Intel Duo Core E6300 --> Crappy OC?

T

tgzo

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Jun 16, 2005
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Hi, I have recently built a new system with E6300, BFG GeForce GS 7900S, Corsair TwinX PC-5400, and ASUS P5B mobo.

Using retail stock cooling, I tried overclocking the CPU from 1.86GHZ to 2.1GHZ (7x300FSB) with no problem, however, Prime95 torture test indicated problem when I tried to up the sucker to 2.33GHZ (7x333FSB).

I did not try go higher with the FSB because I wanted to keep it in synch with my RAM which is 667MHZ.

I'm quite disappointed with the fact that my chip can't even fully pass prime95 @ 2.33GHZ when other E6300 owners can hit 2.5GHZ to 3.00+GHZ easy with everything stock.

Does anyone have any idea as to what might be wrong? My CPU is about 43C-45C with no load and 52C-54C about 20 minutes with prime95 torture test.

Thanks a lot!
 
did you try running stock fsb at 2:3 divider? to see if its your RAM..

could also be you need more vcore, but i doubt it at 333fsb..

i have a p5b-e w/ e6400 and I didn't have to change the vcore till 375fsb.

and I didn't need more than 1.9vdimm till after 350fsb.
 
You also have to remember that not every chip can overclock as well as the next. You might have gotten the dud chip of the batch.
 
Here is what I would do. DISABLE all the cpu extra stuff like virtualization, EIST, etc...... Raise your Vdimm to 2.1v (I think that is the max your board does right?) and leave your Vcore to stock (1.325) DO NOT LEAVE IT TO AUTO! I beileive that once you raise your Vdimm up, your ram will scale alot more. Also, keep in mind your memory timings. I would put them to 5/5/5/15 to start with, and once you achive your goal for an OC, start to tighten your timings at that point. Good luck,
 
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