Pc won't boot, on and off again problem

adbp1 · 9 Feb 2014 at 11:22

Had pc on Friday night, fell asleep watching tv show, pc goes into sleep state, now it won't turn back on.
It comes on and off again a second later, I have removed memory,tried each stick on its own, reset bios, removed gpu, unplugged all hdd's except os drive.

Not sure where to go from here! Please help

Ali

adbp1 · 9 Feb 2014 at 11:23

Board is msi z87 gz45
I5 CPU
Be quiet 650 psu
Samsung evo ssd

adbp1 · 9 Feb 2014 at 11:39

Thanks for the reply but unfortunately I can't actually test or try any of that at this stage, the pc won't turn on, it turns off after about a second, I have to remove power supply cable to then wait about 10 seconds before I can insert and give it power again

adbp1 · 9 Feb 2014 at 11:49

Ok I thought I'd try the old paper clip test and pc stays on, I have a monitor connected yes pc doesn't actually turn on, if I remove paper clip it turns off instantly

adbp1 · 9 Feb 2014 at 12:01

wazza300 said:
pop out the cmos/motherboard battery,leave it out a good 15 minutes,put back in and try powering up pc

you will lose any bios/oc setting though as it resets the bios/cmos

This might seem like a daft question! But at what stage should my pc be at? I.e fully built or bare minimum?

adbp1 · 9 Feb 2014 at 12:03

Ah ok makes sense, I shall put as it was and take out battery while I go make breaky!

adbp1 · 9 Feb 2014 at 12:23

Ok left battery out, had breakfast! Put pc all back to normal and powered up, done same as before all kicks with fans and hdd's spinning for around 2 seconds barely then turns off

adbp1 · 9 Feb 2014 at 12:59

Nothing shows up, no beep no flash nothing, just comes on then off and stays off, I had similar when I first built pc and it turned out motherboard doa, when googling more it seems like a lot of people have problems with these boards.

adbp1 · 20 Feb 2014 at 14:24

Ok so now I'm lost, got motherboard back today from rma, rebuilt and guess what? The same happens!
Tried old power supply won't turn on, go back to new power supply it comes on and off again. Old power supply works as checked on old setup.
What do I do next?!

adbp1 · 20 Feb 2014 at 15:15

No report of fault given, just a Bgrade board send back to me. I'm at wits end with this build from day one its given nothing but trouble, on a pc that's less than 4 months old I'd expect it to work! I really feel like sending the lot back and replacing it all!!!