[Cecil]

My 9800GTs dont seem to exsist. No picture online matches them, even though its the same P/N as the one on Galaxy's website and newegg. The differences are, different heatsink, differnt location of the 6pin, and possibly shorter card (mine are 8in, maybe a little less).

http://www.galaxytechus.com/usa/productview.aspx?id=77

http://www.newegg.com/Product/ShowIm...d%20-%20Retail

The parts on the back of the PCB are different then the newegg one. Will take a picture with my camera, but it wont be a high quality pic.

Anyway, looking for the voltage read and mod points.

EDIT:
Pics
http://i31.tinypic.com/biuede.jpg
http://i26.tinypic.com/2lvboyd.jpg
http://i26.tinypic.com/14t7p0k.jpg
http://i29.tinypic.com/2mqjexy.jpg
http://i25.tinypic.com/4ui7v4.jpg
http://i31.tinypic.com/o0ozb.jpg

[Cecil]

I think the far left chip is the one I need, but not 100% sure. Also not sure if 10k VR will work.

http://i26.tinypic.com/29fy1x2.jpg

http://www.alldatasheet.com/datashee...K/RT9259A.html

[HITandRUN]

Originally Posted by Cecil

I think the far left chip is the one I need, but not 100% sure. Also not sure if 10k VR will work.

http://i26.tinypic.com/29fy1x2.jpg

http://www.alldatasheet.com/datashee...K/RT9259A.html

This is the voltage regulator for your ram mate. Measure pin # 4 to pin # 7 and let me know the resistance. The core voltage regulator must be on the other side of the board. I assume the used the same one as on the 8800GT. Must be like a 42 pin IC. Let me look it up in my old info stash.


EDIT: Did they used the L6713A for the core?

[Cecil]

Originally Posted by HITandRUN

This is the voltage regulator for your ram mate. Measure pin # 4 to pin # 7 and let me know the resistance. The core voltage regulator must be on the other side of the board. I assume the used the same one as on the 8800GT. Must be like a 42 pin IC. Let me look it up in my old info stash.


EDIT: Did they used the L6713A for the core?

I googled the top right chip in the pick, and it says its a mem chip. All the other 9800GT vmods Ive seen are the square chip with tons of pins. The only one like that is about an inch above the far left one. But has a lot less pins.

The far left one pin 4 and 7 is wierd. Not sure if its not making good contact or if my DMM is bad. It starts at 1, then when I touch it will read some random number for a second then go back to 1.

EDIT: 570 ohm pin 4 to 7.

[Cecil]

http://www.datasheetcatalog.org/data...a9huwdqscy.pdf

For top right

http://datasheet.digchip.com/000/000-1-AT88SC.pdf

Bottom right

http://www.alldatasheet.com/view.jsp?Searchword=ACT08

Far right


This is the same card, and same PCB, except mine has a 6pin connector, and this does not. And mine are at the default 600/900 clocks.
http://hardwarebistro.com/index.php?...r-512MB-Review

[HITandRUN]

Originally Posted by Cecil

I googled the top right chip in the pick, and it says its a mem chip. All the other 9800GT vmods Ive seen are the square chip with tons of pins. The only one like that is about an inch above the far left one. But has a lot less pins.

The far left one pin 4 and 7 is wierd. Not sure if its not making good contact or if my DMM is bad. It starts at 1, then when I touch it will read some random number for a second then go back to 1.

The voltage controllers with a lot of pins are the ones for the core voltage. I assume the comp is turned off while taking the mesurments?

[Cecil]

Originally Posted by HITandRUN

The voltage controllers with a lot of pins are the ones for the core voltage. I assume the comp is turned off while taking the mesurments?

I pulled one of the cards out, and have been using that.

The one above the far left one says
BN-BD
M23

and has 24 pins, 6 on each side.

[Cecil]

http://www.alldatasheet.com/datashee...OLA/LM358.html

Thats on the front of the card.


Also, they are 55nm ones, GPU-Z just cant tell.

[HITandRUN]

Originally Posted by Cecil

I pulled one of the cards out, and have been using that.

The one above the far left one says
BN-BD
M23

and has 24 pins, 6 on each side.

Well I assume the IC above the memory controller runs the voltage to the core of the card but it is hard to say for sure with our the data sheet and an actual trial and fail procedure since I can’t find anybody else who has done this already. Are you planning to voltmod the memory as well and is this your thread? Looks like you say that the resistance you have there is 570 Ohms so a 10 or 15Kohm VR should do the job for you on the memory.

[Cecil]

Originally Posted by HITandRUN

Well I assume the IC above the memory controller runs the voltage to the core of the card but it is hard to say for sure with our the data sheet and an actual trial and fail procedure since I can’t find anybody else who has done this already. Are you planning to voltmod the memory as well and is this your thread? Looks like you say that the resistance you have there is 570 Ohms so a 10 or 15Kohm VR should do the job for you on the memory.

I can do the mem too, they only hit 1050Mhz.
I have two 10k VRs, so Ill just use them in the mem. Do I just solder it to pin 4 and pin 7?
It is my thread.