Re: Dead SS20 NetBSD machine

[Erik Fair <fair%netbsd.org@localhost>]

On Jun 27, 2009, at 20:39, Greg Earle wrote:

> [...]
>
> Is it more likely to be the CPU module (it's got a HyperSPARC 125  
> MHz CPU) or a dead motherboard?

In a previous incarnation, my primary E-mail host was an SS20 with 150  
MHz HyperSPARC CPU; one day it died, and hoping that it was merely the  
CPU, I swapped in a spare HyperSPARC CPU that I had around, and, lucky  
me, the system booted again and ran acceptably for some years until I  
replaced it with a Sun Fire V120.

This, of course, is anecdotal, not definitive.

I don't think you have much to lose by trying a different Mbus CPU  
module in your SS20. However, it might be a good idea to check that  
all the outputs of the power supply are up to snuff (you're actually  
getting +5vdc and +12vdc in the right places), before swapping in new  
hardware.

        Erik <fair%clock.org@localhost>