Pc won't boot, on and off again problem

Associate
Joined
30 Dec 2007
Posts
2,054
Location
Oxonfordshire
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
 
Maybe try turning off sleep states in the BIOS as a test and same in windows. See if it does it then if it only does it when it goes to sleep there is some driver that does not like sleep state and when it tries to start up again the driver fails to start and you get that problem. Try also updating all drivers and update the BIOS if their is an update for it.

Have you checked the system event viewer for anything strange ?
 
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
 
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
 
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
 
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?
 
fully built

it could be corrupted cmos due to a crash ect

you'll see a round silver battery on the mb,remove it while pc is powered off,wait 15 minutes put back in and power pc up and see if it posts
 
Ah ok makes sense, I shall put as it was and take out battery while I go make breaky!
 
yeah if you want or just leave it bare minimum,youll need one stick of memory installed though

and psu wires connected,plug monitor into the mb for onboard graphics,or can build it back up,upto you
 
I had this once with a TPM module. All of a sudden the PC won't boot anymore, before the BIOS shows up (older Fujitsu computer).

Thankfully the board had a jumper to disable TPM and the PC came back up.

In this case, the MB cannot read the BIOS any more because it is encrypted and lost its key to decrypt the firmware.
 
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
 
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.
 
try a longer cmos clear first,personally I would return/rma that board and go with gigabyte or asus

sell the replacement msi board,if you've tested without gpu/hdd's/ssd attached then I cant see what the issue is apart from faulty psu or mb
 
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?!
 
was it found to be faulty?

random suggestion, try disconnecting the case power and reset buttons, then use the motherboard power button to turn it on.
 
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!!!
 
Back
Top Bottom