Overclock.net banner

Need help soft vold modding a Gigabyte GTX 260, having trouble with it

961 Views 5 Replies 4 Participants Last post by  Voltage_Drop
Greetings. I have a GIGABYTE GV-N26SO-896I GeForce GTX 260.
Link on newegg: http://www.newegg.com/Product/Produc...82E16814125294

I'm having difficulty changing the voltages for this card. With NiBiTor 5.2 bios editing utility, the highest I can get the voltages is 1.18V, but I desire to get about 1.36V if possible. The voltage IC button is greyed out for me and I can't access it.

I was trying to use the hacked EVGA Voltage Tuner by AgentGod but it simply doesn't work for me, every time i click apply on a new voltage the meter simply resets and nothing happens. This is strange because people claim to get this hacked evga voltage tuner to work on Gigabyte GTX 260's.

I also tried to use rivatuner to use MSDOS to change the voltages but the Voltage regulator output doesn't show up for me like it does for other people. Even with the loaded VT1103.dll it doesn't show up. I've heard that all of these voltage methods are based on the VT11xx Volterra equipped cards, but I thought that the GTX 260's have these chips in them? Why am I having such a hard time modifying these voltages?

Ironically, Gigabyte has thier own set of video card overclocking software called the Gamer Hud Lite which claims to offer voltage tweaking, and i have seen screenshots of it where it DOES offer the voltage tweaking section, but when i install it it doesn't offer that section of the menu - it doesn't offer the voltage tweaking section at all!!

After some research on a program called Voltage Factory, the author claims it won't work on a GTX 260 with a 55nm manufacturing tech, which is what mine is. He says the soft volt mod will only work on GTX 260's with the 65nm tech. Is this because the 55nm GTX 260's don't have the Volterra voltage chips? Or do they?

Is there any way I can soft volt mod this card? Any help is greatly appreciated!! If it's not possible to soft volt mod this card, do you think I would see any major performance difference in getting a EVGA GTX 260 and soft volt modding that if the stock speeds were similar to the card I have now? Can anyone point me to the correct EVGA GTX 260?

Here is the bios of my card: http://rapidshare.com/files/31317807...byteGTX260.rom
See less See more
1 - 6 of 6 Posts
thats simply the highest your card's voltage can go through software voltage tuning, anything else you wnat done needs to be a hardware voltage mod

Originally Posted by tha d0ctor
View Post

thats simply the highest your card's voltage can go through software voltage tuning, anything else you wnat done needs to be a hardware voltage mod

Not entirely true.

EVGA Voltage Tuner can take a 260 up to 1400mV.


Is it any voltage you try and EVGA GVT resets it? Or over a certain point?

Also, are you trying the 1.0 version + patch or the 2.0 version?

EDIT: Nevermind, the 1.0 version doesn't support 55nm cards either. In which case tha d0ctor was correct for your situation. My bad.
See less See more
no offense taken
, im pretty sure there are plenty of volt mod tutorials out there and maybe even some pencil mod ones, I highly suggest a DMM (digital multi meter)
See less See more
I've been playing around with it and I finally finished overclocking it further in Rivatuner:

Gigabyte Geforce GTX 260 driver forceware 191.07 55nm tech
Core: 743 Mhz
Shaders: 1638 Mhz LINKED
Memory: 1282 Mhz

That's as high as I got, a single megahert more in any of those catagories will cause errors in furmark. I got 19294 3dmarks in 3Dmark06 paird with my e8400. I'm happy with the card, it's just that I wanted to experiment with the voltage changes that every other GTX 260 user is able to do as long as they have the 65nm version of that card.

I posted over at the nibitor forums in the hopes that someone would help me. http://www.mvktech.net/component/opt...7026/catid,13/
but I'm willing to accept this card for what it is, the other cards that have a working soft volt mod have lower stock speeds and are based on the 65 nm tech which consumes more power which means more heat for the same clocks. All in all i'm satisfied with it but i really wanted to play with the voltages as under load for 10 minutes at 100% fan speed it's only 63C which is rather cool for a stressed video card. I figure I have 20C at least to play with.

I've also heard from reading various forums over the past week that some cards don't respond well to voltage increases, for example some cards can't increase thier shaders past a certain point no matter what the voltage is. This also helps me feel better.

If you guys are saying that a carefully crafted bios file won't help me get a higher voltage, than it looks like it's the end of the road for me.
See less See more
highest you can softmod the 260GTX voltage to is 1.18V, but some cards show no increase in voltage after mod. You need a DMM like tha Doctor stated to measure the V before and after so you can see if it worked. A hardmod is your best bet if you are good with a solder gun. Though if you need help with the softmod I will be happy to answer any of your questions.

EDIT: Oh I see you have already got it at 1.18V, I missed that when I first read your thread. You need to do a hardmod then if you want any more increase out of it.

If you are interested in doing this yourself then I would be glad to help you do some research on it, or if you are nervous about doing it yourself then PM CL3P20 and I know he can do it for you for a small fee. CL3P20 does nice work and can mod any card.
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.