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Sapphire X1650 Pro vGPU & vMEM mod

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mAlkAv!An

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  • "mAlkAv!An" started this thread

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Location: Deutschland, Greifswald

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1

Wednesday, June 8th 2011, 9:03pm

Sapphire X1650 Pro vGPU & vMEM mod

Sapphire X1650 Pro DDR2 (512MB)


overview





vGPU mod

IC: RT9232B
resistance: 602 Ohm
voltage: 1.325V





vMEM mod

IC: RT9232B
resistance: 702 Ohm
voltage: 1.875V



Please note: using 20k VR's will already result in 580Ohm / 680Ohm at the minimum.



Mod Pics








GPU OC
stock voltage(1.325V) - 655MHz
max. voltage with stock cooling(1.525V) - 729MHz
new air cooler and 1.85V+ - 850MHz+ :cool:




With the little stock cooler I increased the GPU voltage to 1.5V for getting 702/442MHz:




After that time has come for a real air cooler :cool:
I used the Accelero TwinTurbo from AC and pushed the vGPU to 1.875V:

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Wednesday, June 8th 2011, 10:07pm

Hi and welcom mAlkAv!An at ocaholic!

Thanks a lot for sharing your mods here ! :3
Sys 1 Arbeitsviech: Gigabyte X58A-UD7, Core i7 920 @ 3.6GHz, ATI Radeon HD 6970, 6 GB Corsair Dominator DDR3 1600, OCZ Vertex 3 240 GByte SSD, 750 GB Samsung HDD
Sys 2 Linux Server: Gigabyte X48-DQ6, QX6850, Billige Graka, 4 GB DDR3, 1 x 36 GB WD Raptor, 6 x 2TB, 2 x 1.5 TB
MacBook Pro 13 Zoll, 8 GB RAM, Samsung PM 830 256 GB SSD

Christian Ney

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Wednesday, June 8th 2011, 10:14pm

He made ​​me want to do the mods for all my cards :neo: even the dead ones :kopfantisch:

mAlkAv!An

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Location: Deutschland, Greifswald

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4

Wednesday, June 8th 2011, 10:16pm

Hi and thanks for the welcome :thumbsup:

I have some more mods here on my hd, most in english and german, but I guess one thread per mod is enough - pics say it all :)



Quoted from "Christian Ney"

He made ​​me want to do the mods for all my cards :neo: even the dead ones :kopfantisch:

Thats very good. I like voltmods alot and if this encourages others it's even better :matrix:

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Wednesday, June 8th 2011, 10:17pm

Sure. Just feel free to post anything you like :) :sidious:
Sys 1 Arbeitsviech: Gigabyte X58A-UD7, Core i7 920 @ 3.6GHz, ATI Radeon HD 6970, 6 GB Corsair Dominator DDR3 1600, OCZ Vertex 3 240 GByte SSD, 750 GB Samsung HDD
Sys 2 Linux Server: Gigabyte X48-DQ6, QX6850, Billige Graka, 4 GB DDR3, 1 x 36 GB WD Raptor, 6 x 2TB, 2 x 1.5 TB
MacBook Pro 13 Zoll, 8 GB RAM, Samsung PM 830 256 GB SSD

Christian Ney

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Wednesday, June 8th 2011, 10:25pm

Quoted from "mAlkAv!An"

Quoted from "Christian Ney"

He made ​​me want to do the mods for all my cards :neo: even the dead ones :kopfantisch:

Thats very good. I like voltmods alot and if this encourages others it's even better :matrix:
My first mods are the ones I already posted here (with Asus' samples :P ) and when you know how to find by yourself a mod it becomes really easy and enjoyable. It also improve the overvlovking for sure :pod: . Now that I am on extreme cooling I have to mod all my cards, and I will continue to post them here ;)

mAlkAv!An

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Wednesday, June 8th 2011, 10:55pm

If you can figure out a vmod you're on a very good way. Many people want to do voltmods but are to lazy to learn what it takes to figuring out the mods.

My gfx mod counter is somewhere around 50, but don't be afraid - I don't have mod guides for all of them :tot:

Christian Ney

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Wednesday, June 8th 2011, 11:12pm

I learned from K404 and S_A_V the basis (aka buy a solder kit :) ) then I now do my own mods as most of my cards are non reference PCB. Sometimes datasheets of chips are missed on google but when you know how it works then you can easily find the FB and GND.

With DMM, really easy to find volt masures points. But with my dead cards it will be a bit harder :p

My first mod, I made the shema, and I mixed vmem and vmod, I saw that when I measured the voltage :P

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