How To: Overclocking Your AMD Processor

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cangelini

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[citation][nom]Pei-chen[/nom]Tom’s is been run by a CEO with directors above and upper management below him, just like Lehman Brothers. Run by founder with value and integrity is so 1990s. Now it is all about merger, selling out and huge bonuses.[/citation]

Hey now, Pei. I was the hardware editor at SharkyExtreme back when Tom was in charge over here. Patrick has been around since the beginning. I think we do a darn fine job of keeping that same enthusiast spirit alive here now.
 

rambo117

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wow, i had know idea how awesome AOD actually is. first time givin it a try. how do you edit the preferences? i went into the AOD directory and opened the AODconfig.xml file with notepad, but what do i edit??
even though i do prefer BIOS overclocking, i wanted to see how AOD compares to my regular bios OC's. help plez!!!!!!!!!!!!!
 

rambo117

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wow, i had know idea how awesome AOD actually is. first time givin it a try. how do you edit the preferences? i went into the AOD directory and opened the AODconfig.xml file with notepad, but what do i edit??
even though i do prefer BIOS overclocking, i wanted to see how AOD compares to my regular bios OC's. help plez!!!!!!!!!!!!!
 

turbo

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Paul, could you re-do part of the test? Reset everything to standard and realy try the 'Auto Clock'? It would be nice verify that you're smarter than a piece of software :)

Joking aside though, I like overclocking as much as the next guy, but time is sparse... If I can get 'very close' to the optimum with the 'Auto Clock', I can take it from there manually.


Also, as a side note - I've never 'overclocked the memory' (or whatever one would call it - 'finetune the memory'?). Any article(s) that describe the theory on that in more detail?
 

turbo

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Paul, could you re-do part of the test? Reset everything to standard and realy try the 'Auto Clock'? It would be nice verify that you're smarter than a piece of software :)

Joking aside though, I like overclocking as much as the next guy, but time is sparse... If I can get 'very close' to the optimum with the 'Auto Clock', I can take it from there manually.


Also, as a side note - I've never 'overclocked the memory' (or whatever one would call it - 'finetune the memory'?). Any article(s) that describe the theory on that in more detail?
 

ImmortalJman

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I loved the article. It was very deteailed. But I couldn't figure out as well what to edit in the .xml file. The preference file didn't seem to have anything that I could edit that would change the maximum allowable voltage.
 

Grafix

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jhanschu : ...Does anyone know what a good OC on say the X3 710 would be? It's about $40 cheaper than the 720BE and if it could even hit close to 3.0 I would consider it a decent buy.

I put together X3 720 BE system for video project and my own upgrade from 3GHz P4/800/512 and had same curiosity as you. My 126.5% overclock ratio results might be similar for X3 710. At non-BE locked setting of 14X multiplier I was error-free in Prime95 (longest run was 6+ hours) at CoreSpeed:3542 (1.4V), BusSpeed:253, HTLink:2024 (HT/NB=1600 in BIOS). That ran my DDR2-1066 as only 1012MHz, but acceptable.

My Corsair RAM is sold as DDR2-1066 but neither pair overclocked well above 1080. It is apparently DDR2-800 tested to perform at 1066 speed by increasing 1.8V RAM voltage to 2.1V, as per Corsair. All timings had to be set manually in my BIOS because reported SPD is DDR2-800. My BIOS is now set to DDR2-800 but with DDR2-1066 timings 5/5/5/15/2T/22 for the "overclock". I bought them because it was the least expensive brand DDR2-1066 sold by Newegg on Biostar's compatibility list, and Corsair has always fared well in past system builds.

Testing multiplier-only overclock at standard BusSpeed:200, HTLink:2000, DDR2:800 my CPU maxed out at 3500MHz (200x17.5) stable. I received an error from 3rd core about 3 hours into Prime95 torture test using 3600MHz (200x18) setting. Fastest I was able to boot and run AOD benchmarks was CoreSpeed:3762 (1.425V), Multiplier:x18.0. BusSpeed:209, HTLink:1881, DDR2:1113 (2.25V). I never bothered to exceed rated core voltage of 1.425V in any test. This is all with AMD stock cooling, mind you.

I failed to check if my CPU was from the 0904 production batch before installation but this motherboard will not even post with ACC "Auto" enabled for unlocking 4th core. BIOS is CM113.BS that was already loaded with motherboard. I'm pretty satisfied and this system has far surpassed the various Core 2 Duo E8xxx systems we used at work. I want Intel to have competition so I support/build AMD systems for myself and customers every chance I get. I'm not into gaming/overclocking and the mATX case I chose has limits, so I planned to be conservative from the beginning.

My current settings are: CoreSpeed:3458 (1.3875V), Multiplier:x13.0, BusSpeed:266, HTLink:1862, DDR2:1066 (2.15V). Nothing more than warm to the touch except my SCSI drive which has always felt moderately hot.

Corsair CMPSU-550VX (many long cables, bad choice for mATX)
Biostar TA790GX XE AM2+ mATX
AMD Phenom II X3 720 BE AM3
4GB Corsair TWIN2X4096-8500C5D (Dominator heatsink barely clears in DIMM1/2)
4GB Corsair TWIN2X4096-8500C5 (low-profile clears hard drive, DIMM3/4)
Sapphire Radeon HD 3870 (100225L)
Western Digital Black 500GB (WD5001AALS)
Maxtor Atlas 10K IV 146GB (on LSI U160 adapter)
Lite-On LH-20A1L DVDRW
SIIG Firewire 400 Home DV Kit
 

mesro

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If i tried the same process on Amd x3 720 BE, would i have any good results ? My rest Overclocking stuff ( i guess !) is Asus M4A78 PRO ( as mobo), Corsair 2x2 GB 800 Mhz (Ram), Scythe Kama Angle (as a Cpu cooler). Thanks.
 

greenman9

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I have Phenom 9850 BE coupled to an MSI K9n2neo and I Initially installed 2 gskill 1066 rams at 2G each, I had to remove the ram and install 2 Gskill at 1G each to get my system up and running. this was my first computer build and later I heard that the reason the faster better Ram is that to take advantage of the better ram at 1066 requires changing settings in BIOS. as I said I am new to this I dont want to mess with Bios unless its very basic stuff. any way any suggestions or guidance to a good reference?
 

pij

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Just read this and it's going to be a great help when I get my 940be.

Thanks for the info - really helpful.

PJ
 

CyberV

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http://vrworld.com/2015/03/16/thomas-pabst-is-the-computing-business-getting-boring/

Somehow i ended up with article. :)
 
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