ATI 4850/4870 voltmod thread

[Jim M0rrison]

@Gamerviek: Wow! That's yield for your time/money indeed!

Small update on the powercolor 4870 pcs rev2: Measured the FB->gnd and got 16kOhm (from several spots).

Didn't have a 200k+ vr at home, so the testing will have to wait for a while, but if anyone also interested in modding this card could verify this 16k res, I'd be grateful!

Further: Stock vGPU is ~1.31v in windows, no load, and vMem is ~1.6v, same setting.

[scutzi128]

Hey ceemic on that asus 4850 what points were you using to test for the vcore voltage?

[ziggo0]

Alrighty, I got my 200k pots in the mail, now that i hook the 2x pcie connectors up and check pin 19 with the multi meter set properly, I'm only measuring 9.4 ~ 9.5kOhms...is something wrong?