[CentOS] (OT) Computer seems to have died

Tue Jan 5 03:51:38 UTC 2016
Valeri Galtsev <galtsev at kicp.uchicago.edu>

On Mon, January 4, 2016 6:08 pm, David Both wrote:
> Power supply
> On 01/04/2016 07:03 PM, tdukes at palmettoshopper.com wrote:
>> Hello,
>> I have an old IBM Netvista. Lately, it would seem to go into sleep mode
>> but I have all that disabled. I would have to power off to wake it up.
>> Now I think its done. I can't even get to the CMOS/BIOS. The power light
>> is on but no beeps or anything spinning up.
>> I have two of these Netvistas and had put on away when I upgraded one of
>> the machines. I pulled the HD from it and installed it in the other.
>> Same thng. I'm fairly certain it was working when I updraded. I've
>> swapped out monitors as well.
>> Power supply or hard drive, any ideas?

In my book in the order of likelihood I would list the following:

1. system board (motherboard, meaning the same, but I still consider
"motherboard" a jargon ;-) - likely reasons: leaked electrolytic
capacitors either filtering BUS leads or around CPU, or microcrack

2. Power supply

3. some dead expansion card - remove all you can and try to boot as
minimal amount of metal as you can (swap add-on video card for another if
you don't have on board video chip). I would even disconnect whatever
cables lead to front (and/or rare) panels - some short in them can cause
this too.

4. memory or cpu (main CPU in the socket 0 - the one the things boots on
in multi-socket boards) re-seat memory and CPU if you didn't try yet and
try to boot again. Try to boot with minimal hardware, only one CPU,
minimum RAM.

Good luck!


>> TIA
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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247