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GT 430 volt mod assistance

post #1 of 8
Thread Starter 
Hi everybody, I recently picked up a GT 430 for $3 from my college surplus store and I am using it as a learning experience for volt-modding. I am not worried about frying the card or causing other damage to it...
I have gotten stable core clock all the way up 880MHz on OEM voltage (1.080v I believe) which is pretty good from what I have read.

I have circled what I believe is the correct IC... It's hard to see in the picture but it says uP1563P and PXA14S beneath it. I've searched this part number and there are no pinouts that I can find but I did come up with a couple other threads, in different languages, one was a GT210 voltmod and one a GT610 voltmod. Any help is much appreciated!

post #2 of 8
Would totally help you but I can't find any data on the chip. Also try finding other similar chips on the card and post the chip models here. Most cheap cards user a cheap generic chip for memory voltage control so you could easily mod that.
post #3 of 8
The GPU voltage buck controller is on the front of the pcb. It's not the exact same card but it should be around here somewhere:


Post what it has written on it. A good picture of the front of the PCB would be helpful as well.
Edited by DR4G00N - 7/30/16 at 6:53am
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The Banshee
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post #4 of 8
Thread Starter 
Here is a photo of the front of the PCB, let me know if you need a full one with the cooling block taken off. The chip I circled looks most similar to the one you posted and it reads;

FP6329
G1114
13W3D


post #5 of 8
That looks to be the one you want.

Here's the pinout:

And the datasheet: http://www.clubedohardware.com.br/datasheets/FP6329.pdf

Pin #1 is the one closest to the circle/dimple on the IC.

Now all you need to do is measure the resistance of the FB (Feedback) pin to GND using a multi meter in order to figure out what size VR you need.
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A bunch more Slot 1, S370 & S462/A CPU's. Z87 OC Formula. Plus 30 or so other mobo's. Waaaay too many to list... A table full of SDR, DDR1, DDR2 & DDR3 
Hard DriveCoolingCoolingCooling
500GB WD Caviar Blue  Bartx DICE/LN2 CPU Pot Sub-zero A/C waterchiller (-26C) CM Hyper 212+ (Troubleshooting) 
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post #6 of 8
Thread Starter 
Awesome, thanks for your help, I will measure the resistance later today.
post #7 of 8
Thread Starter 
I'm getting 369 ohms, does that sound about right?
post #8 of 8
Sounds good to me. Now you just multiply the FB pin resistance by 20 and round up the resulting number to the nearest increment of 5000.

369 Ohm * 20 = 7380 Ohm, so you would want to use a 10K Ohm Variable Resistor / Potentiometer for this one.

BTW before you go to solder the VR onto it make sure the VR is set @ 10K Ohm. And once you do solder it on check the resistance from FB to GND to make sure it's not too low, it should be around what it was before you soldered the VR onto it. thumb.gif
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Thermaltake Challenger  EVGA 1300 G2 Fractal Design Arc XL Evga Torq X3 
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Steel series QCK+ Turtle Beach X12 Logitech G27 
CPUCPUCPUCPU
1150: i7 4770K & G3258 939 & 754: Many Athlon's, Opteron's & Sempron's  775/771: Many C2's, Pentiums, Celerons & Xeons 1366: i7 920 D0 and many 4c & 6c Xeon's 
CPUMotherboardGraphicsRAM
A bunch more Slot 1, S370 & S462/A CPU's. Z87 OC Formula. Plus 30 or so other mobo's. Waaaay too many to list... A table full of SDR, DDR1, DDR2 & DDR3 
Hard DriveCoolingCoolingCooling
500GB WD Caviar Blue  Bartx DICE/LN2 CPU Pot Sub-zero A/C waterchiller (-26C) CM Hyper 212+ (Troubleshooting) 
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All of them. ;) Samsung S20B300 Evga SuperNova 850 B2 Homemade wooden test bench 
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The Banshee
(23 items)
 
Under the DICE
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CPUMotherboardGraphicsRAM
R7 1700 ASRock X370 Taichi Zotac GTX 780 Ti OC @ 1250/1950MHz 1.212V G.SKILL Trident Z Black/White 2X8GB DDR4-3200 C... 
Hard DriveHard DriveCoolingCooling
Corsair Force LS 120GB WD Blue 1TB Phobya UC-2 LT XSPC Razor GTX 780 Ti Waterblock w/ Backplate 
CoolingCoolingCoolingCooling
Darkside LP 360mm Radiator Alphacool ST30 240mm Radiator Darkside D5 Vario @ 12V Setting 5 Bitspower Z-Multi 150 Red Reservoir  
CoolingCoolingOSMonitor
Darkside (TFC) 3/8 ID X 5/8 OD Red UV tubing TFC Black straight barb fittings Windows 8.1 Pro 64-bit LG 25UM57-P 
KeyboardPowerCaseMouse
Thermaltake Challenger  EVGA 1300 G2 Fractal Design Arc XL Evga Torq X3 
Mouse PadAudioOther
Steel series QCK+ Turtle Beach X12 Logitech G27 
CPUCPUCPUCPU
1150: i7 4770K & G3258 939 & 754: Many Athlon's, Opteron's & Sempron's  775/771: Many C2's, Pentiums, Celerons & Xeons 1366: i7 920 D0 and many 4c & 6c Xeon's 
CPUMotherboardGraphicsRAM
A bunch more Slot 1, S370 & S462/A CPU's. Z87 OC Formula. Plus 30 or so other mobo's. Waaaay too many to list... A table full of SDR, DDR1, DDR2 & DDR3 
Hard DriveCoolingCoolingCooling
500GB WD Caviar Blue  Bartx DICE/LN2 CPU Pot Sub-zero A/C waterchiller (-26C) CM Hyper 212+ (Troubleshooting) 
OSMonitorPowerCase
All of them. ;) Samsung S20B300 Evga SuperNova 850 B2 Homemade wooden test bench 
Mouse
Microsoft comfort mouse 3000 
  hide details  
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