Make sure the voltage slides on the rear of the power supplies is set to the
current in your area. Once a whole shipment of computers all appeared dead
until someone noticed and reset them all to 110, after which they all
promptly booted. If your computers were not in a secure area, you may have
a mischievous prankster, too.
Tom Turak
-----Original Message-----
From: Pullen, Paul (NIA/IRP) [mailto:[log in to unmask]]
Sent: Monday, February 25, 2002 7:23 AM
The computers were originally networked. We have had them apart now, and I
find I am able to fire up the power supplies by connecting pin 14 to pin 15
on the ATX Power supply connectors. The machines still will not boot at all.
There is no post, and the ONLY LED that lights is the one mounted on the
mother board. We have come to the conclusion that we have all eight mother
boards dead. The machines do not turn on any of the front panel lights at
all.
If the machines would work at all, we could reinstall the OS, but with no
response at all, we are dead in the water.
When I got the power supply working on Saturday, a quick check told me I had
proper power from all leads, but still a dead board. When checked, the Power
On lead had 4 volts, but when connected to a ground lead, the power supply
immediately came alive. Still no lights on the front panel, no post. The CPU
fan started running immediately. Nothing else I could see.
What could possibly cause that, and in multiple machines? What are the
possibilities of a run of bad mother boards?
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