9600GT voltmod thread

[PizzaMan]

Hello XS, I've modded three 9600GTs. One EVGA has done well. Raising the BIOS voltage seem to let me raise voltage above 1.15v. The other two, one EVGA and one PNY gives me the voltage kick. Not -0.00v but reverting to boot voltage, default 0.945v.

I've seen a few suggestions for OVP/OCP work arounds. Wondering what I should try next.

The PNY card worked fine once the VR was removed. The EVGA doesn't render 3D images with original BIOS and no VR anymore. It folds great @ 1.16v and 820/2000/975, but black screens apon 3D rendering......

[PizzaMan]

I'm having issues getting this card to render 3D. After playing around tonight I was finally about to run the card at stock core and shader, but I had to lower the mem to 450Mhz anything higher and the card kicks it black screen.....

This happened right after I added a 100K VR and flashed the BIOS to 1.2v. Flashing the BIOS in the first EVGA seemed to open up the card up to higher voltage. So I was starting with the currant successful BIOS from the first card. Flashed it and the card loaded windows with 1.36v and started going black when attempting 3D rendering. Doesn't seem to be OVP but something is wrong with the cards OCP. Card trips to .95v and goes black.

Here are some pics of my noob soldering.
http://i170.photobucket.com/albums/u...l/100_1097.jpg

[mmmmmmmmm]

is there a VOLT MOD PENCIL for my video card...

below is link of my VC.. pls i really want to squeeze all the juice from my card...

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

[PizzaMan]

VID mod is the way to go. I've modded three 9600GTs so far. Only had luck with one our of the three.

Did the VID mod to 1.3v. I used a 100K VR to tuner above that. With the 1.3v VID mod OVP and OCP appear to be gone. I was able to tune up to 1.42v, but the card just didn't like anything above 1.35v. Running on water.

Currantly at 1.333v 900Mhz core 2200 shader. Memory even with 2.2v doesn't like to go higher then 1053Mhz. I even tried loosening the timings. I'm just gonna stick with the 2.0v mem and run it at 1000Mhz and 1053Mhz for benching. I might go back and try to tighten the timings.

I owe credit to CL3P20 at OCN for helping me with this mod. We used a lot of the stuff from this thread as guide lines for testing.

[Larvitar]

Larvitar chip at mosfet "APW....."?

APW7088
TX26C

[0Ro!]

APW7088
TX26C

FB is the 13.pin, measure the resistance between this pin and ground

where the pin is located look at largons post here http://www.xtremesystems.org/forums/...&postcount=154

[brasssmunkye]

so, i have an EVGA 9600GT, i believe it is reference
is there any known voltmods here for these cards?
i see some of you mentioning you hit high core clocks etc with vmods, but you get the boot once you hit 3d mode?

i'm really wanting to get a nice cooler for this card, pick up another and SLI them
but idk if i want to without vmods lol

so any verified success with vmods?
(for 24/7 use on a good air cooler)


edit:
i forgot, i saw these http://www.techpowerup.com/articles/.../vidcard/150/2
a while back, has anyone here tried this with any success? or does this still trip the OVP?

[PizzaMan]

so, i have an EVGA 9600GT, i believe it is reference
is there any known voltmods here for these cards?
i see some of you mentioning you hit high core clocks etc with vmods, but you get the boot once you hit 3d mode?

i'm really wanting to get a nice cooler for this card, pick up another and SLI them
but idk if i want to without vmods lol

so any verified success with vmods?
(for 24/7 use on a good air cooler)


edit:
i forgot, i saw these http://www.techpowerup.com/articles/.../vidcard/150/2
a while back, has anyone here tried this with any success? or does this still trip the OVP?

That's the mod that worked best for me. I've modded 3 9600GTs and only had sucess with one card. the other two had a OCP that wouldn't allow the card to go over 1.2v.

VID mod!

I would say. ~1.22v with stock cooler, ~1.28v with an after market air, and 1.33v has worked well with me on water for 24/7 settings.

To get above ~800Mhz keep temps below 55c with air.

[brasssmunkye]

That's the mod that worked best for me. I've modded 3 9600GTs and only had sucess with one card. the other two had a OCP that wouldn't allow the card to go over 1.2v.

VID mod!

I would say. ~1.22v with stock cooler, ~1.28v with an after market air, and 1.33v has worked well with me on water for 24/7 settings.

To get above ~800Mhz keep temps below 55c with air.

ok, so i just reverse the mod if i get OVP problems or is my card borked?

and why 55c? thats awfully low lol
my card does 710/(linked, i forget)/1100 i think
(its been in my buddies pc as of late, long story short we temporarily traded cards because of PSU issues)

so you're telling me, i will only be able to hit 800mhz with a 1.28ish vmod on the core?

oh, and what about the mem? you have any expertice there?

[PizzaMan]

ok, so i just reverse the mod if i get OVP problems or is my card borked?

and why 55c? thats awfully low lol
my card does 710/(linked, i forget)/1100 i think
(its been in my buddies pc as of late, long story short we temporarily traded cards because of PSU issues)

so you're telling me, i will only be able to hit 800mhz with a 1.28ish vmod on the core?

oh, and what about the mem? you have any expertice there?

I didn't say 800 was the limit with ~1.28v, just getting above 800 will require low temps. At ~1.28 you should be able to reach ~860 with good cooling.

As far as memory goes, I'm not having luck with my card. I think the increased heat on the PCB is holding me back. I also have a 780i NB fan blowing hot air on the back of my card. I've seen a few run 1200 with 2.2v. You have put a VR or use the pencil mod. Both work great, just be careful with the pencil mod. It doesn't take but just a small touch of graphite.

[brasssmunkye]

I didn't say 800 was the limit with ~1.28v, just getting above 800 will require low temps. At ~1.28 you should be able to reach ~860 with good cooling.

As far as memory goes, I'm not having luck with my card. I think the increased heat on the PCB is holding me back. I also have a 780i NB fan blowing hot air on the back of my card. I've seen a few run 1200 with 2.2v. You have put a VR or use the pencil mod. Both work great, just be careful with the pencil mod. It doesn't take but just a small touch of graphite.

well thank you for your information, you've been awfully helpful to me
when i get my card back (should be soon) ima be putting an arctic cooling twin turbo cooler on it, so it should stay decently cool
that or a zalman vf900

[punx223]

hey guys can anyone help me?!?! i seem to be missing something here as this card is nowhere near reference.

heres the front

[punx223]

Heres the rear

[punx223]

anyone ever see this card layout before?

[PizzaMan]

anyone ever see this card layout before?

What brand 9600GT is it?

[punx223]

What brand 9600GT is it?

XFX

[PizzaMan]

I'm haven't found a VID mod for the xfx design yet.

[chispy]

Same here im looking for the xfx 9600gt 512mb v.core volt mod , same card as punx223 on his pictures , any guidance or help with the voltmods will be really apprecaited.


chispy.

[punx223]

the chip looks to possibly be the same but it is a richtek rt8841

http://www.richtek.com/product_detail.jsp?s=448

but with the design im having a lil trouble figuring out hat i need for it.

Im wondering on this design if a soft mod would work?

has anyone tried?

[PizzaMan]

I've not tried the BIOS mod on an XFX card yet. I can tell you on the EVGA, BFG and PNY cards that voltage increases in BIOS made no change in voltage except for one randum EVGA card. When the BIOS was set above 1.2v it took the card up to 1.39v. You can always try. Odds are it will act like most 9600GTs, but you might be lucky. One was to find out.

If you need info on how to flash in Windows let me know. I have a nice guide with pics.

[palli.90]

hello all
i am italian boy

i read this fantastic post and i have made my vmod with a little
edit.
I can choose the voltage when i want by a little micro switch

what do they think about it?



the frequency core max is 880mhz to 1.40. The temperature is
too high
and the vga does not rise beyond.
At future i must use phase change on the vga for 1.5v.

[PizzaMan]

Hmm, I can hit 925Mhz with 1.40v. Also you can add a VR to the vGPU point and increase voltage a bit above VID before hitting OCP. If you notice OCP being a problem increasing the BIOS voltage can help.

Love the switch for VID though. I bought one of those, but didn't take the time to solder each wire. Just to lazy. Very nice work!

[palli.90]

thank you.
i think that the problem is the temperature (about 36°C full load 1.40).
if i can, i use my phase on this vga but it is very difficult because my phase is for cpu

scuse me but what is OCP?
and how can i improve max core?

[PizzaMan]

Well, since your not using a 100K VR on the vGPU mod then 1.4v VID comes to ~1.35v idle and ~1.3v load. Add a VR and you'll have 1.38v idle with VR set to max (100k) value. You can then adjust the idle voltage to 1.45v. 36C is fine for up to 900Mhz. I can run 900Mhz with 1.38v idle voltage with my cards running 40C load. You can just chill your water by moving your rad to an AC duct blowing cold air and easily get some benchies over 900Mhz. I was able to run 3Dmark06 with 925Mhz/1.4v load temps @40c.

OCP is over currant protect. If you get black screens while increasing voltage with VR and your card defaults to ~.95v then you've hit OCP. If card goes to 0.0v then you've hit OVP (over voltage protection). I've yet to hit OVP on any of the 9600GTs I've killed so far. The VID mod takes care of the OCP for the most part. Only had a couple cards that actually needed the BIOS mod to get past OCP.

[palli.90]

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: