the other, you've almost 
>>certainly just got some faulty RAM; otherwise, suspect the 
>>processor/chipset...
> 
> Yeah, I've tried that multiple times. I wondered if ECC was my clue it
> was memory. I'll try removing memory banks (there are 4 64M RAM cards)
> and see if I can get it booted that way.
> 
> BTW, I set up my spare server, so I can get mail at the usual address
> again.
> 

To me it looks like there is an ECC error in the *caches*, not in main 
memory.  This effectively means the processor is dead.

	-hpa