[H81M HDS] Multiple Power On Attempts

Please list out your current system specs.

Is the PSU plugged into a power/lightning/surge strip?

Oh.. and an i5 cpu.

K9Sports wrote: Recently, it takes multiple attempts to power on my computer.  Fans won't spin, lights won't turn on, nothing.  It takes about 10-15 pushes of the power button to get it going but works fine after that.  Rebooting works fine too. Changed PSU, same. Unplugged everything except PSU, same. Changed case, same. Only thing I can think of is MB.  Any other recommendations?

K9Sports wrote: 4GB RAM 2TB WD Drive 750w PSU No additional sound or graphics card Plugged into a UPS.  Tested it without the UPS, no change.

K9Sports wrote: Damn.. guess no one has an answer.

You (we) wish there was one simple answer for this problem.

If you changed the PSU, and the PC case, which means a different power switch, all that is left is the board. You could try changing the battery in the board, it is a CR2032, the same on all mother boards.

You could try shorting the two pins on the System Panel Header where the two wires from the power switch are connected, with a small screwdriver. If the board started immediately, that would actually be strange. It would mean either the other PC case has a bad switch or wires, or the other PSU is bad too.

Otherwise it is impossible without test equipment to diagnose the mother board. If the System Panel Header, where the power switch is connected, is loose, you know the board is shot.

Same board, same problem. Totally random boot-ups. Sometimes it works with pushing the button twice, sometimes you have to push it twenty times until it boots.

Edited by sephren - 19 Aug 2016 at 4:55pm