[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.

[Cecil]

Oh, and I am pretty sure the square 24pin one is for the GPU. All the other PCBs Ive seen look almost the same at the video out side of the card. And on the left, the mem was on the bottom left, and the GPU right above that. Only thing is, how to tell which pin it is.

[HITandRUN]

Originally Posted by Cecil

Oh, and I am pretty sure the square 24pin one is for the GPU. All the other PCBs Ive seen look almost the same at the video out side of the card. And on the left, the mem was on the bottom left, and the GPU right above that. Only thing is, how to tell which pin it is.

This is the problem! You will need the data sheet to figure this out.

[Cecil]

Originally Posted by HITandRUN

This is the problem! You will need the data sheet to figure this out.

I was agreeing, Ive looked all over and cant find anything.

Any ideas of any soft mods that might work? The GPU voltage tuner at XS didnt work. Not sure if any BIOSes increase that much.

For the memory, where do I check the actual voltage at?

[Cecil]

Any way of telling if its the right resistor by the resistance it has? Using a ground on the card and prodding some of them around the chip, most either do nothing, read 60 Ohm, a coupld in the 400s, one in the 200s, one in the 600s.