der8auer Posted January 5, 2014 Share Posted January 5, 2014 Nvidia GTX 260/280 reference PCB Pics: OCP: vMEM: Quote Link to comment Share on other sites More sharing options...
K404 Posted February 2, 2014 Share Posted February 2, 2014 I have a question about the OCP mod. On all the cards I have, the OCP component reads as either 20K or 28K depending on what "direction" I hook up the probes. Have my cards been given adjusted component values? If I attach a 50K in parallel, I get ~18K as the result, where does the "25K instellen" come from? Quote Link to comment Share on other sites More sharing options...
Freakezoit Posted February 2, 2014 Share Posted February 2, 2014 Kenny , 25K instellen means set the 50K VR to 25K nothing more . Quote Link to comment Share on other sites More sharing options...
K404 Posted February 2, 2014 Share Posted February 2, 2014 Thanks Alex, so basically all we need to do is cut the OCP signal in half Bet a 3-phase PWM will LOVE that :D Quote Link to comment Share on other sites More sharing options...
Freakezoit Posted February 3, 2014 Share Posted February 3, 2014 I did that with my Old GTX 280 1.5v+ was no problem on Water http://hwbot.org/submission/1065627_freakezoit_3dmark06_geforce_gtx_280_25376_marks Quote Link to comment Share on other sites More sharing options...
K404 Posted February 3, 2014 Share Posted February 3, 2014 Thanks for the aiming point Best i've ever had on water with GT200 is 775MHz, but I always keep volts low Quote Link to comment Share on other sites More sharing options...
der8auer Posted February 3, 2014 Author Share Posted February 3, 2014 65nm GPUs actually scale a lot more with temperature than with voltage. I only used about 1,4 Volt there: http://hwbot.org/submission/2238092_der8auer_3dmark05_geforce_gtx_280_45658_marks Quote Link to comment Share on other sites More sharing options...
K404 Posted February 3, 2014 Share Posted February 3, 2014 Oh yea, cold is definitely the way to go with GT200 If a card can handle 1.5v + 825MHz+ core + "warm," then OCP is clearly not a problem :D Oh.... some of the original pictures are wrong. At some point, i'll get accurate ones posted Quote Link to comment Share on other sites More sharing options...
Crew Sweet Posted February 4, 2014 Crew Share Posted February 4, 2014 Oh Kenny or Alexander, Can you please uploading pics of your OCP mod?, i dont understand very well the pics in the first post, sorry Quote Link to comment Share on other sites More sharing options...
K404 Posted February 4, 2014 Share Posted February 4, 2014 Here you go bro Quote Link to comment Share on other sites More sharing options...
Crew Sweet Posted February 4, 2014 Crew Share Posted February 4, 2014 Here you go bro Thanks K and Roman !!! i'l try this now understand :banana: Quote Link to comment Share on other sites More sharing options...
rockeur.alexis Posted February 7, 2016 Share Posted February 7, 2016 Hey guys, I found a little mistake for the VDD mesuring point. And for the OCP a very simple things: OCP GTX 260 = 183Kohm OCP GTX 280 = 250+Kohm Quote Link to comment Share on other sites More sharing options...
phobosq Posted July 18, 2018 Share Posted July 18, 2018 Anyone has pics from first post? Seems they're not available after forum migration Quote Link to comment Share on other sites More sharing options...
bigblock990 Posted July 19, 2018 Share Posted July 19, 2018 39 minutes ago, phobosq said: Anyone has pics from first post? Seems they're not available after forum migration Not sure exactly what you need, but check this post maybe it can help you. https://www.overclock.net/forum/410-benchmarking-competitions/1675577-freezer-burn-overclocking-competition.html#post27027249 1 Quote Link to comment Share on other sites More sharing options...
phobosq Posted July 19, 2018 Share Posted July 19, 2018 Looks perfect, thanks! Quote Link to comment Share on other sites More sharing options...
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