New Build: Computer randomly reboots

  • Thread starter Thread starter Izi
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Izi

Izi

Izi

Soldato
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I have just built:

Intel Core i5 750 2.66Ghz (Lynnfield) (Socket LGA1156) - Retail
Asus P7P55D Intel P55 (Socket 1156) DDR3 Motherboard
Samsung SpinPoint F3 1TB SATA-II 32MB Cache - OEM (HD103SJ)
OcUK 650W Dual Rail High Efficiency Modular Power Supply
Coolermaster Elite 334 Midi Case - Black
Samsung SH-S223C/BEBE 22x DVDąRW SATA ReWriter (Black) - OEM
2 x G.Skill RipJaw 4GB (2x2GB) DDR3 PC3-12800C8 1600MHz Dual Channel Ki

I am now having problems with the machine randomly rebooting.

I have done a memtest and it passed ok.

There is no bluescreen or anything in event log to suggest software/hardware.

Is it the PSU?
 
By randomly rebooting do you mean it boots into windows completely then randomly reboots or you switch on, it lights up then goes off and then reboots completely?
 
Essexraptor said:
By randomly rebooting do you mean it boots into windows completely then randomly reboots or you switch on, it lights up then goes off and then reboots completely?
Click to expand...

Sorry, yes I can get in to windows. Just once in it randomly reboots.

although it did randomly reboot when installing windows also.
 
Hrm, could be a number of things, how frequent are the reboots? If it's stable for an hour or so you could try running Prime 95 for a bit to test cpu stability.
 
It sounds like a instability problem.

I take it that because it's a new build you have not OC anything yet? The only thing I can suggest is that you start up.. go to bios and carefully check through all the settings again. Tedious I know but sometimes a duff defaut setting on that ASUS board will make it fail to boot or reboot if the MB detects a problem. I had the same with my P5Q recently. I only changed one setting and the silly thing would go round in circles until I acknowledged the post message that it was failing to boot.

Doubt if it's a PSU problem because 650watts, which is a good supply for that setup.
 
I think the PSU might be overloading. I've had a similar thing with one of my builds in the past. Try to reconnect things so that you don't have your hard drive connected on a lead that also connects to other things. Try to use as many leads as possible from your PC to connect stuff up.

If your PSU has one cable per connection, though, it might be something else.
 
... So I took my old PSU out of my Q6600 set up and put that in to my new build (its rated at 700W but its a crappy ******s one) and put the OCUK PSU in my old rig.

So far no problesms with either one ... i'll report back if I do.
 
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