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der8auer

Nvidia GTX 260/280 reference PCB

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Nvidia GTX 260/280 reference PCB

 

Pics:

attachment.php?attachmentid=1817&stc=1&d=1388953384

 

attachment.php?attachmentid=1818&stc=1&d=1388953384

 

 

 

OCP:

 

attachment.php?attachmentid=1819&stc=1&d=1388953384

 

 

 

vMEM:

 

attachment.php?attachmentid=1820&stc=1&d=1388953553

 

attachment.php?attachmentid=1821&stc=1&d=1388953553

 

attachment.php?attachmentid=1822&stc=1&d=1388953553

 

attachment.php?attachmentid=1823&stc=1&d=1388953553

 

attachment.php?attachmentid=1824&stc=1&d=1388953553

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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?

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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 :D

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Thanks for the aiming point :D Best i've ever had on water with GT200 is 775MHz, but I always keep volts low

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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 :D

 

 

 

Oh.... some of the original pictures are wrong. At some point, i'll get accurate ones posted :)

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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 :confused:

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Hey guys,

 

I found a little mistake for the VDD mesuring point.

 

 

570275gtx280scanback.jpg

 

And for the OCP a very simple things:

 

OCP GTX 260 = 183Kohm

OCP GTX 280 = 250+Kohm

 

572104des.jpg

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Anyone has pics from first post? Seems they're not available after forum migration :(

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