GTX285 various mods.. which may work for GTX260/280/295 also

[NapalmV5]

updated guide to 1.39375vgpu max

before attempting any vcore mod please measure your current vcore

courtesy: CryptiK

red:vgpu/green:vmem


step #1
- for better understanding please check dengyongs post #80 cryptiks post #112 and #118
- simple way to increase vcore from 1.15v reference

1.26vcore @ load

step #2
- the lower the resistance at this resistor the higher the vcore allowed
- pencil this resistor to bring resistance down to around 350ohm

1.29-1.33vcore @ load

step #3
- this step is more for the water/more xtreme cooling
- this point increases vcore according to the resistor in above pic ^
- solder a 150ohm resistor to ground from this red point

1.36vcore @ load

2.20vmem @ load

so far ive gotten 1.38vcore

unfortuanately no matter how low the resistance gets @ step #2

all is limited to the reference voltage: 1.39375

past this voltage further mods are needed


thanks goes to Cryptik for all the help/confirmations

dengyong and everyone else contributing @ thread