24 Jul
2006
24 Jul
'06
6 p.m.
On Tue, July 25, 2006 1:08 am, Zane H. Healy said:
Never having seen one of these machines, what does it do if the power-OK
signal is not asserted. I could believe (based on experiences with other
machines) that all LEDs are on at power-up, and one of the first things
the CPU does is change that pattern. So if the power-OK signal is
deasserted, the CPU never starts, all the LEDs remain on.
-tony
Does anyone here know what the startup of a Compaq XP1000 (Alpha-based
system for OpenVMS) is supposed to look like?
yup.
powers on, and all 8 diagnostic LED's light
up. There are no beeps, and
there is no video. I've tried to connect a VT420 to the serial ports
If the diagnostic LEDs don't cycle through a powerup sequence then it's
more than likely the mainboard's dead. If the memory's bad you get a 1-3-3