Core 2 overclocking newb.

T

turdhat

Limp Gawd
Joined
Jul 29, 2004
Messages
161
I have been overclocking Athlons for years now and the last Intel chip I owned was a 450 so to say I am out of the loop is an understatment. I have a Asus P5w Dh, Antect True power 2.0 550w, E6600 @3.4/1.4v and 2 gigs of CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) funk daddy ram !! Problem is when I set my fsb to 380x9 (for 3.4ghz) I have ram selections of 760 and 950 as well as higher and lower dividers. Since this ram is rated for 1066 I set it to the closest divider without going over rated speed which is 950 and I get errors after a while in mem test86. If I select 760 I get no errors. Ram is set to spd however I have tried 5-5-5-15 along with voltage adj up to 2.4v on the ram. Disabled hyper path 3, vitualzation crap, speedstep etc.. System is stable for 24 hours in mem test at 3.4 with mem at 760. Am I missing something ?

Thx
 
Another interesting observation.. I cant seem to adjust the multiplyer for the cpu... Hmmm.
 
turdhat said:
Another interesting observation.. I cant seem to adjust the multiplyer for the cpu... Hmmm.
Click to expand...

The multiplier on Intel CPU's is locked, unless you have a Core 2 Duo X6800. Even then it's only unlocked down, not up.
 
i have that same exact ram and cpu, running a dfi infinity 975x/g mobo i can hit 412mhz fsb 3.7ghz, when overclockin 380+ you want to be at 1:1 (533fsb), in the bios set your stock ram tiings and leave the rest on auto (eg, this ram is 5-5-5-15, set that put it at 533fsb and leave everything else on auto, if you have drive stregnt options, set them at 3 ( or the highest you can))
http://valid.x86-secret.com/show_oc?id=133938
after you max out your cpu you can try goin to a ratio other then 1:1 so that you can max your ram, but i found on my setup your not going to get much higher stabily.
 
vcore is +300mV over stock, cooler is a danger den rbx775 1/2" ID water block. you probably wont hit this on air cooling but its something to go by. set your ram in the bios to spd and 1:1 and adjust the voltages as necessary to get the speed you want while watching the temps. go up +5mhz at a time untill it wont boot, step it down 5mhz, up the voltages one step at a time untill it will boot, then up the speed some more, keep repeating untill it gets too hot. worry about maxing out the ram later(that takes some calculating)
 
i have a similar set up, you can adjust the multiplyer on with your mb you just need the new bios. Unfortunatly you can only change it to a lower multiplyer ie 8,7,6. I have dual channel pc2 6400 running just below its max at around same speed as yours currently, which is in fact 1:1 according to cpuz (mem x 2 = fsb). If your memory is taking that big of speed hit why not just try for lower timings. I'm sure your memory could handle that just up the voltage a little. Might make up a little for the speed hit. just an idea. :)
 
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