G80 8800GTS OCP + VDROOP MOD - Made & Confirmed Working!

[N1ck R1mer]

I asked if you could bench @ 1.55v, not 1.45 & 1.50v. Again today i benched 03 nature & 06 at 1.62v idle 1.60v load - can you do that? (dont say you did at 1.5 and its the same as my 1.6v as its not )

Mark's is NOT the stability tests with 8800XXX series! The OCP works at 1,38 V now and it it's no matter if it 1,5 or 1,55 or 1,6 V - it works with HL2. I can run "nature" test even with current 1,37 Volts and 729 MHz GPU, but HL2 will freeze in about 5 minutes, so "nature" is not the stability parameter.

im still not convinced, what you did by removing the 78X resistors is crazy

No, it isn't. That's the way how OCP mod's working - you should isolate sense pin(s). That's the way, how is has been made with 7900GTX and the other cards. And now we know that it's the way to remove OCP with 8800GT and new 8800GTS 512 M.

and may be causing your problem.

Yes, this could be. I did not throw out those resistors, so I can place them back any minute. You said that you ran marks and Crysis with more than 1,38 V - so do I, and I notice NO any OCP. That's why the 78X resistors are still in a polyethylene separately from my card.

Did you measure the resistance across the caps & to ground before and after soldering them on? Or did you just solder on 1.2k's as thats what i did? I measured mine & thats why i chose the 1.2k resistors - since you removed the others it may be you need different value to me, or need to replace the 78X resistors to retore functionality.

Yes, I did. It was about 1,29 K.

Despite your result, i could never run above 1.45v idle no matter what the test or game before it would shut down, so it has achieved a substantial gain for me.

Yes, It's about 1,38 V load. I did the whole HL2EP2 walkthrouh with 1,45 V load (it's the min voltage for 729 MHz core with my card) and OCP works only at final scene. Then I tryed another apps (also the Crysis - no effect), and found one, which causes OCP with 1,45 V idle - it's the Bioshock game. But it needs about an hour that protection has worked.

i will be busy till at least 2nd Jan, may download & install game after then.

If you did this and notice no OCP with at least 1,45 V load (don't need 1,6 V esp. with stock cooling!), please post your impressions here