Replacing capacitor short circuit question

[SolderingJoe]

Hello,

I took out a capacitor on and old Nvidia 8600 GT. I tested the card with a multimeter afterwards and there is a short circuit even though the cap is removed now... Is this normal? This is my first time trying to do something like this.

The card is an XFX 8600 gt. Without the capacitor it seems to work fine.

Any thoughts are much appreciated.


Thanks

 

[stefano_b]

Hello,

I took out a capacitor on and old Nvidia 8600 GT. I tested the card with a multimeter afterwards and there is a short circuit even though the cap is removed now... Is this normal? This is my first time trying to do something like this.

The card is an XFX 8600 gt. Without the capacitor it seems to work fine.

Any thoughts are much appreciated.


Thanks

The short is caused by the graphic chip in the 99%.
At the moment I try to repair an MXM card with a not completely short, about 7 Ohm, on the video ram pwr rail. Also this contain the 8600 gt graphic chip.
This card is partially working but the video chip is very hot when powered on!!!.
To know if the problem is related to a capacitor or an active component, (video chip, diodes, transistor), try to heating the board and re-measuring the short. If the value change (decreasing value) the problem is caused by an active component.
This method is valid only in ambiguous case, not a fully short!, at least between 4 and 20 Ohm. Alternatively, try to measure the short (in Ohm) directly across different capacitors, diodes, and other incriminated components; the minus value obtained is nearly the broken component.
The 8600 series is affected by a wafer damaged!!!
Your problem is certainly the graphic chip!
Change the "8600 gt" with a new one, build after 2010.