evenstevens

I've seen people clock upto like 3.6Ghz on a 1.4v vCore and I can't even keep 3.2 stable on 1.45V :-\

T D

Luck of the draw :\

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azianai

actually in your case evensteven if you're using the computer in your sig with the stock sink, thats prob one of the reasons.
2nd is you're using a POS motherboard, i've had 4 P5N-E SLI fail on me from asus 2 years ago, absolute garbage boards -_-.

evenstevens

Stock sink on what?

And this "POS motherboard" has lasted me 3 and a half years with no bother. Can't have much fairer than that.

Silverlight

You're also running a 65nm cpu. 45nm cpus generally require less volts to reach high frequencies

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mcastaneda68

Even with the same cpu model & stepping, each individual CPU requires different voltage for different speeds.
Besides, instability can come not only from the CPU. It is very common to have instability issues with your RAM and/or with your Northbridge.

Because fo this, it is important to test CPU first (Prime 95 small FFT), Memory Only (Memtest 86+) and overall system stability (Prime95 blend). You may need to add voltage to your RAM or to loosen it's timings. You can also need to increase NB voltage.

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P45 motherboard selection charts (Gigabyte & Asus)
P55 motherboard specification tables (Asus)

evenstevens

Things is, with vCore set on Auto, I get 100% stability on Orthos and memtest.

With it manually set, I get stability on memtest but not Orthos. ;_;

Gill..

sink is stock heatsink - they're saying you might need better air cooling.

Also on that note, how's your case thermally otherwise - your dated northbridge getting too hot now?

Also, in the 3 years you've owned that board - might be past it's prime...and not ready to OC heavily.

lastly, I'd look at your power supply - should be ok with what you have - but if that's dated too it might be getting funky on those higher clocks... get a larger one to give you more room to play with.

First look thermally, then power - THEN look at what your mobo is doing.... - also update your BIOS if you haven't done that...

AND...look at your RAM clocks, might want to loosen to rule that out

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evenstevens

I have water on my CPU

My NB has a fan on it, hovers around 35 and 40.

Crooksy

Stock HSF

just because the motherboard lasts a long time doesn't mean it's good. Theoretically i could keep a carton of milk in the fridge for 3 and whatever years. Doesn't mean its good

but yeah, each chip is different, requiring different amounts of voltage. this will depend on stepping, model and manufacturing process

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