PC keeps rebooting

[Valentin1990]

Hello everyone !
My PC keeps rebooting immediatly after i turn it on or after 5/10 minutes.
I tought it was my power supply so i bought a brand new one and i have the same problems.
Also i didnt overclock anything, and i checked my CPU and Video card coolers and they are properly mounted.
This started happening to me yesterday.

My PC:
Core2Duo E7200
Asus gt440 DDR5
3x1gb DDR2 667
Gybagite GA-P35-DS3L
Power supply: Segotep SG-500A(this is the new power supply i bought)

Could there be some short-circuits on the motherboard ? Or on the turn on/off switch in the PC case?

 

[lonewolf7]

First try it on safe-mode, see what happens. And that is not a good PSU you bought.

 

[Valentin1990]

Now it seems my monitor doesnt turn on when i start the PC and i don't hear the its all ok "BIP"" that happens before loading windows.

 

[Valentin1990]

Ive removed the Video Card and the PC didnt reboot, when i plugged it in again it entered in Windows on first try, now im looking at the pc waiting for it to see if it reboots... What could be the problem ?

After 4 minutes its restarted again...

 

[lonewolf7]

Take out all RAM sticks and start the PC, if its beeping the MB is ok probably, else its gone.

 

[Valentin1990]

First try it on safe-mode, see what happens. And that is not a good PSU you bought.

I can't i tried once but i get on my monitor no signal detected...restarted again and the monitor doesnt even turn on...but just 5 minutes ago the video card worked again and so on...

 

[Valentin1990]

Take out all RAM sticks and start the PC, if its beeping the MB is ok probably, else its gone.

Yeap, the MB is beeping...so what could be the problem...?

 

[lonewolf7]

Try with only one stick of RAM, see if you can get the display. If one doesn't work try another and so on. And you could use the on-board video(VGA) on the back of the MB.

 

[Valentin1990]

Try with only one stick of RAM, see if you can get the display. If one doesn't work try another and so on. And you could use the on-board video(VGA) on the back of the MB.

Ok ive tried every ram one by one, same thing, but i managed to go in safe mode for 5 minutes until it restarted again...
My videocard has 29-30C in idle so i dont think thats the problem.

 

[lonewolf7]

Just try it with your GPU removed. And check your HDD/SSD with : http://crystalmark.info/software/CrystalDiskInfo/index-e.html

 

[Valentin1990]

Just try it with your GPU removed. And check your HDD/SSD with : http://crystalmark.info/software/CrystalDiskInfo/index-e.html

I just removed the GPU and it started rebooting...same thing...Could my MB be failing ?

 

[lonewolf7]

Yes it could be. You can do two things : 1. Bread Board the system 2. Borrow another PSU from someone just to test.