Not sure how many of you are into the OC stuff but here's a shout. I've just bought a new pile of kit to build a new rig, consisting of a q9450 cpu and a radeon 4870 gpu to handle the eyecandy, combined with 4g of high bandwidth ram and vista ultimate 64bit.
The first OC (all on air) was painless, from 333 fsb to 400. Everything fine, benches fine, runs fine. Same again with 450 and even 475. Staggering really, this was now running at 3.8g instead of 2.6g! At 485 I can boot to windows and operate stably but it failed running crysis so I'm retesting now at 480.
But my questions were more about the cpu voltage etc. I'm using an ASUS PQ5 deluxe mobo to get the most out of everything. I had left the voltages set to auto (except ram set to 2.1 which it's spec'd for) but I found the cpu had been auto set to 1.39 at 1 point so I've now set cpu voltage to manual and put it at 1.36 which is the highest rating given by intel I can find.
I'm curious though if I'd be better leaving it on auto - so that when the downstepping occurs to underclock it while it's not being used fully, it will (possibly) lower the cpu voltage too ather than keep it maxed at 1.36. But maybe it doesn't change dynamically so might aswell leave it at 1.36? I'm not sure about it all as I've never needed to tweak voltage to maximise OC'ing before, even on this P4c 2.4g to run at 3g back in the day
My friend suggested loosening the ram timings or setting ram voltage to 2.2 might stabilise it at the top end of 4xx fsb? I dunno, all thoughts/comments welcome, it'd be nice to just hit 4g and be done with it, though 3.8g quad on air with 3x'C under load and 1-1.3k quiet fan rpm is already an achievement
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Leozack
The first OC (all on air) was painless, from 333 fsb to 400. Everything fine, benches fine, runs fine. Same again with 450 and even 475. Staggering really, this was now running at 3.8g instead of 2.6g! At 485 I can boot to windows and operate stably but it failed running crysis so I'm retesting now at 480.
But my questions were more about the cpu voltage etc. I'm using an ASUS PQ5 deluxe mobo to get the most out of everything. I had left the voltages set to auto (except ram set to 2.1 which it's spec'd for) but I found the cpu had been auto set to 1.39 at 1 point so I've now set cpu voltage to manual and put it at 1.36 which is the highest rating given by intel I can find.
I'm curious though if I'd be better leaving it on auto - so that when the downstepping occurs to underclock it while it's not being used fully, it will (possibly) lower the cpu voltage too ather than keep it maxed at 1.36. But maybe it doesn't change dynamically so might aswell leave it at 1.36? I'm not sure about it all as I've never needed to tweak voltage to maximise OC'ing before, even on this P4c 2.4g to run at 3g back in the day
My friend suggested loosening the ram timings or setting ram voltage to 2.2 might stabilise it at the top end of 4xx fsb? I dunno, all thoughts/comments welcome, it'd be nice to just hit 4g and be done with it, though 3.8g quad on air with 3x'C under load and 1-1.3k quiet fan rpm is already an achievement
_________________________________
Leozack
Code:
MakeUniverse($infinity,1,42);