9600GT voltmod thread

[blind_ripper]

twintech 9600GT vgpu mod done

[TheGoat Eater]

hi guys! i have palit 9600gt non-sonic, without hdmi.
card:

vgpu mod (pencil mod is possible):

vgpu measuring points:

I have the same card ! What resistance value did you use ?

what you seek is here ->
http://www.teampalit.com/showthread.php?t=6126

will update with better ground points now that I am reminded of it

[Sloane Ranger]

twintech 9600GT vgpu mod done

Hello, Big thanks for that nfo, either u did it urself or only found on the net.As u can see, this Twintech 9600gt card is not a reference pcb, & chip vcontroler neither.
Thanks again , respect

Ya know a check point for vcore mesure ?
For mem, no problem to vmod , chip controler is a RT 9259a aka most 9600gt card

[blind_ripper]

found it my self . this card is fun to play with , at the back off the R68 cap u can meseur one off the legs . runned the card up to 1.7vgpu with no OVP atm .

[i-VTec]

Hi guys...

Yesterday i decided to give it a try with my 9600GT...It's the reference design but when i looked at it,i was a bit confused...From what i've read in this thread,it SHOULD be 0-0-0-1 (for VID2-VID3-VID4-VID5 respectively) but instead it was 1-1-1-0...You may see it in the picture below (damn 2MP mobile cameras)

http://i102.photobucket.com/albums/m...DSC01060-1.jpg

Does that mean that ECS provides 1.15 voltage instead of 1.1?

Later,i found out that my card does not have two different states (2D and 3D)...Clocks don't change from 2D->3D,neither does the voltage,as tested with my multimeter.I bridged VID2 and it gave me 1.2 Volts continuously...

http://i102.photobucket.com/albums/m...h/DSC01055.jpg

So it seems that ECS has only one performance state and so it provides 1.15 by default...after the mod i managed to run 3dm06 @ 800 core 2000 shader (memory does 2.200 MHz easily without mods,these Samsung chips are great),but it still freezes at some games and may freeze after 4-5 loops @ 3dm06.Should i go for 1.25V?

http://www.hwbot.org/listResults.do?...plicationId=12

Thx in advance!

[dejanh]

^ looks like non-reference design. You will have to ask some of the resident experts.
Now, on to the OCP and OVP issues...

With a bit of creative searching and research I managed to get some info on the ADP3208 and confirm pin assignments for reference PCB.

Pin #12 - TTSNS - Thermal Throttling Sense and Crowbar Disable Input. A resistor divider where the upper resistor is
connected to VCC, the lower resistor (NTC thermistor) is connected to GND, and the center point is
connected to this pin and acts as a temperature sensor half bridge. Connecting TTSNS to GND disables
the thermal throttling function and disables the crowbar, or overvoltage protection (OVP), feature
of the chip.

Pin #15 - CLIM - Current Limit Setting Input/Output. An external resistor from this pin to GND sets the current limit
threshold of the converter.

According to an engineer I consulted we can increase the size of the resistor to increase the current limit. Doubling the resistor would double the current limit. The resistor that is being used currently is something around 200kohm, so let's see what we can do

Please post pics of mods

[i-VTec]

Sorry,i just saw your edit...

Non-reference,eh?My bad then...

Anyone with ECS 9600GT? Tomorrow i'm gonna try giving 1.25 Vcore and see what happens with the clocks...Even though with 1.2V now i must keep fan speed at least 50% in order to avoid artifacts etc...

[dejanh]

Sorry, my bad actually. Your card is reference design, and yes you had 1.15V set by default. I had the same on my EVGA 9600 GT cards. Just follow this http://www.techpowerup.com/articles/.../vidcard/150/2 for the rest of the voltage mods. Currently I am running one of my cards at 850/2108/1100, but the other one has the dreaded black screen of death so it does not go past 740 it seems. ty.

Anyway, increasing resistance at Pin #15 for me did nothing. Now I have removed that resistor altogether just to see what happens. Same problem, at the same point. It does not look like it is an OCP problem. I'll keep trying stuff out with it. This card is crap anyway and I've already abused it big time trying to solder on stuff :p

I have a feeling all the black screen of death cards are faulty by design. That is really how it is looking so far anyway.

[dejanh]

Tried grounding pin #12 as well, with no effect. This is definitely looking like an engineering fault on ref. design. One other thing I noticed, funny at that is that I can push the faulty card to the same level as the good one, but I have to start the 3D app first and then OC the card. This also works for ATITool. If I start it at 675 core and linked shader it starts fine and does not artifact or crash when I OC to 850/2108/1100. However if I close it and try to start it again it black screens. It looks like it is some sort of voltage transition issue from low power to high power when going from 2D to 3D.

[i-VTec]

thx 4 the answer...tomorrow i'll try the mod and with a bit of luck i'll post 13k results from 3dm06...

[dejanh]

One other thing I found is that touching pin #37, VCC pin, the card black screens immediately. Same happens on both cards I have. I cannot even get any measurement off of this pin as just touching it black screens the card. Is this normal?

VCC pin is specified as "Power Supply Input/Output of the Controller."

[i-VTec]

Voila!

http://i102.photobucket.com/albums/m...h/DSC01070.jpg

http://i102.photobucket.com/albums/m...-2050-2200.jpg

http://www.hwbot.org/result.do?resultId=756268

1.25 Volts...60 Celcius max with reference fan @ 100%...i don't think it'll do 850-2100,nor i want to try it,not a good time for RMAs... I seriously need a new cooler...

[akin]

my 96GT is Dead ! yups it end up dead

but i'm happy though cause i can touch 900 core... with 1.55 voltage (bios mod) hahaha

to bad it dead when i bench 0n 3DMARK2001...

times to RMA though

guys based on my experience the Gigabyte 9600GT, this VGA just can handle 1,4V max.
i think the core is can handle the voltage more than that, but the limitation was come from the voltage mosfet for the core. the max voltage is 1,44V, i found it on the datasheet of this mosfet

[dejanh]

Went back to my 9600GTs after trying out the 4870 XOC BE and having more problems with it than you can imagine. Anyway, I posted some new scores in Vantage under the 175.16 (FM approved) drivers, and boy did I get nice scores with my new OC at 870/2157/1100. Check it out, especially the GPU score as my CPU sucks so my overall score is not the most impressive thing around...top 9600GT and top 9600GT SLI GPU score around

9600GT - http://service.futuremark.com/compare?3dmv=284548
9600GT SLI - http://service.futuremark.com/compare?3dmv=290083

Ahh yeah, that's-a nice

[Darren1981]

G'day guys..

i have this card:


i dont have a soldiering iron oe a multimeter to measure points yet..

anyway i have also attached a fan to the cooler and im getting 25d/c idle its begging to be overclocked, my question is what can i run this card at safely without volt mods ??

my stock speeds are: 650 / 900 / 1625

from what ive heard these cards arnt all that bad for cheapies..

so any info to what i should push to would be a great help.. i'll be strapped for cash for the next few months so cant even afford a multimeter or soldiering iron

Thanks again

And will it be ok to set using Nibitor editor rather than use rivatuner to set ??

one last thing has anyone tweaked the timings of the memory yet ??

[oohms]

The passive ECS 9600GT is a nice card... Overclock it as far as it is stable, you have to find that point for yourself cause every card is different.

Attaching a silent 120mm fan to the sink really helps temps, and you can do 1.4v GPU no sweat (with a voltmod)

[Micutzu]

For the MSI 9600GT that has been used in the recent contest, you need to remove R758 and R760 and replace them with 1.5Kohm resistors (original value is ~800ohm) to remove the OCP protection; they trace back to pin 7 and pin 8 of APW7088. This allows Vgpu adjustments of over ~1.25V, i could bench at 1.65V no problem.

[BlackShogun]

Guys, can you help me a bit?

I want to volt mod my card, it's an POV 9600GT EXO and I can't get the correct guide for this card as it's quite not the refference model. Pics attached...mainly I just want to increase voltage for the memory not by much, hoping for a pencil mod. Which line on the PCB that I have to alter?
http://www.pointofview-online.com/de...ontent_id=1894

It's came default OCed to (c/s/m) 700/1750/975 and it won't go much higher than that. I could live with the core managing 730, but the memory only manage 1000...

Thank you in advance, any help will be much appreciated.
Cheers.

[BlackShogun]

Anyone can give me a pointer?

[0Ro!]

Hi BlackShogun

can you post some better pics of these areas (and read the numbers from these IC´s ... when the second is an IC of course - I don´t see from this pic ) ... the first looks like he controls the vMem

[najj]

I also have this graphic point of view if you can discuss how to do voltmod.

[zixpt]

hi, do you have vmod palit 9800 gt red pcb ? I find vgpu but i don't have vmem...

[vservera]

hello, I am loocking for a Zotac 9600Gt AMP edition voltmod

http://www.techpowerup.com/reviews/Z...ages/front.jpg

http://www.techpowerup.com/reviews/Z...mages/back.jpg

thnx!

[Larvitar]

I have an ECS N9600GT-512MX-P-Frontline, and I saw, it is not based on default PCB.

The temperatures are below 33 º C, then a vmode to 1.35V is safe. But I can not find a vmod possible for this card.

A photo of the PCB:


Could you help me?

P.S.: Sorry my bad english

[BSW_rama]

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