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Thread: 9550 vmod request

  1. 02-23-2006, 10:58 PM #1
    cirthix
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    9550 vmod request-update:additional picture, chip identified

    The one i have is on a low profile pcb, so i couldnt find any vmods for it.

    here's pictures:
    http://www.cryo-laboratory.com/uploa...rthix/back.JPG
    http://www.cryo-laboratory.com/uploa...hix/front2.JPG
    http://www.cryo-laboratory.com/uploa...rthix/vreg.JPG

    and what i had to do to fix it:
    http://www.cryo-laboratory.com/uploa...resoldered.JPG
    yeah, i resoldered soldered that, i got it for free because it was corroded (that area of the ram and a few other areas)so bad it artifacted. acetone, alcohol, and even soapwater couldnt clean it off
    Last edited by cirthix; 02-25-2006 at 04:44 AM.

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  2. 02-24-2006, 03:46 AM #2
    persivore
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    Can you tell me whats written on the chip I've circled please.
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  3. 02-24-2006, 04:12 AM #3
    cirthix
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    Quote Originally Posted by persivore
    Can you tell me whats written on the chip I've circled please.

    i5 3570K@ 4.8GHz 1.32v, 32GB Gskill 1866, Gigabyte g1 sniper m3
    HD7970@1125/1575 stock voltage
    1TB F1+2*128GB Crucial M4
    Silverstone 450w, no case
    2560*1440@120Hz overclocked catleap
    Steelseries G6v2+5600dpi modded logitech trackball
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  4. 02-25-2006, 06:47 PM #4
    cirthix
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    bump

    i5 3570K@ 4.8GHz 1.32v, 32GB Gskill 1866, Gigabyte g1 sniper m3
    HD7970@1125/1575 stock voltage
    1TB F1+2*128GB Crucial M4
    Silverstone 450w, no case
    2560*1440@120Hz overclocked catleap
    Steelseries G6v2+5600dpi modded logitech trackball
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  5. 02-26-2006, 02:32 AM #5
    persivore
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    Can you check the resistance between the pin I've marked and ground please.
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  6. 02-26-2006, 02:38 AM #6
    cirthix
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    190ohms

    i5 3570K@ 4.8GHz 1.32v, 32GB Gskill 1866, Gigabyte g1 sniper m3
    HD7970@1125/1575 stock voltage
    1TB F1+2*128GB Crucial M4
    Silverstone 450w, no case
    2560*1440@120Hz overclocked catleap
    Steelseries G6v2+5600dpi modded logitech trackball
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  7. 02-26-2006, 02:59 AM #7
    persivore
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    For the Vgpu mod, connect a 10k VR between the pin in the above post and ground. Decrease resistance to incease voltage.

    For the Vdd mod, can you check the voltage at the point I've marked, and get a close up picture of the area please.
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  8. 02-26-2006, 03:07 AM #8
    cirthix
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    2.533v
    vgpu mod soldered, i havent adjusted the pot yet.

    where's the vgpu measure point?

    Last edited by cirthix; 02-26-2006 at 03:40 AM.

    i5 3570K@ 4.8GHz 1.32v, 32GB Gskill 1866, Gigabyte g1 sniper m3
    HD7970@1125/1575 stock voltage
    1TB F1+2*128GB Crucial M4
    Silverstone 450w, no case
    2560*1440@120Hz overclocked catleap
    Steelseries G6v2+5600dpi modded logitech trackball
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  9. 02-26-2006, 04:44 AM #9
    persivore
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    You should be able to read Vgpu on the legs of the inductor I've circled.

    For the Vdd mod, can you check the voltages at the points I've marked. Keep the card at constant load when checking the voltages.
    Attached Thumbnails Attached Thumbnails Click image for larger version.  Name: Vgpuread.JPG  Views: 310  Size: 77.2 KB  ID: 44023   Click image for larger version.  Name: Vdd1.JPG  Views: 308  Size: 115.1 KB  ID: 44024  
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  10. 02-26-2006, 05:20 AM #10
    cirthix
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    Quote Originally Posted by persivore
    You should be able to read Vgpu on the legs of the inductor I've circled.

    For the Vdd mod, can you check the voltages at the points I've marked. Keep the card at constant load when checking the voltages.
    i get 4.8v from that measure point

    i5 3570K@ 4.8GHz 1.32v, 32GB Gskill 1866, Gigabyte g1 sniper m3
    HD7970@1125/1575 stock voltage
    1TB F1+2*128GB Crucial M4
    Silverstone 450w, no case
    2560*1440@120Hz overclocked catleap
    Steelseries G6v2+5600dpi modded logitech trackball
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  11. 02-26-2006, 05:23 AM #11
    persivore
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    Try one of these points then
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  12. 02-26-2006, 05:33 AM #12
    cirthix
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    point on the left is 1.23v or so, vgpu. the point on the right is ground.

    i got this card because it artifacted and it was free. i figured some extra voltage would make it work fine. the card seems to have just died. also, turning the pot didnt change vgpu, so it wasnt related to the mod.

    ah well, soldering practice

    i5 3570K@ 4.8GHz 1.32v, 32GB Gskill 1866, Gigabyte g1 sniper m3
    HD7970@1125/1575 stock voltage
    1TB F1+2*128GB Crucial M4
    Silverstone 450w, no case
    2560*1440@120Hz overclocked catleap
    Steelseries G6v2+5600dpi modded logitech trackball
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  13. 03-06-2006, 02:49 AM #13
    brandinb
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    hehe what a shame!

    do some more practice change out the caps see if it awakens!
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  14. 03-13-2006, 07:15 PM #14
    bigval
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    Too bad, I wish I could spot possible vmods like that!
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