Complete R7 260X volt modding guide

[buildzoid]

I know I've already done 2 other post on volt modding the R7 260X. However none of them are complete and one of them is plain wrong and just like the saying goes 3rd time's the charm so here's a guide made after I actually went and tested everything. If you don't know anything about hardware volt modding do not try this. If you do something wrong your card will be bricked before your brain registers it(your brain takes 5about ms to process visual stimulus). I will make a post about volt modding basics some time soon but not now. Also I'm taking down the 2 old post because of the before mentioned reasons.
So lets run down the VRM setup of the R7 260X.






Here you have the important controller pinouts. For the FB Vcore a 22K ohm variable resistor from the pin to GND will get you a starting voltage of about 1.3V under load. For the FB aux a 22K ohm variable resistor from the pin to GND will give 1.05V under load. Cut the pins or the traces connected to the pins labeled ILIM to disable over current protection for that VRM.So if you cut ILIM AUX the AUX VRM from the first picture will no longer have a power limit.


The VRAM voltage controller is a super simple controller and does not have over current protection. All you need to do to get it under manual control is to hook it up to a 220K ohm variable resistor to get a starting voltage of about 1.585V-1.6V regardless of load.

I took all the images used in this guide from W1zz's review of the R7 260X.

You can find more articles like this one on my blog which I have linked in my signature.

 

[Frogger]

Short sweet & simple. Nice work.

 

[FreedomEclipse]

Did you try overclocking the card afterwards? Id like to see how it compares to faster cards.

 

[buildzoid]

Did you try overclocking the card afterwards? Id like to see how it compares to faster cards.

I only use the card for benchmarking and I did the VRAM voltage with 22K pot which gives me 1.9V VRAM which is too high for my tastes. At 1.45V the card does 1450mhz core possibly more. I didn't test higher core clocks because the VRAM got stuck at 1675mhz and was bottle necking the core too much. Once I get a 220K ohm pot I'll try the card again.

 

[OneMoar]

Did you try overclocking the card afterwards? Id like to see how it compares to faster cards.

not well even at >1200Mhz core its still a dog on leash
assuming you could push it to 1500Mhz it would still be slower then a 270x
just doesn't have the bandwidth