i7-860 & ASUS P7P55 LX

ashm8

ashm8

ashm8

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Joined
18 Oct 2013
Posts
6
Currently overclocked this from the standard 2.8Ghz up to 3.8Ghz, just wondering whether you guys can see anything I should/could change to improve it. I am using a Corsair A70 cooler, 16GB Kingston HyperX Black RAM.

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I'd manually set the IMC Voltage. Auto tends to over compensate and it can make a big difference to the heat levels.
 
Do you actually need that much vcore? 1.35v seems high for 3.8Ghz. My old i5 760 in my Asus P7P55D-E Pro only needed 1.285v for 4Ghz. Have you tried 20x200 at 1.35v? That would get your ram up to 1600mhz as well. Try to get the voltage lower if you can.

I know mine was a i5 760 but my settings for 4Ghz were:-

BCLK 20x200
vcore 1.285v
IMC 1.16250v (may need a tad more if running 4x sticks of ram)
CPU PLL 1.8625v
PCH 1.0875v
 
pastymuncher said:
Do you actually need that much vcore? 1.35v seems high for 3.8Ghz. My old i5 760 in my Asus P7P55D-E Pro only needed 1.285v for 4Ghz. Have you tried 20x200 at 1.35v? That would get your ram up to 1600mhz as well. Try to get the voltage lower if you can.

I know mine was a i5 760 but my settings for 4Ghz were:-

BCLK 20x200
vcore 1.285v
IMC 1.16250v (may need a tad more if running 4x sticks of ram)
CPU PLL 1.8625v
PCH 1.0875v
Click to expand...
I'm pretty sure I tried 20x200 at 1.35v and couldn't boot into Windows. Might have something to do with the IMC though? I will try your settings when I get home. Thanks!
 
pastymuncher said:
Do you actually need that much vcore? 1.35v seems high for 3.8Ghz. My old i5 760 in my Asus P7P55D-E Pro only needed 1.285v for 4Ghz. Have you tried 20x200 at 1.35v? That would get your ram up to 1600mhz as well. Try to get the voltage lower if you can.

I know mine was a i5 760 but my settings for 4Ghz were:-

BCLK 20x200
vcore 1.285v
IMC 1.16250v (may need a tad more if running 4x sticks of ram)
CPU PLL 1.8625v
PCH 1.0875v
Click to expand...
Just tried:
BCLK 20x200
vcore 1.35
IMC 1.20 (can only go in increments of 0.05)
CPU PLL 1.90 (can only go in increments of 0.10)
PCH 1.15 (can only go in increments of 0.10)

Blue screened before even getting to the Windows loading screen.

Now using:
BCLK 20x200
vcore 1.30
IMC Auto
CPU PLL Auto
PCH Auto

I'm booted into Windows but Prime95 blend tests stop with errors instantly. I remember now, this is what happened before and is the reason I went back down to 3.8Ghz.

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Update: Blue screened on these settings after about 5 minutes of light usage. :P
 
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The vcore set in BIOS doesn't really mean anything until you look at the CPUZ voltage readings at full load, depends if you have vdroop control on or not.

Mine in the BIOS is set at 1.275v ish, but under full load its about 1.33v. You'll probably need the eventual voltage to be around the 1.3-1.35v mark.

I've been running 4 x 2Gb sticks with no problems, try upping the IMC voltage to 1.3v.
 
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