9600XT Vmods

[bigZ]

yeah unoid's site is a good resource, sadly in my case, my board wasn't the same layout as any of the boards he's got listed

But, we've managed to work out the mods and it seems like I've got a gem here

Good luck with the mods bennah, Maplin do the 10k VR's that you're after

[funktional]

Just did the vddq mod. This gave me artifact free 730MHz and a few more MHz on the RAM.

My problem with artifact at high voltages are also gone after the mod.

Now lets do some benching


btw. Someone should tell uniod about this

Edit: this is unbelievable 750MHz artifact free @1.6V
I wonder where this will end up.

[bigZ]

oooo sweet

I got 750Mhz with just the vGPU mod @ 1.55v, never tried for anything higher than that, but I was artefact free, just the odd tear from the mem being on the edge.

I'll have a look into vDDQ and vMEM though I think

No point having a half modded card when there is probably going to be more in this card still

[L337 M33P]

Originally posted by funktional
Just did the vddq mod. This gave me artifact free 730MHz and a few more MHz on the RAM.

My problem with artifact at high voltages are also gone after the mod.

Now lets do some benching


btw. Someone should tell uniod about this

Edit: this is unbelievable 750MHz artifact free @1.6V
I wonder where this will end up.

In5ane

But it bodes well for me - 590 @ stock cooling, same type of card

I wonder how it will do after some 1U cooler modding and ramsinks

[bachus_anonym]

glad u got this baby this high, bigZ...
go for vdd and vddq mods... they're easy as hell... and might help u that tearing ...

way to go, man

[enzoR]

anyone have a link for a VDDQ guide?

[bigZ]

VDDR is the large chip right? ISL6522CB?

Pin 5 and 7 are the two I want IIRC, if this diagram is correct: http://www.uploadit.org/L337M33P/blah-046.jpg

that would mean that VDDQ is the other RT9202 chip, I guess the mod is the same for that as it is for the VGPU mod? pin 3 and 6

[bigZ]

VDDR is the large chip right? ISL6522CB?

Pin 5 and 7 are the two I want IIRC, if this diagram is correct: http://www.uploadit.org/L337M33P/blah-046.jpg

that would mean that VDDQ is the other RT9202 chip, I guess the mod is the same for that as it is for the VGPU mod? pin 3 and 6

argh double post

[L337 M33P]

The large chip in the middle is VDDq, as when I measured the voltage on surrouding caps I got a lower voltage there as opposed to the controller at the far end of the card. Pin 5 and 7 are the pins.

The mod for the VDDR chip at the other end of the board from the GPU voltage is the same - pins 3 and 6.

[bigZ]

Originally posted by L337 M33P
The large chip in the middle is VDDq, as when I measured the voltage on surrouding caps I got a lower voltage there as opposed to the controller at the far end of the card. Pin 5 and 7 are the pins.

The mod for the VDDR chip at the other end of the board from the GPU voltage is the same - pins 3 and 6.

Thanks dude

(I dunno whether anyone welcomed you here, so I'll do it )

Welcome to Xtreme

[bigZ]

I ran 3DMark03 at 725/365 without the fan blowing, seems to be close to it's max. 732 hard locked and 730 was pretty colours

best I managed was 5089 on my 24/7 OS, no services disabled, nothing done to the OS at all

When I get my tweaked and de-cluttered DX9 install done I'll give it another whirl

I guess the card is getting a bit hot for it to artefact the way it was.

I seem to be having problems using the Quick Reply box...

edit: no wait, the time is screwed up

[bachus_anonym]

bigZ, get that soldering iron and do the remaining mods.... i'm curious what is the max of that 9600xt... :-)

[funktional]

L337 M33Ps you got it right. Why is your card still below 600MHz if you know all this
Come and join the club of the mid range xtreme overclockers

The point to measure the vddq should be the one where you measured 1.38V.
If I go above 1.5V there I get artifacts again and gain no more OC but I ask myself what bigzs wondercard will be able to do.

You should do a 3dmark03 bench. Iam shure you'll place first there. While higher frequencies only give sligtly better scores in 2001 the 03 scales quite good. Im 3rd there with 2270MHz CPU only...

[bigZ]

the VDDQ mod is done, but I'm getting problems with Nature... vDDQ is set to 1.45v and vGPU is set to 1.55v... 751/373 will run about 15 seconds of nature and then the screen will have stripey effects (Like an RGB breakdown), and the computer crashes.

[bigZ]

slight improvement on my previous attempt... 752/374 vDDQ = 1.44v vGPU = 1.55v

17738 - 7th overall now



Could run some tests up to 774 core, so there is more to come once I work out wtf is going on with the nature crashing

[funktional]

774

What a great Overclock!
I wonder when you will pass 800

My Score is 17345 now: http://service.futuremark.com/compare?2k1=7615503
752/378@ ~21°C Roomtemp as Im ill. I wonder what the card can do at lower Rommtemps.
I also found out that I can go a bit higher on the ram, probably 382 or so and I ordered 1GB KHX3000.

[bigZ]

I saw your score, that's some pretty top clocks too from that card

I had another go today... got sooooo close to 17800!

http://service.futuremark.com/compare?2k1=7617992

Here's what happens when I get my nature problem....

[funktional]

Never got a screen like that. Do higher Voltages help?
My current clocks are 775/780 but I gotta give the GPU almost 1.7V. Hope this wont kill my card but it remains quite cool so i think this isnt to bad for it.
Im close to 17500 with those clock rates. Cant wait to get my RAM

[ojdr2001]

Any hints for te vddq mod on GECUBE 9600XT?

Thanks

[bigZ]

Originally posted by funktional
Never got a screen like that. Do higher Voltages help?
My current clocks are 775/780 but I gotta give the GPU almost 1.7V. Hope this wont kill my card but it remains quite cool so i think this isnt to bad for it.
Im close to 17500 with those clock rates. Cant wait to get my RAM

I have to lower the voltage thru Nature to get a run thru... I've tried vDDQ up to 1.50v and it was the same all the way to there, 1.44v seems to be all my card likes.

vGPU has been up to 1.62v but I saw no improvement there around 775 is the limit for the card due to getting limited by vDDQ which I can't seem to get stable thru Nature above 1.44v. 1.59v/1.44v is fine for my needs though, I've not seen much improvement in score above 762 core in all honesty due to CPU bottle necks

[NST6563]

Can someone post (with pics preferably) where the vddq and vgpu mods are? And what resistance values you're using?

I've done the vmem mod, and I did the vgpu mod that was on Unoids' site, but from what I'm reading, there's yet another mod that might get me some more mhz out of my card.

so far I've used 1 pot and 1 resistor for the two mods I have. used the pot on the vmem, and the resistor on the vgpu.

I'll post pics of my card in a little while to point out where I've moded.

right now I'm sitting at 630/745...and I'd LOVE to be at 700/745 at least.

[L337 M33P]

Originally posted by bigZ
Thanks dude

(I dunno whether anyone welcomed you here, so I'll do it )

Welcome to Xtreme

Thank you, Xtreme has a bigger voltmodding community than OCforums, which is where I usually live

L337 M33Ps you got it right. Why is your card still below 600MHz if you know all this

Because I am wating for Radio Spares to deliver me damn PGA sink that I plan to cut up - I have the GPU sink (a 1U copper Akasa-350 job) that I will put on but I want to do it all at once.

I am nearly there with the "tin foil" heatsink I have at the moment - 590MHz 3dmark stable/no artifacts. I got a really crummy score of 4200 though, but that was before I reinstalled WinXP. Haven't benched with the new install yet

Just a note about VDDQ: I measured it on my card and got about 2.8V, which was close to VDDR but less than -

Anyway, be careful when modding VDDQ. You may fry the GPU by doing this mod as the voltage controls the input/output buffers of the RAM, and consequently affects the signal voltages.

[bigZ]

where did you measure VDDQ from L33T M33P?

I'm measuring from where it reads "1.38v" in this diagram and I was getting an increase on that cap, so I just assumed that was the place where I was supposed to be measuring from. I didn't measure from the one which reads "2.75v" as I noticed an increase from the first place I measured

I'm not gonna have the card running again until vMEM is done, so I'll have to wait until then to find out if I got an increase on the 2.75v value.

[NST6563]

ok, so here's my card. Sapphire 9600xt. I've already done the VGPU and VMEM mods. I'd like to do the Vddq mod also. However, I'm not exactly sure what chip it is. So, I've taken a decent picture of the card, edited to show the spots I've got mods and the mod for vddq I have in question.

can someone tell me if that is in fact the right spot for Vddq, and if it uses the same pins as the vgpu mod? I would also need the location to read the vddq value.

So far, I can get 630/745 stable from my card @ 1.42v gpu and 2.95v ddr. If I up the vgpu to 1.45v-1.5v I can hit 650-660. However, since I still have stock cooling I'm holding off on that.

thanks,

[funktional]

Vgpu and Vddq use the same chip, the vmod is equal for both. you should start with 10k ohms and go lower in little steps. The Vddq is a bit more dangerous than the other mods so you should be more carefull.