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C2d 6750

post #1 of 28
Thread Starter 
Hey guys I am having a problem getting my new 6750 past 3.0ghz. I have the vcore set to 1.35 which is what the box shows is max. I see from reading other posts on here that most every one is running them at 1.55 vcore. Can I run it there constantly? I want to over clock to at least 3.6ghz. I am running gskill 800mhz memory at 4-4-4-12 T1 could this be causing the wall?

I also bought some 1066mhz gskill memory to run with this processor but my asus p5n32 sli board doesn't seem to like it (or I got some bad memory) I set the voltage to 2.1 which is the max on the box. It is very unstable with this memory and it only wants to run at 800mhz unless you turn on the sli memory setting then it will register as 1066 but it is unstable.

Any suggestions on these problems?
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post #2 of 28
You could definately increase the vcore. I run at 1.41 to get 3.2Ghz. I can't push at all past that but I'm pretty sure its a power issue for me. Also it's worth noting that you may be far more stable with your ram at 2T.
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post #3 of 28
yea, up the vcore. i run 3.6 at about 1.43
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post #4 of 28
3.6 @ 1.40 volts here. Loosen your timings and ensure that you're running the memory 1:1.
    
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post #5 of 28
Thread Starter 
Thanks guys I will try this tonight and let you know tomorrow.

Any suggestions on the 1066mhz memory problem or should I post that under memory?
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post #6 of 28
uh you can just put all your settings to stock with that ram in it, and run a memtest for awhile.. if it passes i dont know if you will be able to get an RMA
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post #7 of 28
Quote:
Originally Posted by GI_Manny View Post
yea, up the vcore. i run 3.6 at about 1.43
Bout the same here, mines like 1.375 so I round up to 1.44.

I think he should be able to get 3.2 on stock volts....
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post #8 of 28
you can loosen RAM timings to 5-5-5-15 and up the cpu voltage to around 1.43v-1.45v and you should have 3.5ghz easy. i had my RAM at 5-5-5-10 at 2.1v and my E6750 running at 430fsbX8 (3.44ghz) at 1.45v on a 5:6 divider (i think?). it ran very well. though some chips have trouble hitting 3.6 and beyond, like mine. it would not go anywhere above 3.6ghz, but i got it to post. i was happy at 3.44ghz 24/7. never had any problems so i cant complain at all. its a great chip. some chips are winners and can hit 4.0ghz and some are :turd:. luck of the draw i guess.


edit: 3.2ghz CAN be achieved on stock volts, but i couldnt get more off stock. i tested this chip pretty extensively when i first got it.

edit2: i take that back, i hit 410x8 (3.28) on stock voltage. also i had a big typhoon on the their
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post #9 of 28
Thread Starter 
Okay here is where I am now. I pushed the voltage up to 1.45 and left the ram where it was 2.0 volts 4-4-4-12 timmings 853mhz and was able to get the processor to 3.2ghz. I pushed the cpu voltage up to 1.50 the cpu wouldn't go past 3.2ghz. I suppose it pretty much has to be my memory holding me back at this point. I will try the 5-5-5-15 timmings tonight and play around with it over the weekend and update you guys on monday.

If anyone thinks of anything else just let me know and thank you guys your always very helpful.
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post #10 of 28
Memory is not holding you back. I have the same board and CPU as you have I was having trouble getting my cpu stable at 3600@1,55 vcore. My problem was a mondaymorning CPU. So I replaced it with a new one and now im running 3.8ghz @ 1,57vcore.

But even my crappy cpu went to, at least, 3.5ghz. I've used these settings.

Vcore: 1,53v
North Bridge: 1,55v
South Bridge: 1,55v
CPU VTT: 1,25v
HyperTransport:1,25v

I've set my memory to 875mhz and fsb to 1750mhz

I have also replaced my memory for the ones in my sig ( my old ones were 4gb ozc reapers 6400 )

Benny99 helped me out with my problems, wich I still need to thank him for ;P
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