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First Try OC i7 920 with MSI X58 Pro-E

post #1 of 11
Thread Starter 
I picked up a smoking deal on CL for a slightly used i7 920 IBUYPOWER rig with 22" 1080 monitor for a cool $1000. It was already OC'd to 3.2, but got wiped when I did a bios update yesterday. :bonk:

So i jumped in and had to crash course OC'ing with the aid from some great articles I found here on the forum.
Especially the discussions here http://forum-en.msi.com/index.php?topic=128637.0
and here http://forum-en.msi.com/index.php?topic=134941.0

I followed along the some of the steps listed above and increased all the way up to 3.8-3.9 ghz stable. http://valid.canardpc.com/show_oc.php?id=1234817
Anything above that im not to comfortable with (yet).



Idle

Load


Settings:
BCLK 181 @ 21
Vcore +.030 aprx 1.256
Mem Voltage:1.60
Mem Ratio: 4
Mem Freq: 1448
Uncore Ratio: 10
Uncore Freq: 3620
Tips from article: http://forum-en.msi.com/index.php?topic=128637.0


My questions are how to get the mem up closer to the 1600 from 1448? If i increase the Mem Ratio to 5 then it bumps to 1880! Im not to sure how to increase further without increasing the BCLK further. Im stuck on this point.

Other concerns is the IOH: 80c at idle and 85c under load. :undecided:

Please post any thoughts on my first attempt....Cheers!
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post #2 of 11
You can loosen timings (of your memory) and try to run the 1600 @ 1880

Else 19 multi and up the BCLK
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post #3 of 11
Yeah I think max voltage per Intel on mem is 1.65,so you may be able to keep your timings and run 1800 with more voltage.
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post #4 of 11
1.32V seems a bit high for the vCore. Most of the 4GHz OCs I've seen are within 1.22-1.30V. My friend's D0 does 4.011GHz at 1.27V.
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post #5 of 11
It looks more or less like mine right now, only difference is im running 191 for BCLK x21. And loaded temps is about 1 degree higher than yours. But for voltages its about vcore of 1.31 load, and 1.38 on idle. Im trying to configure it so Turbo Boost would be enabled, so far I have been met with plenty of headache. So keep tweaking, im still stress testing this new set up. I only hit 80c on my IOH when I was using a bclk of 200, get a fan in there and move some heat away from it.

http://valid.canardpc.com/show_oc.php?id=1235161
Edited by DarkstarX10a - 6/10/10 at 11:33am
post #6 of 11
1.32V for a D0 920 at 4Ghz is quite high I think. Most D0s should be at about 0.1V lower than that at the same 4Ghz. Even my crappy C0 is at 1.31 at 4Ghz, although HT is off...

The x21 multiplier is more stable than x22 I think. Why don't you try 191 Bclk with the x21 multiplier, and lower the vcore until you get stable? That would put yr RAM at 1533Mhz which will allow you to tighten the timings.
Edited by Zammo - 6/10/10 at 11:37am
    
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post #7 of 11
I paid for HT im keeping it on
post #8 of 11
Quote:
Originally Posted by Zammo View Post
1.32V for a D0 920 at 4Ghz is quite high I think. Most D0s should be at about 0.1V lower than that at the same 4Ghz. Even my crappy C0 is at 1.31 at 4Ghz, although HT is off...

The x21 multiplier is more stable than x22 I think. Why don't you try 191 Bclk with the x21 multiplier, and lower the vcore until you get stable? That would put yr RAM at 1533Mhz which will allow you to tighten the timings.
i agree, i7´s like odd numbers
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post #9 of 11
Thread Starter 
[QUOTE=Redwoodz;9642001]Yeah I think max voltage per Intel on mem is 1.65,so you may be able to keep your timings and run 1800 with more voltage.[/QUOTEt
Thanks for the tip, Tried it, got the BSOD at boot.
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post #10 of 11
Give the CPU 1.35v or 1.4v and then 190 mhz on FSB x21
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