8800GT Volt mod

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trueg50 Posted: Mon, Mar 24 2008 2:27 PM

 Well, I got bored lately, and decided to volt my my 8800GT 512.

 

Following this guide: http://www.overclock.net/graphics-cards-volt-mods/293265-how-solderless-8800gt-gts-volt-mod.html#post3599951

 

I got it togather, looked good, but one issue, my resistance kept being read as 300, not 14 when the mod is fully in place. Turns out, the wire to tape down kept getting loose. An excellant reason why you do double, triple, and quadruple checks before putting it all in. So I broke down, placed a tiny bit of soldier on the wire, set it on the capacitor, tapped it with the soldiering iron, and I was away.

 

So for a voltage of ~1.1 (via the BIOS mod) which is more like 1.0-1.05 read from a DMM, I got 720 core, and ~1720 shader. I upped it to 1.25 vore, and though I have yet to hit any instability yet, I am up to 800 core, and 1900 shader! Very impressive considering my temps really haven't changed.

 

Learned alot aobut circuits and how to use a DMM from my roommate, had lots of fun, and better perfromance all for a $2.75 Variable resistor.

E6400 3.4 1.45 Vcore (35 idle, 45 load) Asus P5N32-E SLI (1205 bios) 4gb OCZ reapers 4-4-4-12 850 mhz 1T EVGA 8800GT 1.25 V mod, 800 / 1900 shader / 1970 mem 2 x 7200.10 320 gb RAID 0 , 1 x 200 gb for backup Apogee GT, BIP III, Swiftech MCP-655 Thermaltake Armor
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frg1 replied on Mon, Mar 24 2008 2:54 PM

 good mod wonder if it will work in sli 

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trueg50 replied on Mon, Mar 24 2008 3:56 PM

 As long as the clocks are the same it will work.

 

Just a little tricky, you will probably have to test, and set the voltage ine card at a time due to clearance issues.

E6400 3.4 1.45 Vcore (35 idle, 45 load) Asus P5N32-E SLI (1205 bios) 4gb OCZ reapers 4-4-4-12 850 mhz 1T EVGA 8800GT 1.25 V mod, 800 / 1900 shader / 1970 mem 2 x 7200.10 320 gb RAID 0 , 1 x 200 gb for backup Apogee GT, BIP III, Swiftech MCP-655 Thermaltake Armor
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