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nachtfalke

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Posts posted by nachtfalke

  1. i got some free time and test this home made powercard in heavy load with HD7970 cascade cooled (builded by me last year) , nice to see that some users "copy" this (with my help ofcourse) and posted in FB some build based on 580L :D

     

    for gpu VCC+ i use 6 (one is under the power card) copper strips 6mm each , each are solder were was the stock chockes ( amd reference use only 5 but pcb design was for 6 phases , so you have 6 points to solder VCC+)

     

    for gDDR VCC+ i use 2 in paralell copper strips 4mm each

     

    for GND i use 9 copper strips 4 mm(3 stk) and 6mm (6 stk)

     

    i have only 5 to 7 mv droop from powercard output to back gpu side! in load at 1.6V

     

    max gpu clock was 1680 -1700 , need to mod the pll to see if helps !

     

    2003_7700k_z270soc_sskoubv.jpg

     

    20170423_132801custom72ujb.jpg

     

    20170423_091609custom4jjjg.jpg

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