17 Jan
1998
17 Jan
'98
3 p.m.
John Higginbotham wrote:
I was putting together this system the other day at
work, got everything
setup, turned it on, and it was fine. But when I hit reset or power down,
I
can't get it to come back up at all. The hard drives would init, the
cd-rom
drives would power up, but nothing would come up on screen, no memory
check, etc. I could then reset a few times and it would eventually come
up.
One of the problems with the older switching power supplies used on the IBM
and clones was the "power good" line (2nd from the end furthest from the red
wires.) If it didn't come up, the motherboard would not fire up and sit
there waiting for that line to tell it that the power was okay. Other
wierdnesses occurred when the line went true before the power supply was
truely up to spec. On one unit, I used to have to hold in the reset button
while turning on the computer in order to get it to fire up properly.