rhysdalegend

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Nov 28, 2009
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hey guys i built my about 4 months ago and is running great
I7 920
UD4p mobo
ddr3 1600mhz
gtx 285
750 psu

Ok i decided id overclock my i7 one day and when i got my NOCTUA nh-u12p se, there were a good drop of temps

My first oc ended up with bsod
second: computer didnt turn on (reset cmos)

third try was with a program that came with my mobo, easy tune 6, and it had some basic oc choices highest there was 3.2 which i liked, so once i chose that, i checked my temps and i was getting 78 degrees load! so i did some research and checking and easytune had supplied 1.4v's of vcore which i thought was a bit high!

so i went manually
here are my settings
3.2ghz

160*20

BLCK 160
HT: enabled
QPI: 5.76
Perf Inhance: turbo
System mem multiplier: 1280

timings 7-7-7-16
cpu vcore : 1.23750
QPI/Vtt Voltage: 1.175
IOH core: auto
DRAM VOLTAGE: 1.6

my temps on full load (prime) never go over 66 degree's
idle: 38 to 40

are these settings ok? its running stable (well no bsod's etc)

i only plan on going to 3.6
what are some settings for 3.6?

thanks
 

jsrudd

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Jan 16, 2009
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The temps are fine. There's an OC guide that is stickied at the top of the forum. Basically you keep raising your bclk until you get a BSOD and then raise the vcore until you don't. If you get it too high you might have to worry about changing the QPI voltage. If you got to 3.6 you might think about disabling turbo mode and HTT. Your temps will drop by a lot, but of course then you lose the extra logical cores
 

rhysdalegend

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Nov 28, 2009
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Thanks guys for the reply, Now for that sticky note, where abouts is it? Sorry just cant see it. Also Easy Tune setting my vcore to 1.4 is a bit crazy (fro 3.20) isnt that the voltage to be used for 4.0ghz??
 

jsrudd

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Here's the guide: http://www.tomshardware.com/forum/253365-29-core-overclocking-guide

The voltage will vary from chip to chip. I have an older C0 i7 so I don't really know about the newer ones. One thing to consider is that running the i7 at 4.0ghz is incredibly ineffective. Meaning that it takes much more energy than than you save by completely the task more quickly. There was an article about the most efficient i7 speed on tom's a while back