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7900GS/GT Core Volt mod OVER 1.55v ???

post #1 of 10
Thread Starter 
I completed the 1.55v core volt mod as well as the memory volt mod. My core temps still have room.

I'm wondering if there is another mod that would let me go behond 1.55v ?
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post #2 of 10
Thread Starter 
We'll I found this mod online, but it requires changing/soldering a new resistors on the back of the video card with a new 50K ohm resistor and then removing two other resistors and then tracing 1 or 2 lines (1.6v or 1.7v) with conductive ink (just as in the regular 1.3/1.4/1.55 volt mod)

I wouldn’t' mind just removing 2 resistor, but welding a new 50K ohm resistor is really out of my league.

Is there another way of increasing the voltage further? or has any one tried this particular mod?

http://forumz.tomshardware.com/hardw...ict180344.html
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post #3 of 10
So far as I know this is the only way. I never seriously considered this because, as you said, it is out of my league and there would be no way to RMA it. It also just seems like a lot of effort...

I am just happy with a 150% of the stock speed for relatively little work.
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by Artmasterx View Post
So far as I know this is the only way. I never seriously considered this because, as you said, it is out of my league and there would be no way to RMA it. It also just seems like a lot of effort...

I am just happy with a 150% of the stock speed for relatively little work.
It’s also out of my league, I guess I could learn or practice on another card first, I have a really steady hand... I surpised myself by doing the basic mod on this card. The next problem is that I don't have the tools .

I know this guy who's been working with electrical components all of his life, TV screens, VCR's, DVD's, sound systems, even pc's. I'm starting to wonder if I should give him a call and offer him a few bucks to do the mod for me. At least change the 1 resistor and remove the other two. I could then choose the 1.6v or the 1.7 GPU volt, I know that this part of the mod is identical to the 1.3/1.4/1.5/1.55 mod.

As far as RMA.... if he does a clean enough job, the resistors involved are so small do you think EVGA would even notice? has any one RMA'd a modified card like this before?
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post #5 of 10
its not that hard guys, get yourself a good magnifier so you can see what your doing, look up some guides on soldering, get a old circuit board or card that doesnt work any more and practice a little and youll be good to go

i had never soldered before and my first shot was with the asus a8v, i did the vcore solder job and that was really hard but since then i have soldered all kinds of things from resisters to fan connectors and stuff like that, it gets easier once you do a few
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post #6 of 10
Thread Starter 
Where in the heck do you guys buy the resitors for these types of mods any ways???
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post #7 of 10
Thread Starter 
I understand the 1.7V instructions, but I'm not sure about 1 part.

It says to remove the 2 over current protection resistors, but once you've removed them, do you add or fill in the empty space with a bit of soldering material or conductive ink so the current goes straight through or do you leave the space empty?
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post #8 of 10
What is the max you can reach on 1.55?
    
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post #9 of 10
Thread Starter 
Max was 717Mhz, but I braught it down to 710Mhz in order to make sure I have no problems during gaming.

From what I've read 710Mhz is pretty much the standard for 1.55v

I'd really like to try reaching 1.7v/800Mhz core speed

Did any one on this forum actualy do this mod?
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post #10 of 10
my card at 1.5 reaches 770 mhz or so but artifacts on atitool but in 3dmark06 hardly any artifacts on the screen and scores 6600 for games i do 700mhz.
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SABERWOLF
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F3-12800CL9S-4GBRL WDC WD1001FALS-00J7B1 ST31000340AS WDC WD7500AAKS-00RBA0 
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Hitachi HDS723020BLA642 ihas 624-A SilverStone Heligon HE01 windows 10 64 Pro 
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