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01-27-2007, 05:22 AM
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#1
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Xtreme Owner
Join Date: Jun 2002
Location: Las Vegas
Posts: 11,144
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Kentsfield trick for high FSB benching
For those of you who have a Kentsfield and want to test high FSB you can disable corew three and four to reach the highest bus speeds possible on your motherboard.
I wanted my bandwidth back and dropped to one core and went for 500FSB and it booted, then enabled core two and the system booted into windows fine.
This will improve scores that dont take advantage of four cores/threads with the maximum FSB being possible as well as a small increase in the top speed of the chip when running only two cores. I cannot confirm that all systems will work as described above, I am on an 680i board by EVGA that will go past 500 with ease.
This is for benching and for those who want to try it.
Last edited by FUGGER; 01-27-2007 at 06:07 AM.
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01-27-2007, 05:36 AM
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#2
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Memory Addict
Join Date: Aug 2002
Location: Brisbane, Australia
Posts: 11,401
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interesting... not much use for 3dmark06 with 2 cores disabled ?
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01-27-2007, 05:58 AM
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#3
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Xtreme Owner
Join Date: Jun 2002
Location: Las Vegas
Posts: 11,144
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Nope, but the other products run fine.
I have a bunch of scores saved up now from being unable to post, hope they get the orb fixed soon.
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01-27-2007, 06:00 AM
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#4
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Champion
Join Date: Jun 2002
Location: Romania
Posts: 938
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FUGGER, what BIOS are you using ? P20/P21 with Qx6700 B1 remained at low bandwidth and low FSB limit with core 2 and 3 disabled, even if Windows reported only 2 active cores.
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01-27-2007, 06:08 AM
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#5
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Xtreme Owner
Join Date: Jun 2002
Location: Las Vegas
Posts: 11,144
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Bios 23? 12/16/06
I fired up for a screen shot, B3 chip.
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01-27-2007, 06:11 AM
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#6
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Champion
Join Date: Jun 2002
Location: Romania
Posts: 938
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There was no P23 out when i had the Qx6700's 
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01-27-2007, 06:43 AM
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#7
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Xtreme Enthusiast
Join Date: May 2006
Location: Serbia-Belgrade
Posts: 564
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One stupid question, can commando disable 2 cores from bos, if not how to do it?
@FUGGER
Can you answer to my pm, from couple days
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01-27-2007, 06:46 AM
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#8
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Xtreme
Join Date: Oct 2004
Location: Banana Republic
Posts: 4,182
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Disable either in bios or msconfig
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01-27-2007, 06:48 AM
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#9
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Xtreme Owner
Join Date: Jun 2002
Location: Las Vegas
Posts: 11,144
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Not sure about commando. Ill look back for your PM.
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01-27-2007, 06:49 AM
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#10
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Banned
Join Date: Nov 2006
Posts: 823
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Quote:
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Originally Posted by Spacemaster
One stupid question, can commando disable 2 cores from bos, if not how to do it?
@FUGGER
Can you answer to my pm, from couple days |
Yes it can
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01-27-2007, 07:00 AM
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#11
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Xtreme Enthusiast
Join Date: May 2006
Location: Serbia-Belgrade
Posts: 564
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Quote:
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Originally Posted by Drag
Yes it can
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I will play with commando and X3220 at wednesday, so thanks for info. 
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01-27-2007, 09:34 AM
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#12
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Xtreme Addict
Join Date: Jan 2003
Location: Macomb Twp MI
Posts: 1,033
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Wow nice info.. Funny as i remember lookin at that option going why would one want to dissable some of the cores?? lol.. This is why! Cool.. Cant wait to get a chance to check this out.. Thanks man for the info!
I've already added a link to this at evga's forums.. Nice find!
__________________
As of: 12/05/07
Intel QX6700 @ 3700Mhz w/ Evga 680i MB
4x 1GB PC2 8000 Ballistx Tracers
2x Evga 8800GTX Volt modded (1.6 core/ 2.2v mem)
2x Western Digital 74GB 10K RPM Raptors
2x 300GB Seagate sata drives
Creative X-Fi Fatality sound card
PC Power Cooling 1 Kilowatt SLI P/S
Custom Moutain Mods UFO case
My HeatWare
My latest "BIG MASSIVE CUSTOM Computer Case Creation!"
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01-27-2007, 11:15 AM
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#13
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Banned
Join Date: Nov 2006
Posts: 823
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whats the temperature difference?
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01-27-2007, 12:32 PM
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#14
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Xtreme Member
Join Date: Oct 2006
Location: Yermo, CA
Posts: 105
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Quote:
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Originally Posted by kiwi
Disable either in bios or msconfig
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I have two motherboards each with Its own QX6700 cpu, One is an Asus P5W DHD and the other is an Abit AW9D-MAX and I don't know of any way to disable any core of a cpu. If It exists I'd love to know where. 
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01-27-2007, 12:52 PM
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#15
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Xtremely Addicted
Join Date: Dec 2004
Location: NL
Posts: 2,268
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run>msconfig>bootini>advanced>numproc=
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01-27-2007, 03:42 PM
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#16
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Champion
Join Date: Jun 2002
Location: Romania
Posts: 938
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Quote:
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Originally Posted by JokerCPoC
I have two motherboards each with Its own QX6700 cpu, One is an Asus P5W DHD and the other is an Abit AW9D-MAX and I don't know of any way to disable any core of a cpu. If It exists I'd love to know where. |
From BIOS, only Intel 975XBX/2 and the 680i reference boards (eVGA, BFG etc) have the option to disable cores.
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