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Intel K Club & Discussion - Page 26

post #251 of 560
This is for 3.97GHz now.

Vtt/IMC is for 1800MHz (2:10 ratio) (8GB RAM)

I am considering lowering the ratio.
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post #252 of 560
@iceboi714

I see, hmm, what I´m getting at is that you might run to much vtt voltage, this also add to the heat.

With a bclk of 180, uncore ~3240MHz and ram at 1800 you shouldn´t need more then ~1,325v of vtt, what do you run?

Have you tried to run bclk 133, multi 30, ram at 1600C7 or C8 and vtt ~1,15 - 1,20 and same vcore as with 3,97GHz or try bclk 200, multi 20, ram at 1600C7 or C8 and vtt ~1,25 and same vcore as with 3,97GHz, just to check what happens with your temp.
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post #253 of 560
@Ghostleader

I will give it a try and keep you posted.

Funny how I need Vtt 1.425 for my EVGA P55 Micro board.


EDIT #1
Well at bclk 200 multi 20 1600 C8 vtt ~1.25. Temps are about the same maybe...1-3 degrees cooler. Not a big significant change. BSOD after 5-6th run on Linx
Edited by iceboi714 - 8/2/10 at 3:02pm
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post #254 of 560
Update, I have yet to OC beyond 3.33 normal and 3.48 @ turbo.

But, I just thought I'd show how nice it is to have a quad-core that can really use the benefit of an OC, even if it isn't 4.0+Ghz.

Here's a few video encoding at a high bit-rate @ 720p

post #255 of 560
Quote:
Originally Posted by cory1234 View Post
vtt?
Sorry for the late response, SC2 has been keeping me pretty busy

VTT @ 1.35
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post #256 of 560
I tested some more with 8Gb of ram at 2000C8 and at cpuspeed 4,2GHz.

I ran 25 loops of LinX, you can check it out in post229, sure LinX is one thing but I thought, can the IMC still make it with 1,3647v through Prime95 and HCI Design Memtest, lets find out.

Here´s the most important bios settings for 4,2GHz, 8GB at 2000C8 (UnCore ~3600MHz)
Code:
Maximus III Formula Bios 1704

HT       On

CPU Ratio         21

BCLK Freq  200
PCIE Freq  101
DRAM Freq  2000
QPI Freq  auto

CPU Clock Amp  1000mv
PCH Clock Amp     1000mv
CPU Clock Skew    Delay 100ps
PCH Clock Skew    Normal

LLCAuto
CPU Volt ModeVID
CPU Voltage1,3375
CPU PLL Voltage1,8020
IMC Voltage1,3647
PCH Voltage1,0600
DRAM Voltage1,6562


Idle~1,336
Load~1,352
First out was HCI Design Memtest, I ran 900mb of ram in 8 instances in little more then 12hrs, no errors



Next up was Prime95, I did the same as with Memtest, I ran "Custom" with 900mb of ram in 8 instances in little more then 12hrs before I stoped it, no errors





I most say that it´s pretty awesome to run 8Gb of ram at 2000C8 with a Bclk of 200 and a UnCore frequency of 3600MHz at "only" ~1,365 of voltage for the IMC and consider that it´s done with a cpuspeed of 4,2GHz.
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post #257 of 560
Ahh so envious....lol...mine still a work in progress...new bios came out...gonna do some testing with that...
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post #258 of 560
Quote:
Originally Posted by iceboi714 View Post
Ahh so envious....lol...mine still a work in progress...new bios came out...gonna do some testing with that...
No need for that, someday you going to get a good chip, I have gone through plenty of mediocre Core 2 Duo, Quad, i5 and i7 in my days so finally it seems like I got a pretty good chip in this i7 875k, so I have to enjoy it as long as it lasts .
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post #259 of 560
Thread Starter 
Quote:
Originally Posted by Sivsta View Post
Sorry for the late response, SC2 has been keeping me pretty busy

VTT @ 1.35
Same. Whats your character info?
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post #260 of 560
Quote:
Originally Posted by cory1234 View Post
Same. Whats your character info?
Sivaeb, code: 991

@ work atm, I'll double check the code when I get home (should be 991 though).
The Sivmiester
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The Sivmiester
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