9600GT voltmod thread

[PizzaMan]

ohhh,
Perhaps I understood:asd:
o stabilize the voltage should I use this additional mod?

sorry, i have a little english and do not quite understand everything you say
but thank yor for your help:ok:

You go it,Put a 100K VR between that point and ground.

I notice you don't have any vGPU measure points soldered. Here they are: http://www.techpowerup.com/articles/..._back_1024.jpg

[palli.90]

You go it,Put a 100K VR between that point and ground.

I notice you don't have any vGPU measure points soldered. Here they are: http://www.techpowerup.com/articles/..._back_1024.jpg

i have not a tester
i must buy it!

but with this new mod,
have i only more voltage
or
have i more precision?

sorry for all my questions

[PizzaMan]

i have not a tester
i must buy it!

but with this new mod,
have i only more voltage
or
have i more precision?

sorry for all my questions

Yes, get yourself a multimeter.

You will gain both voltage and precision.

Also, you can add caps to the two power phases to increase stability at high clocks.

[palli.90]

very good
what type of cap must i buy?

VR 100k is it a trimmer or a simple resistance?

[PizzaMan]

very good
what type of cap must i buy?

VR 100k is it a trimmer or a simple resistance?

VR = Variable resistor, trimmer, potentiometer.

Any solid cap. 2.5-6v with a uF rating of 800-1000. You can find them on old mobos and graphic cards.

[palli.90]

VR = Variable resistor, trimmer, potentiometer.

Any solid cap. 2.5-6v with a uF rating of 800-1000. You can find them on old mobos and graphic cards.

sorry, i don't know.

f...k, throw a motherboard yesterday.
next week, i will go in a
electronics store for buy the trimmer,
i think that shop has a caps
i hope.

i must buy a molex sò i make a point of scanning for a tester!

[palli.90]

Today, i buy a simple resistence to 100kohm.

But i don't find the caps

[PizzaMan]

The resistor is a trimmer right?

Don't worry about the caps. It's more of a finesse mod.

[palli.90]

no, resistor is not a trimmer but a simple resistor.

[PizzaMan]

Well, a trimmer would have given you the precision to adjust the voltage on the fly. Adding the 100K resistor should give ~.05v increase from currant VID.

BTW, from my personal experience 100K trimmer works better for vMEM the the 200K. If you will check, the 200K trimmer will be tuned well below 100K to get vMEM above 2.0v


WOW, that's a lot of glue.

[CL3P20]

Whoa... Did you sneeze on the PCB by accident..?!

[palli.90]

Well, a trimmer would have given you the precision to adjust the voltage on the fly. Adding the 100K resistor should give ~.05v increase from currant VID.

BTW, from my personal experience 100K trimmer works better for vMEM the the 200K. If you will check, the 200K trimmer will be tuned well below 100K to get vMEM above 2.0v


WOW, that's a lot of glue.

ok,
100k is better that 200k!
On memory there is a trimmer, when i have a tester, i change from 200 to 100!

I know that the simple resistence is fixed, so i have always 0.5+, but i can change vid by switch dip (from 1.20 to 1.50). I can have maximum of 1.55 right?

maybe i have find the caps, i destroy girlfriend's motherboard!!!

one question.
must i use tester when vga is on! or when vga is off?

[palli.90]

good, i destoy a motherboard.
Now i find some type of caps:
6.3v 1500uF
6.3v 820uF
16v 1000uF
6.3 330uF
6.3 680uF

and
a red and grey caps with2.5v 551 821

what caps is right?

[PizzaMan]

The 6.3v 820uF caps should do nicely.

You need to test card's voltage while the card is operating.

[palli.90]

very good!!!!!
at thusday to monday i will stay to university. When i will come back, i finish the mod! e i do some extreme bech with SS!

[palli.90]

one problem

How should I position the condensing
there's one place in particular? and how can I put it?

points are circled in red free


the last one
on the cap there is a gray strips are gray, this side is the ground, right?

[CL3P20]

You just need to put a cap or 2x on those GPUv points...I like to set them at an angle, and solder them in.. and yes, the side with the stripe is ground. Here is a better pic of some caps installed on a 4850...

[PizzaMan]

Here's another pics of my caps. Again, I really like your switch for adjusting VID on the fly. Very nice.

http://i170.photobucket.com/albums/u...l/100_1234.jpg

[palli.90]

ok
i put 2 caps in the 2 red circle of last my photo!

but there is only one different,
i find normal electrolytic caps, this 6.3v 820uF


you use only solid caps!
is there many different?

now i have only one type of solid cap, but it is 2.5V 551 821

[PizzaMan]

Use the 2.5v caps

[CL3P20]

I have swapped out caps a few times on my 8800GS...and havent been able to tell if some work better than others or not. Testing with max vcore and clocks though, yield another 30-50mhz for me with caps of any kind on my 2x output phases for GPUv...I think the 2.5v caps will work good as well.

@ Pizza- thought I'd come hang out on your thread over here :p

[palli.90]

ok boys!

the red caps are on pcb motherboard, there is a way to remove?

[PizzaMan]

Touch your iron to the points underneath the board to free the caps.

[CL3P20]

I use a mini-torch to get 'em out...the OEM solder is sometimes pretty hard to heat up...either way will work though.

[PizzaMan]

Yes, the VR mod will give you greater precision on the amount of voltage you are giving the card. Sorry for the late response. How is your mod going?


Here's some update from those with other PCB designs.

Zotac VR mod points

Galaxy VR mod points

XFX VR mod confirmation coming soon.