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Overclocking I7 950 - Page 5

post #41 of 51
Youll need a better cooler if you want to overclock at all. A high end air cooler or something like an H50/H60/H70.

Im using a H50 with push/pull fans and on a very high ambient (33C) i can do 4.0ghz HT on (4.2 HT off) @ 1.248v and got a highest of 81C on 1 core during IBT
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post #42 of 51
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Edited by Xoriam - 11/10/14 at 9:59am
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post #43 of 51
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Edited by Xoriam - 11/10/14 at 9:58am
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post #44 of 51
Thread Starter 
Quote:
Originally Posted by Ivan TSI View Post
Youll need a better cooler if you want to overclock at all. A high end air cooler or something like an H50/H60/H70.

Im using a H50 with push/pull fans and on a very high ambient (33C) i can do 4.0ghz HT on (4.2 HT off) @ 1.248v and got a highest of 81C on 1 core during IBT
The temps from your system page are about the same as mine at 4,0GHZ with the one I got now.
I'll most likely go liquid.
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post #45 of 51
Thread Starter 
batch number is 3021b361
Edited by Xoriam - 11/10/14 at 9:58am
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post #46 of 51
No match for batch at i7 950 Overclockers Club

No match for batch at Intel core i7 9XX Series batch guide either.

Most people run HT on, unless they are going for a record OC validation.
Edited by alancsalt - 2/24/11 at 10:39pm
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post #47 of 51
Thread Starter 


Edited by Xoriam - 11/10/14 at 9:58am
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post #48 of 51
Actually, it works like this:
Quote:
The lot code identifier and Intel year and workweek the finished product was manufactured can be viewed by referencing the following FPO# guide:

(x)Test Site, (x)Year, (xx)Workweek, (xxxx)Lot Code Identifier

1st letter or digit = Test Site
0 = San Jose, Costa Rica
1 = Cavite, Philippines
3 = .............., Costa Rica
6 = Chandler, Arizona
7 = .........., Philippines
8 = Leixlip, Ireland
9 = Penang, Malaysia
L = ............, Malaysia
Q = ..........., Malaysia
R = Manila, Philippines
Y = Leixlip, Ireland

2nd digit = Year of production
8 = 2008
9 = 2009
0 = 2010

3rd & 4th digits = Workweek

5th - 8th digits= Lot Code Identifier
So your chip was made in Costa Rica in the 21st week of 2010, and the Lot Code Identifier is B361.
Edited by alancsalt - 2/25/11 at 2:35pm
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post #49 of 51
Quote:
Originally Posted by PulkPull View Post
4GHZ will be easy. I had a i7 950 and this is what I used for 4GHZ ht on with an asus sabertooth motherboard.

Turn off all power saving feature. ie EIST, C1E, etc.
Set multiplier to 23 and your bclk to 174
Set cpu volts to 1.28v (may need more or less, all chips are different but 1.28v is a good starting point).
Set your ram volts to the manufacture's specs, don't leave this on auto.
Set PLL volts to 1.8v
Set QPI volts to 1.32v
Everything else you can leave on auto..

Run prime95 small ftt. If it fails you will need to up your cpu volts. If it passes after 8 or so hours, lower your vcore a notch and run prime95 again. Keep running prime95 and lower the vcore a notch until it fails, then bump it back up to the last known good cpu volts. Once you get your known good, lowest stable vcore, run prime95 blend for 24 hours. At that point if it fails, your memory or another component is to blame, not the CPU. Most likely it will pass.

All done, enjoy 4ghz.


I just ordered my second build and I got the Asus Sabertooth as well for a mobo - with the i7 950. I'll keep this in mind when I get my parts. I have a Prolimatech Megahalems (push/pull) config for CPU cooling as well.
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post #50 of 51
I have the d0 revision of your i7-950 and I running 45 43 45 43 Idle Temps at 4.14Ghz at 1.38Vcore 23 multiplier, 180 Bclck 6486Mt/s
    
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