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8400GS Vgpu pencil mod
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8400GS Vgpu pencil mod
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10th December 2008, 16:46
| #1 |
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Posts: n/a
|  XFX 8400GS Vgpu & Vmem mod Hi guys, I just want to share an easy pencil voltmod for XFX' GeForce 8400GS 265MB. First step is to find the IC "SC2621":  As you can see there, Pin5 is the FB which also controls the GPU voltage. Original resistance should be exactly 600Ohm; Vgpu ~1.3V.  In the area around the IC SC2621 can be found a resistor with same resistance, this has to be penciled in the following. The measure point is just some cm next to it: Of course you can also solder a variable resistor(20k) between Pin5 of the IC and Pin9(GND). Some settings I've tested myself: 600Ohm - 1.32V 500Ohm - 1.5V 484Ohm - 1.56V This voltmod gave me a big boost of 170Mhz GPU and 232Mhz shader clock  Greetings malk Last edited by mAlkAv!An : 25th April 2009 at 09:07. |
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10th December 2008, 18:44
| #2 |
| [M] Reviewer  Join Date: Nov 2004
Posts: 4,127
  | Thanks, nice addition for the 8400GS overclocking article: http://www.madshrimps.be/?action=gethowto&howtoID=76 |
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10th December 2008, 18:57
| #3 |
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Posts: n/a
| Nice article, didn't see it before Btw, my card topped out at 769Mhz(gpu)/1782Mhz(shader) @ 1.56V with stock cooler  |
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10th December 2008, 19:20
| #4 |
| [M] Reviewer Join Date: Nov 2004
Posts: 4,127
| The stock heatsink is worth nothing  Go for VF1000 after market heatsink, can be used on many videocards so no lost money there. |
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11th December 2008, 01:14
| #5 |
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| The problem is not the cooler but the screw holes distance - no standard on the XFX one. Otherwise I would have installed my Accelero S1 |
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25th April 2009, 09:05
| #6 |
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Posts: n/a
| Hi guys, just want to share a little update according to this voltmod. I made some new better pictures & guidlines after doing the vmem mod too |
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