[geeks] geeks Digest, Vol 182, Issue 17

[Fred Dikeman]

Hi Mark,
Possibly a grounding issue?  Bumping it made something make contact with
something else or the opposite, disconnected the contact.  Brass is a poor
electrical conductor.

Fred Dikeman
Data Instruments, Inc
O   1-770-919-2400
M  1-678-761-3833

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Subject: geeks Digest, Vol 182, Issue 17

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Today's Topics:

   1. Dual Xeon Motherboard - the End of my Tether?? (Mark Benson)


----------------------------------------------------------------------

Message: 1
Date: Wed, 28 Feb 2018 16:20:24 +0000
From: Mark Benson <md.benson at gmail.com>
To: The Geeks List <geeks at sunhelp.org>
Subject: [geeks] Dual Xeon Motherboard - the End of my Tether??
Message-ID: <5e59f184-a801-1a67-f66a-0e5edaf8b72b at gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed

*SIGH*

I removed the board and from the system (was fully working apart from one
suspicious moment when I banged the chassis and it froze, but worked gain
after), and took the board off the mounting plate, added 2 brass stand-offs
to support he weight of the CPU coolers, and reassembled it.

Now the board won't POST. It's failing on RAM initialisation. Sometimes
it'll fail with the problem that the AMB chips aren't communicating. 
Sometimes no POST LEDs show up at all.

I've swapped RAM sticks about and nothing seems to make it happy.

I demounted it and checked it.

= There's no visible damage to the board underside or topside = Two of the
No. 1 CPU heatsink screws were loose (oops)

So now I'm stuck again. All I can think of is a CPU has partially croaked
(maybe overheated?) and swapping them about might help.

Man this is a rollercoaster I wish I'd never got on...

-- 

Mark


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End of geeks Digest, Vol 182, Issue 17
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