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Uncore help please.

post #1 of 10
Thread Starter 
I have i7 930,rig is in my sig.

My uncore is currently@3690mhz this is using x18 multi.

What would be the max uncore i should use for 24/7?
Are there any risks in raising the uncore? and is it actually worth upping the uncore?

I have tried for an uncore of 3895mhz by upping the multi to x19 but after a few seconds of IBT i get BSOD with error code ending in 0124.

What would i need to be changing in bios to make this stable?
Vcore?
Qpi/vtt?
Cpu pll?
Edited by superj1977 - 1/11/11 at 4:16pm
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post #2 of 10
Thread Starter 
Anyone?
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post #3 of 10
QPI raising will increase stability on error 124, your pll should be undervolted or left alone.
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post #4 of 10
Thread Starter 
Ok,cool,thanks.

So you say that if needed i would use extra QPI/VTT,what benefits if any would there be to using a higher uncore,what risks? and whats a max for 24/7?

TIA and +rep for the help.
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post #5 of 10
Quote:
Originally Posted by superj1977 View Post
Ok,cool,thanks.

So you say that if needed i would use extra QPI/VTT,what benefits if any would there be to using a higher uncore,what risks? and whats a max for 24/7?

TIA and +rep for the help.
Honestly not only are the gains minimal they take so much QPI voltage that they are impractical. On the non-6core i7s the uncore needs to be twice the Ram speed so just set your uncore to twice your ram.

1600Mhz = 3200Mhz uncore, etc...
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post #6 of 10
Thread Starter 
Ok,thanks again for more help

I have another question regarding qpi/vtt and the best wat to run my ram.

I have Kingston Hyxper X T1 2000mhz kit 9-10-9-27.

Im currently running this at 1640 with my cpu o/c @4.3ghz

I have breifly had it configured at 2000mhz with a 4.2ghz cpu o/c but this required 1.51v qpi/vtt,would this be safe for 24/7 or is not worth taking the risk and should i just leave it as it is?

Again,thanks for helping me.
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post #7 of 10
Yes the 1.5volts for qpi is fine @2,000+ mhz. Mine stays at around 1.55volts for 2100+ mhz on my kingston and i have the 8-8-8-24 kit. As the x.m.p will set it to what your board will take to run it. It actually sets mine to 1.7volts on x.m.p. But it runs fine at 1.55volts so i leave it there.
post #8 of 10
Thread Starter 
Yeah i noticed the xmp profile for 2000mhz was wanting to set qpi at 1.7,i was not having none of that,no!

Which would you think would be better to run:

4.3ghz cpu with 1640mhz ram?

or

4.2ghz cpu with 2000mhz ram?

I mostly do gaming on my pc.

Thanks.
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post #9 of 10
Either is fine. The only time you will see a difference in the 1,600 -vs- 2,000mhz will be in a synthetic benchmark. Or some heavy memory intense app. Same thing low timings -vs- high timings deal too. I still like faster mhz then tighter timings on intel though. But to each their own though.
post #10 of 10
Quote:
Originally Posted by KILLER_K View Post
Either is fine. The only time you will see a difference in the 1,600 -vs- 2,000mhz will be in a synthetic benchmark. Or some heavy memory intense app. Same thing low timings -vs- high timings deal too. I still like faster mhz then tighter timings on intel though. But to each their own though.
When timings get above 9-9-9 things get hairy even in regular apps.
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