Is my power supply dying? Can't get stable barton overclock.

[Red]

I have an NF7-s rev2 w/ barton 2500+ (locked). I simply want to OC to 3200+ (change FSB from 166 to 200).

Other hardware:
Enermax 350W PSU
2 x 512 PC3500 Kingmax
1 x Radeon 9800 Pro
1 x 200 gb harddrive
1 x dvd writer
1 x cd writer
4 x Panaflo L1A case fans
1 x 92mm CPU fan
USB Devices: Wireless KB + Mouse, Canon Printer, Visioneer Flatbad scanner, USB Video Camera

Under full load @ 3200+ my CPU was at 43-44 C at stock 1.65V and when I would raise it to 1.75 temps would stay the same.... however, the computer would randomly reboot. Sometimes I would get an hour or so into Prime95 and it would blue screen/reboot and other times I'd be idling in Windows for 5 minutes and it would shut off instantly.

Using ABIT EQ and checking bios PC Health, my 3.3V rail is hovering around 3.28-3.30, my +5V rail hovers around 4.95, and my +12V hovers from 11.86 - 11.92. Is the Enermax finally starting to die? Do I have too much crap hooked up for a 350W? Why is my system stable @ 2500+ with same temps as 3200+ but has random reboots? Thanks!

 

[InlineFive]

1. Your powersupply could be going. If you can try swapping it.
2. It's possible you just got one of the new 2500s that can't make 3200.

-Por

 

[Red]

Anyway to tell which steppings can't hit 3200?

 

[RaNDoMMAI]

yeah not every barton can OC and even if it can, it may not well. my friend has a unlocked one and can only it 2ghz.

Enermax are usually good PSUs

~RaNDoM

 

[Red]

Well, after trial and error, and testing different BIOSes even, I've come to the conclusion that it's chip related.

The most stable performance I can get is 180 x 11 (1.98ghz) @ 2-2-2-6 @ 1.75 vcore, 2.8vdimm. Good enough for my web browsing / occasional homework =)

 

[Dman877]

Not all 2500's do 3200 stable... try lowering the oc.

 

[Lonyo]

Get a Barton-M which is unlocked, should easily be able to hit around 2400MHz, and is fully unlocked (up to 22x on my NF7), then you can sell your old Barton. 🙂