PC runs for a few seconds then shuts down?

[LolMaD]

Hello,

Me and my friend just finished building our PC and when we start it up all the fans go super speed and then shutdown, then this repeats. We have checked all the connections and they are fine. The mobo is not touching the case either! Any ideas?

 

[thomasd221]

Could be a faulty PSU, try a different one?

Also, can you give me your specs??

 

[smorizio]

sounds like a power supply issue or the mb cant set the ram speed right and is in a reboot loop. check to see if the ram you have is on the mb qal list or been tested by the ram vendor.
also if it an asu mb check that the bios is up to date..a lot of the new bios fix ram issues. (use the usb flash back if it has it)

 

[LolMaD]

Could be a faulty PSU, try a different one?

Also, can you give me your specs??

Specs are

CPU: CORE i5 3450
MOBO: GIGABYTE H77M-D3H
RAM:4GB SINGLE 1333 KINGSTON
HD: 500GB SEAGATE BARRACUDA
GPU: GTX 560se GAINWARD
OD: SATA DVD SAMSUNG
PSU: themaltake oem
Fan: COOLERMASTER SICKLEFLOW CASE FAN 120MM

Sorry if editing is bad, im new

and its my mates PC, i already built my own and had the same problem.

 

[smorizio]

start with removing the gpu and see if the mb post fine with just the onboard video. if not see that the ram is a 1.5v unit and been tested to work on that mb. if you have to breadboard the mb and power supply and see that there nothing shorting out on the mb. if the ram on the mb guild or the ram vendor guild. power down and check under the cpu for bent pins or a seating issue with the cpu.

 

[batuchka]

I am really worried about that OEM TT PSU given how the TR2 was received @@ Ditch the discrete GPU, clear CMOS and boot via the IGP as suggested above? Reseat and/or change to a different DIMM slot for the RAM as well