Help overclocking (775 - Q6700)

[d3fu5i0n]

sorry man, it was 3.30am and i was falling asleep so i kinda strayed ot :|

without knowing what the bios is set to at both speeds this is a stab in the dark but if 3.6 is 9*400 and 3.3 is 333*10 i think that you might of just gone up a strap on the nb and that has lost you some performance. as i dont know your board all that well i dont know where the straps are, i dont know where they all are on mine but i do know i have 1 at 500 fsb as i get a drop there from 499 and i need to get to 520 again to get the same performance as 499. along with going up a strap you might of gone up a performance level or 2 on your ram aswell. try seeing what memset says your ram timings are on both and test the memory bandwidth with aida64 or sisoft because this might be a case of where faster isnt always faster.

performance will go up until the board (and ram) needs to drop its timings and then you lose some, now this is like a bottleneck for your cpu as while its working faster it still needs to wait for the board and ram to feed it. if this is the case you could try a lower cpu multi and higher fsb again but that might need you to drop the ram timings to 5-5-5-15 so they can do the mhz you need them to.

its the fine tuning like this that causes the most headaches, as sometimes dropping a couple of mhz can give you better preformance even if logic says it shouldnt. you need to ballance the speed with the latency (for the nb and the ram) to get the best results.

My CPU has a x10 multi - 360BC*10= 3.6GHz

Tallun has a P5Q Deluxe which is essentially the little brother to the Premium. The BIOS is likely to be basically identical. Yeah I know since I don't have a 1:1 FSB to RAM ratio (it's 5:6) it means that for every 5 cycles the CPU does the RAM does 6. Even a 1:2 ratio would be better. It's having to wait for a difficult decimal equation.

Erm, is there some email address that I can direct to? As it's probably a good idea that I take a video or some pictures of the BIOS, and then you can work some stuff out?

Cheers,

Alistair

 

[marsey99]

im bandwidth limited as i use a 3g modem so idk when i would be able to view a video as it costs me a small fortune in data charges atm.

i still think you have gone up a strap, maybe now your on the 333 or just on the 400 idk but you need to test it by checking the mem bandwidth as you go up. its the sucky part of ocing but testing and trial and error are the way to go, talluns board is like yours and his settings will give you a ball park to go from but no 2 systems react the same.

oc.net has a couple of big threads (hundreds and thousands of posts) on the p5q boards, maybe someone has posted where the straps change in those but i know they know your board better than i. im not sure if i can link you to them but i know google will find them for you

 

[d3fu5i0n]

im bandwidth limited as i use a 3g modem so idk when i would be able to view a video as it costs me a small fortune in data charges atm.

i still think you have gone up a strap, maybe now your on the 333 or just on the 400 idk but you need to test it by checking the mem bandwidth as you go up. its the sucky part of ocing but testing and trial and error are the way to go, talluns board is like yours and his settings will give you a ball park to go from but no 2 systems react the same.

oc.net has a couple of big threads (hundreds and thousands of posts) on the p5q boards, maybe someone has posted where the straps change in those but i know they know your board better than i. im not sure if i can link you to them but i know google will find them for you

My vid res is like 90x90 in res (I don't think it should be much of an issue). Why are you on a 3G modem anyway?

If you meant the 'FSB strap to North Bridge' the options are Auto, 200, 266, 333, 400.

I have it set to Auto.

 

[marsey99]

its faster than i can get thru my phoneline and my building doesnt have cable fibreopric

auto makes it easier but at the same time your not sure when it will change. i think you have just left the stock 266 and moved upto the 333 one but it could also be the pl (or trd same thing) has changed as it is also dependant on the fsb and it has a big impact on performance.

having the x10 cpu multi is nice but im not sure its where you will find the best performance unless you run high volts, i would test it out on the 9 or 8 multi with higher fsb as this is what you need to counter this dip you have found yourself in but this will mean changing the ram ratio.

 

[d3fu5i0n]

its faster than i can get thru my phoneline and my building doesnt have cable fibreopric

auto makes it easier but at the same time your not sure when it will change. i think you have just left the stock 266 and moved upto the 333 one but it could also be the pl (or trd same thing) has changed as it is also dependant on the fsb and it has a big impact on performance.

having the x10 cpu multi is nice but im not sure its where you will find the best performance unless you run high volts, i would test it out on the 9 or 8 multi with higher fsb as this is what you need to counter this dip you have found yourself in but this will mean changing the ram ratio.

You know I did say 'EDIT', and the frames are actually a bit better than when at 3.33GHz

But I think for BF: BC2 they should be a bit higher than I'm getting (I do have HBAO (or HDAO, they do the same thing anyway) enabled). That's why I said Crysis went up by quite a lot.

I guess this is why unlocked multi CPUs are nice. Just smack the Multi to WHATEVER you want, and easily get a 1:1 ratio, lower the FSB, and keep heat down and get a better and easier OC.

I'm not planning on getting even a CPU like a 9550 anyway, 775 CPUs are still very expensive at this time; this just means that money should just be saved up for another computer.

The only thing I would change, that Arvutihull recommended me to get is a better heatsink. The temps are brilliant now. But in the summer, they'll go over 60 :/ Way over. Like 30 mins on prime, makes me guess that they'd go over 65C maybe nearly touch 70C