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Thread: 7800GTX overclocks with Volt Mods??

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  1. 07-08-2005, 10:37 AM #11
    ViperJohn
    ViperJohn is offline
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    Jan 2004
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    Here are the as modded Vcore pictures. The trimmer is a 200 ohm, 25 turn and gives a .050
    Vcore bump at full resistance. Adjustment is extremely smooth with very high resolution.
    .001 volt changes are easy to dial in.

    The Vcore metering point is the clip post soldered at C792 in the 3rd picture.

    Viper
    Attached Thumbnails Attached Thumbnails Click image for larger version.  Name: 7800 Vcore Mod 1.jpg  Views: 3238  Size: 178.9 KB  ID: 33780   Click image for larger version.  Name: 7800 Vcore Mod 2.jpg  Views: 2395  Size: 142.4 KB  ID: 33781   Click image for larger version.  Name: 7800 Vcore Measure.jpg  Views: 2727  Size: 186.9 KB  ID: 33782  
    .
    8800 Ultra to 756x1944/1260 ViperFang-IV Water Cooled
    .
    2900XT to 992/1197 ViperFang-IV Water Cooled
    .
    8800GTX to 756x1784/1161 ViperVenom 245w TEC Cooled
    .
    7800GTX-512's to 742/2106
    .
    7800GTX-256's to 650/1620
    .
    Pictures at www.imageevent.com/marginjohn/viperjohn
    .
    Contact JohnHillig@Earthlink.net for Modding Information and Support.
    Reply With Quote Reply With Quote
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