[comp.sys.ibm.pc] Suntac 286 boot problem

hoven@cd.chalmers.se. (Hans-Ove Frimodig) (03/03/90)

I have a 12 MHz Suntac 286 Motherboard. My power supply died yesterday
and when trying 2 different power supplies the Suntac card does not
always boot. The whole screen is white. I have to cycle power off-on
until the screen goes blank and the machine boots. (Reset button doesn't work)
I have tried different things with the Power-OK signal but nothing seems
to fix the problem. My current theory is that the Suntac MB is very sensitive
to Power sequence timing, and that some kind of lock-up occurs often
with certain power supplies.
Do you have any suggestions ??

/Hans-Ove Frimodig
hoven@cd.chalmers.se