Yesterday, I had to power off our server because of maintenance of the electric grid, ups was getting empty.
When I tried to power on the server it won’t turn on, I have no leds on at all, all is off (power supplies, power backplane, motherboard, front panel are all off)
I have the motherboard with the minimum configuration, only one DIMM and I only have connected the system power connector, the power supply connector from the backplane and the front panel led board connector.
I have tried\checked the following options:
The two power supplies are working I think, I found that short-circuiting pin 1 and 3 off the power supply gives me 12v output on both power supplies.
On the power backplane I only have the pink wire outputting 12V, all others doesn’t output anything.
My question is how to I test the backplane? To see what’s dead, the backplane or the motherboard?
Is there a way like on common AT power sources that just short-circuiting the green + black wire turns on the power source?
Any help is appreciated.
PS: The warranty have expired L
Thanks in advance.
Leôncio Abreu