• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Complete R7 260X volt modding guide

Joined
Oct 29, 2012
Messages
1,926 (0.46/day)
Location
UK
System Name TITAN Slayer / CPUCannon / MassFX
Processor i7 5960X @ 4.6Ghz / i7 3960x @5.0Ghz / FX6350 @ 4.?Ghz
Motherboard Rampage V Extreme / Rampage IV Extreme / MSI 970 Gaming
Cooling Phanteks PHTC14PE 2.5K 145mm TRs / Custom waterloop / Phanteks PHTC14PE + 3K 140mm Noctuas
Memory Crucial 2666 11-13-13-25 1.45V / G.skill RipjawsX 2400 10-12-12-34 1.7V / Crucial 2133 9-9-9-27 1.7V
Video Card(s) 3 Fury X in CF / R9 Fury 3840 cores 1145/570 1.3V / Nothing ATM
Storage 500GB Crucial SSD and 3TB WD Black / WD 1TB Black(OS) + WD 3TB Green / WD 1TB Blue
Display(s) LG 29UM67 80Hz/Asus mx299q 2560x1080 @ 84Hz / Asus VX239 1920x1080 @60hz
Case Dismatech easy v3.0 / Xigmatek Alfar (Open side panel)
Audio Device(s) M-audio M-track / realtek ALC 1150
Power Supply EVGA G2 1600W / CoolerMaster V1000 / Seasonic 620 M12-II
Mouse Mouse in review process/Razer Naga Epic 2011/Razer Naga 2014
Keyboard Keyboard in review process / Razer Blackwidow Ultimate 2014/Razer Blackwidow Ultimate 2011
Software Windows 7 Ultimate / Windows 7 ultimate / Windows 7 ultimate
Benchmark Scores cinebench 15.41 3960x @ 5.3ghz Wprime32m 3.352 3960x @ 5.25ghz Super PI 32m: 6m 42s 472ms @5.25ghz
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.
 
Joined
Feb 12, 2006
Messages
2,318 (0.35/day)
System Name MONEY PIT
Processor i7-3770K @ 4800 1.20v batch #3231B415 Delided
Motherboard ASrock Z77 OC Formula w onboard waterblocks
Cooling Apogee HD, MCP655,rad MCR320-XP,Micro Rev2 res
Memory G,skill Trident X F3-2400C10D-16GTX
Video Card(s) EVGA GTX 980 Ti Classified with EK nickel/acetal waterblock installed
Storage 2x120gig Wildfire raid0 2x120gig VERTEX3 raid0
Display(s) 3/ Samsung2343bwx + 65in LG 4K
Case NZXT Phantom White w/red
Audio Device(s) ReCon3d fatal1ty pro, Logitech z906 THX
Power Supply corsair AX860i
Mouse Rat7
Software 64bit ++++ win 10
Short sweet & simple. Nice work.
 

FreedomEclipse

~Technological Technocrat~
Joined
Apr 20, 2007
Messages
23,380 (3.76/day)
Location
London,UK
System Name Codename: Icarus Mk.VI
Processor Intel 8600k@Stock -- pending tuning
Motherboard Asus ROG Strixx Z370-F
Cooling CPU: BeQuiet! Dark Rock Pro 4 {1xCorsair ML120 Pro|5xML140 Pro}
Memory 32GB XPG Gammix D10 {2x16GB}
Video Card(s) ASUS Dual Radeon™ RX 6700 XT OC Edition
Storage Samsung 970 Evo 512GB SSD (Boot)|WD SN770 (Gaming)|2x 3TB Toshiba DT01ACA300|2x 2TB Crucial BX500
Display(s) LG GP850-B
Case Corsair 760T (White)
Audio Device(s) Yamaha RX-V573|Speakers: JBL Control One|Auna 300-CN|Wharfedale Diamond SW150
Power Supply Corsair AX760
Mouse Logitech G900
Keyboard Duckyshine Dead LED(s) III
Software Windows 10 Pro
Benchmark Scores (ノಠ益ಠ)ノ彡┻━┻
Did you try overclocking the card afterwards? Id like to see how it compares to faster cards.
 
Joined
Oct 29, 2012
Messages
1,926 (0.46/day)
Location
UK
System Name TITAN Slayer / CPUCannon / MassFX
Processor i7 5960X @ 4.6Ghz / i7 3960x @5.0Ghz / FX6350 @ 4.?Ghz
Motherboard Rampage V Extreme / Rampage IV Extreme / MSI 970 Gaming
Cooling Phanteks PHTC14PE 2.5K 145mm TRs / Custom waterloop / Phanteks PHTC14PE + 3K 140mm Noctuas
Memory Crucial 2666 11-13-13-25 1.45V / G.skill RipjawsX 2400 10-12-12-34 1.7V / Crucial 2133 9-9-9-27 1.7V
Video Card(s) 3 Fury X in CF / R9 Fury 3840 cores 1145/570 1.3V / Nothing ATM
Storage 500GB Crucial SSD and 3TB WD Black / WD 1TB Black(OS) + WD 3TB Green / WD 1TB Blue
Display(s) LG 29UM67 80Hz/Asus mx299q 2560x1080 @ 84Hz / Asus VX239 1920x1080 @60hz
Case Dismatech easy v3.0 / Xigmatek Alfar (Open side panel)
Audio Device(s) M-audio M-track / realtek ALC 1150
Power Supply EVGA G2 1600W / CoolerMaster V1000 / Seasonic 620 M12-II
Mouse Mouse in review process/Razer Naga Epic 2011/Razer Naga 2014
Keyboard Keyboard in review process / Razer Blackwidow Ultimate 2014/Razer Blackwidow Ultimate 2011
Software Windows 7 Ultimate / Windows 7 ultimate / Windows 7 ultimate
Benchmark Scores cinebench 15.41 3960x @ 5.3ghz Wprime32m 3.352 3960x @ 5.25ghz Super PI 32m: 6m 42s 472ms @5.25ghz
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

There is Always Moar
Joined
Apr 9, 2010
Messages
8,746 (1.70/day)
Location
Rochester area
System Name RPC MK2.5
Processor Ryzen 5800x
Motherboard Gigabyte Aorus Pro V2
Cooling Enermax ETX-T50RGB
Memory CL16 BL2K16G36C16U4RL 3600 1:1 micron e-die
Video Card(s) GIGABYTE RTX 3070 Ti GAMING OC
Storage ADATA SX8200PRO NVME 512GB, Intel 545s 500GBSSD, ADATA SU800 SSD, 3TB Spinner
Display(s) LG Ultra Gear 32 1440p 165hz Dell 1440p 75hz
Case Phanteks P300 /w 300A front panel conversion
Audio Device(s) onboard
Power Supply SeaSonic Focus+ Platinum 750W
Mouse Kone burst Pro
Keyboard EVGA Z15
Software Windows 11 +startisallback
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
 
Top