Help with volt mod please

Welshsteel · Mar 13, 2008

I have a Sparkle Non-reference (blue pcb) 8800GT and i am in the process of volt modding it.

My problem is i am missing one important aspect; i don't know where the ground points are on my board.

I have figured out everything else, i have my resistance measured and the correct potentiometer. I know my vGPU read points my solder point on the phase controller just don't know where the ground points are. :banghead:

Can anyone help? Here is some pictures of the area around the phase controller.

The first two pics aren't very good, sorry. The second two are ok though.

pagalms · Mar 13, 2008

Easyest way is to use power connector's pin, where black wire comes in.

Welshsteel · Mar 13, 2008

Cheers for replying no one replyed to my first post :cry:

There are six pins which one do i use?

pagalms · Mar 13, 2008

The top ones

DaMulta · Mar 13, 2008

Can you give close up shots when you are done?

http://img162.imageshack.us/my.php?image=modfinalgo2.jpg

Welshsteel · Mar 13, 2008

pagalms said:
The top ones

Cheers for the info, i'm doing the mod tonight ill post some pics and 3d mark 6 results when its done.

Welshsteel · Mar 13, 2008

Actually are you sure the top ones are ground in this pic the potentiometer is grounded to the bottom pins. I think?

Welshsteel · Mar 13, 2008

Ok i see what you mean the three black cables next to the clip (bottom when connected to card) are the ground points. Once again thanks.

DaMulta · Mar 13, 2008

can you take closer pics like you did at the top?

Thanks

I think you can use any ground you want to on the card, just pick one.

Also what potentiometer did you end up using?

Welshsteel · Mar 14, 2008

I am ashamed to be writing this post.

The Solder went well! Used a 50k potentiometer to the FB pin and to ground on the power connecter. I admired my work for a bit.........

On installation i dropped the f#@*ing card, the wire got caught and it pulled the solder point off which by the looks of things has dislodged the FB solder point and damaged the PCB track!! :eek:

I don't know what to do?

I have tried to fix the track with conductive silver paint, but i dont if this will work.
Will this hurt anything else if i put it in my machine to see if the fix worked.

Or have i just destroyed my card?

I can post pics of my repair.

This is not plesent!

DaMulta · Mar 14, 2008

only one way to find out plug it in.

take some pics

sorry that happened to you

The Haunted · Mar 14, 2008

Welshsteel said:
On installation i dropped the f#@*ing card, the wire got caught and it pulled the solder point off which by the looks of things has dislodged the FB solder point and damaged the PCB track!!

Same kind of thing happened to me, the card is still working and i used another solder point

Welshsteel · Mar 14, 2008

The bottom right side of the chip. You can see the silver paint if you zoom in.

I'm going to plug it in latter this morning after one more coat of silver paint.

Need to make sure the silver paint isn't bridging any solder points.

Welshsteel · Mar 14, 2008

Heres some pics

System Name	1st BUILD!
Processor	Q6600 GO @ 3.8 Ghz.... for now
Motherboard	Asus P5K Premium
Cooling	OCZ Vendetta 2. HR03GT. 6 x 12cm case fans
Memory	2x1gigs Crucial Ballistic @ 1100
Video Card(s)	MSI 8800GT @ 756/1856/2100
Storage	OS - raptor + 2 x WD250
Case	CM690 6 low noise fans
Audio Device(s)	X-FI extreme
Power Supply	Silverstone Zeus 750
Software	XP all the way! 3DMARK06 - 15975

Processor	AMD Athlon 64 X2 4400+ lapped @3,0GHz
Motherboard	Gigabyte GA-MA785GM-US2H
Cooling	Xigmatek HDT-D1264
Memory	2GB Crucial Ballistix Tracer
Video Card(s)	Xpertvision 8800GTS 640MB G80
Storage	250GB Seagate Barracuda & 750GB Samsung
Display(s)	Samsung Syncmaster 931BF
Case	Coolermaster CM690
Audio Device(s)	Realtek ALC889A
Power Supply	HEC WinPower 550W
Software	Ubuntu 10.04 x86 & Windows 7 x86
Benchmark Scores	I'm scared of benching

System Name	1st BUILD!
Processor	Q6600 GO @ 3.8 Ghz.... for now
Motherboard	Asus P5K Premium
Cooling	OCZ Vendetta 2. HR03GT. 6 x 12cm case fans
Memory	2x1gigs Crucial Ballistic @ 1100
Video Card(s)	MSI 8800GT @ 756/1856/2100
Storage	OS - raptor + 2 x WD250
Case	CM690 6 low noise fans
Audio Device(s)	X-FI extreme
Power Supply	Silverstone Zeus 750
Software	XP all the way! 3DMARK06 - 15975

Processor	AMD Athlon 64 X2 4400+ lapped @3,0GHz
Motherboard	Gigabyte GA-MA785GM-US2H
Cooling	Xigmatek HDT-D1264
Memory	2GB Crucial Ballistix Tracer
Video Card(s)	Xpertvision 8800GTS 640MB G80
Storage	250GB Seagate Barracuda & 750GB Samsung
Display(s)	Samsung Syncmaster 931BF
Case	Coolermaster CM690
Audio Device(s)	Realtek ALC889A
Power Supply	HEC WinPower 550W
Software	Ubuntu 10.04 x86 & Windows 7 x86
Benchmark Scores	I'm scared of benching

System Name	Work in progress
Processor	AMD 955---4Ghz
Motherboard	MSi GD70
Cooling	OcZ Phase/water
Memory	Crucial2GB kit (1GBx2), Ballistix 240-pin DIMM, DDR3 PC3-16000
Video Card(s)	CrossfireX 2 X HD 4890 1GB OCed to 1000Mhz
Storage	SSD 64GB
Display(s)	Envision 24'' 1920x1200
Case	Using the desk ATM
Audio Device(s)	Sucky onboard for now :(
Power Supply	1000W TruePower Quattro

Help with volt mod please

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System Name	Slave
Processor	Core i7 920 @4.2 Lapped
Motherboard	Biostar Tpower x58
Cooling	Ek Supreme + Backplate, Thermochill 120.3, mcp655
Memory	6Gb Gskill Black Pi ddr3 1600 8-7-7-19 1t
Video Card(s)	XFX R9 290 (flashed to 290x) + DTek Fuzion block @1100
Storage	Samsung 840 evo, WD Black
Display(s)	Asus PB278Q 1440p
Case	p180b
Audio Device(s)	Creative X-Fi Extreme P.O.S.
Power Supply	Enermax Revolution 85+ 950watt
Benchmark Scores	i7 920 c0 @ 4.6ghz