Vmod for NCP 5395 Graphics (Giga GTX 260 SOC - 55nm)

[OBR]

Hi, maybe it is not so smart move now ... because "Beat Me If You Dare" competition. But i dont keep this mod only for myself and here is ... working Mod for Gigabyte GTX 260/275 Super Overclock Graphics ... maybe helps you..



This mod is applicable on every GFX with ON Semiconductor regulator NCP 5395. First one is vGPU mod, with 470kOhm (or lesser, i had this one) trimmer soldered on pin 18 and ground. You can see it on pic 1. Next here is theoretical OCP mod, but i dont needed it for good results ...

For example, 1,3V on GPU needs 8,5 kOhms on trimmer ...



Gigabyte GeForce GTX 260 SOC version ...



vGPU measuring point + ground (PCI connector from PSU)



Easy to install ...



Perfectly working ... tested

------------------------- This mod is for ***, look at new version ... fully working, without OCP/OVP trigger -------------------------------



Pls exchange A (R1025) and B (R1022). A->B; B->A

And you can use the adjustable resistance on C (C157). I tryed resistors from 100 Ohms - 470k Ohms, best results i have with 10 kOhms trimmer. Card works perfectly with 1,52V on GPU and was fully stable in 3DMark Vantage ... at 1098 MHz ... no OVP/OCP triggering ... tested on GTX 260 and GTX 275, working really great!