Computer starts for a split second an then turns off..

Harishvar

Commendable
Jun 5, 2016
44
0
1,530
This just happens just for the first time...i mean when i switch on the ups and press the power button in my CPU, it starts for a split second and turns off...and when i again switch off the ups for a second and turn it back on and if i press my power button in my CPU now for the second time, now it would turn on normally..i cant understand why this happens???

i also would like to add that i have attached some led strips in my PC for which i have taken 12v power from the same PSU powering the mobo itself so that if i switch on the CPU everything lights up..and also i don't have a GPU in my system..

also this will repeat again if i turn the PC ON the next day or after a long time..for example if i have just turned my PC ON (like the 2 procedure above ON-OFF-ON) used it and then after shutting down the computer, if i turn the PC ON after a few mins. like 15-30, it would turn on normal but the problem starts again from the next day if the pc is kept off for a long time....why is this happening??
 
MERGED QUESTION
Question from Harishvar : "PC turn on for a split second and turns off.."



 
MERGED QUESTION
Question from Harishvar : "PC turn on for a split second and turns off.."