Random reboots in new build

Xuerian

Junior Member
Oct 7, 2008
2
0
0
Hi all, thanks for reading this. This window ate my nice long post... grr.


The problem:
I just built a system.
I used a new Motherboard, Ram, and DVD burner. I bought a Q6600 SLACR from here on the FS forum. I used a year-old power supply that has been perfectly stable since day one.
Clocks are all at stock when it reboots, and it doesn't matter if it is under load or not.
There are no errors, no suspicious problems cropping up, just a instant black screen and then it calmly boots again.
It does this about once a day.


The system:
This is the PSU (Obviously the first suspect):
FSP Group AX500-A 500w

The Q6600 CPU doesn't need any introduction
The HDDs are generic IDE drives that worked in the last build.
The DVD Burner is a generic LG drive

It is built on a ASUS P5Q board, with 2x 2gb sticks of G.SKILL PC28000 @800mhz (Default for the board, I'm not regularly overclocking anything yet so I've left them at that).
The video card is a ASUS HD4850 (EAH4850).
The CPU is cooled with a Sunbeam Core Contact Freezer


All PSU leads are connected snugly: 24-pin to the board, 12-pin also to the board, PEG lead and peripherals.

GPU and CPU temps are normal, if not cold.
Reboots don't come any faster when using the included EPU-6 software to overclock and slightly up the vcore on the CPU.

CPU-Z (html, zipped): http://filebeam.com/3662adab3b8dafdb1f0ab3f2fb6388e0
GPU-Z: http://gpuz.techpowerup.com/08/10/25/cbz.png

-------------------------------------

I've looked around, and most problems seem to only happen when overclocking on this board... But I'm not doing that =\... I did see mention of the PEG voltage in a stability fix, but I can't find the page I saw it on.


I've tried drivers, tried seeing when it happens, but nothing adds up.
Obviously the first suspect is the power supply, but I did a bit of research on it when I bought it, and even if it isn't one of the oft-recommended Corsairs, it was listed as a very stable one.
From what I can tell, the second 4-pin lead on the motherboard is only required when seriously loading system.. Am I wrong?


Again, thanks anyone who reads and gives input, if there's any other information you think might help you or I figure it out, ask and I'll try to get it.
 

mpilchfamily

Diamond Member
Jun 11, 2007
3,559
1
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You need a better PSU. That FSP doesn't offer enough amperage on the 12V rails to support the system. If you had a video card that didn't require aditional power input from the PSU then you would be fine with that PSU. Its always best to buy a new PSU whenever you put together a new system. A good quality unit that will suit your needs would be This Antec.

http://www.newegg.com/Product/...x?Item=N82E16817371006

While it has less overall wattage then the FSP its a better quality unit. More importantly it offers more power to the 12V rails then the FSP does and can easaly support your system.
 

Xuerian

Junior Member
Oct 7, 2008
2
0
0
Thanks for the suggestion, seems like a replacement I can drop in quickly. I'll get it ordered soon, but in the mean time, it seems to be fairly stable with the PEG voltage bumped up one step.

I'll quickly admit the power supply is one of the components I know the least about, is there any recommended reading on their impact on the system and how to better pick them?