Randomly No Warning Reboot

[scarrsir1]

PSU:https://www.mightyape.co.nz/product/500w-be-quiet-pure-power-10/26810456

CPU:i5-4750

Motherboard:Ga-h77m-d3h

Operating System:Windows 7

Ram: 1:4gb g.skill ram stick

GPU:Currently Not Installed


I have had a problem with my computer rebooting without warning and have ran memtests on my ram and its fine also Updating Bios,Reinstalling Windows,CPU Temp Check,Stress Tests but nothing has been able to solve the problem My PSU is fairly new probably about a month and a half old and was purchased from a trusted supplier and is a trusted brand aswell. I need help knowing what the problem is and what needs replacing

 

[Snipergod87]

Edit didn't see the PSU link. That PSU shouldnt have problems running without a GPU installed. Are the reboots random or when it is under load?

 

[scarrsir1]

Edit didn't see the PSU link. That PSU shouldnt have problems running without a GPU installed. Are the reboots random or when it is under load?

They seem to be Random at this point it can run for a few days perfectly fine and Im running games that I know it can run and shouldn't have a problem running but out of no where it will reboots My idle temps are around 30-32 degrees

PS:When a gpu is installed the pc will reboot on starting any game program or exe (apart from google and software apps like Blender,Pepakura,Discord,Skype,Google etc)

 

[Snipergod87]

Just to be sure these aren't blue screens but just system rebooting? When it comes back up does it say Windows experiences an improper shutdown?

 

[scarrsir1]

Just to be sure these aren't blue screens but just system rebooting? When it comes back up does it say Windows experiences an improper shutdown?

These are not blue screens the pc will shut off and reboot and yeah it sometimes tells me that its had problems (dskcheck,choose where to boot etc)