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Overclock.net - Overclocking.net > Volt Mods > General Volt Mods > Graphics Cards Volt Mods | |
Volt Modding 8800GTS 640
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11-14-07
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#1 (permalink) | |||||||||||||
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Now Available in Orange
 
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Volt Modding 8800GTS 640
Due to the release of the 8800GT and crysis I feel it's time to take extreme measures to overclock my GTS even farther. Right now my max core clock is 621Mhz and I am shooting for around 700Mhz with the volt mod.
I tried the pencil mod already but I couldn't get the resistance low enough due to the resistance starting out extremely low already (stock was 33 ohms, but could only get it to 31.5 ohms with a pencil). And somehow that change was not enough to bump the core voltage at all. So tomorrow I'm getting a 1k ohm variable resistor and soldering it on  Here's a little graph I made showing VR setting vs. total parallel resistance (given by the equation y = 1/((1/31.5)+(1/x))  Pics and results tomorrow after school.
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Last edited by Fishie36 : 11-15-07 at 12:43 AM |
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11-14-07
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#2 (permalink) |
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Audiophile
 
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You've got some pretty big b... Um, you are pretty courageous.
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11-14-07
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Quote:
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11-14-07
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Now Available in Orange
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Project delayed due to radio shack not carrying a 1k resistor
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11-18-07
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It works!
Before: 621 Core 1458 Shader 1.28v 11709 3dmark06 After: 648 Core 1512 Shader 1.35v 11974 3dmark06 So I guess my card was a pretty dud overclocker. I went up to 1.44v but that still didn't make it stable at 675mhz core (next incriment up  )
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11-18-07
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Ding ding ding ding ding!
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Nice work! Soldering and high priced precious components do not mix well, especially in my hands...
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Watercooling Loop: MCP655 Vario -> Black Ice GTX360 -> Stinger Diamond Max -> Heatkiller GPU-X² -> MicroRes
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11-18-07
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Overclocker
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Aw, I was hoping it would be as easy as a 7900gt vmod.... dang...
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11-18-07
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Overclocker
 
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whoa nice.. im thinking of letting you voltmod my GTX
 1.4v or 1.5v tho.. my temps are real low 48C-51C idle, 63C(100%fan) and 71C on load.EDIT: unless you can teach me lol
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11-18-07
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Professional GTA 4 Modder
 
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you know ther is a memory voltage volt mod. i did it to my GTS and im running really high almost 700 core. im at 683 right now and my memory is at i think 1063 and shaders around 1600
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11-18-07
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Now Available in Orange
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Quote:
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