7900GT: Unlocking the Beast Within

[Capt Caveman]

Sorry if it's a repost. Very impressive results

http://www.vr-zone.com/?i=3437

 

[GTaudiophile]

I am probably going to buy a Zalman XF900 kit in a few weeks when they come out. Take off the stock HSF on my 7900GT.

 

[samusaraniv]

Oh MAN -- AWESOME FIND!

I will be experimenting with this for sure later tonight!

I have a VF700 on my 7900GT SE so I bet I will get comparable results to that guy's heatsink/fan combo.

 

[JBT]

wow nice results there.

 

[1Dark1Sharigan1]

Keep in mind though that they are using an open-air test bed. A closed case would increase the temps significantly and would probably require water cooling to keep it at those speeds and volts . . .

I really don't want to do any hard mods (and void my warranty) but if the softmod to 1.4v actually works, I'm all there . . .

 

[the Chase]

Bang for the buck just flew off the charts!!

 

[1Dark1Sharigan1]

Just found out about the trick with the conductive pen. No physical alteration of the card so it shouldn't void the warranty. Gonna try it tonight and see if I can hit GTX speeds and above . . .

 

[samusaraniv]

Conductive pin? What's this?

 

[1Dark1Sharigan1]

Originally posted by: samusaraniv
Conductive pin? What's this?

Here

It's easy and (relatively) safe . . .

 

[therealnickdanger]

I'm sure I've read that a closed case with good intake/outtake results in lower overall thermals than an open case... but I'm sure results vary by components and cases. Anyhow, I'm am extremely impressed - I'd like to see a followup with a phase-change cooler.

 

[Extelleron]

Wow is all I can say. 800+ on the core and 2100MHz+ memory? Sounds like some $600 cardwe would expect next year.

 

[1Dark1Sharigan1]

Originally posted by: therealnickdanger
I'm sure I've read that a closed case with good intake/outtake results in lower overall thermals than an open case... but I'm sure results vary by components and cases. Anyhow, I'm am extremely impressed - I'd like to see a followup with a phase-change cooler.

Unless you have a 20" fan blowing into it like I have . . .

 

[samusaraniv]

Originally posted by: 1Dark1Sharigan1

Originally posted by: samusaraniv
Conductive pin? What's this?

Here

It's easy and (relatively) safe . . .

I see. I guess I'm a dumb$$$, what do you need to do with those two pins? Link them electronically somehow?

 

[SpeedZealot369]

Originally posted by: samusaraniv

Originally posted by: 1Dark1Sharigan1

Originally posted by: samusaraniv
Conductive pin? What's this?

Here

It's easy and (relatively) safe . . .

I see. I guess I'm a dumb$$$, what do you need to do with those two pins? Link them electronically somehow?

yeah how does that work? picture doesn't explain much...

 

[1Dark1Sharigan1]

You just need to connect them by drawing the lines shown in the picture with a conductive pen.

 

[firewolfsm]

wow, that 1.3V mod looks awsome, i might try it. if anyone did, post some pics. I wounder how much raising the voltage to 1.3 should help OCs over the average 560MHz on the 1.2V.
I will not feed more than 1.3V to my card.

 

[SpeedZealot369]

Originally posted by: 1Dark1Sharigan1
You just need to connect them by drawing the lines shown in the picture with a conductive pen.

Are there any programs that could do this? I mean I don't wanna screw around with the actual hardware.

 

[firewolfsm]

ya, i'm a little scared, what about flashing the GTX bios? That should feed 1.4, i'm sure it doesn't work though.

 

[1Dark1Sharigan1]

Originally posted by: SpeedZealot369

Originally posted by: 1Dark1Sharigan1
You just need to connect them by drawing the lines shown in the picture with a conductive pen.

Are there any programs that could do this? I mean I don't wanna screw around with the actual hardware.

Not sure if BIOS flashes actually deliever 1.4v to the GPU. Also it's not really dangerous since you're not actually messing with the hardware (no soldering, etc.) and if it doesn't work you can always remove it with some acetone/alcohol . . .

 

[samusaraniv]

So will a software update allow the voltage to be increased to 1.3V? Also, I just talked to a coworker of mine that did surface mount soldering stuff and he said that to remove the resistors as stated in that guide, you would need a magnification utility and be careful not to pull the trace (?). I have minimal experience with soldering stuff.

Does anyone know how hard of a task this would be?

 

[therealnickdanger]

Originally posted by: 1Dark1Sharigan1
Unless you have a 20" fan blowing into it like I have . . .

Ah yes, the good ol' box-fan "mod".

I don't have a 7900GT (yet) but I'm very interested in this pen mod. Can you break it down with a better picture and explanation, please? It sounds cool!

 

[1Dark1Sharigan1]

Originally posted by: samusaraniv
So will a software update allow the voltage to be increased to 1.3V? Also, I just talked to a coworker of mine that did surface mount soldering stuff and he said that to remove the resistors as stated in that guide, you would need a magnification utility and be careful not to pull the trace (?). I have minimal experience with soldering stuff.

Does anyone know how hard of a task this would be?

You can just use the conductive pen method and not have to solder or remove anything

 

[Kakumba]

according to the Extremesystems forums, this card has OVP issues, so you do have to replace the resistors potentially. you want to do a bit of reading before going ahead with voltmods on this card, but the benefits are indeed great.

 

[zzzvideocardzzz]

Originally posted by: Kakumba
according to the Extremesystems forums, this card has OVP issues, so you do have to replace the resistors potentially. you want to do a bit of reading before going ahead with voltmods on this card, but the benefits are indeed great.

what would happen if this super oc goes on for the next 7 month?

 

[samusaraniv]

Originally posted by: Kakumba
according to the Extremesystems forums, this card has OVP issues, so you do have to replace the resistors potentially. you want to do a bit of reading before going ahead with voltmods on this card, but the benefits are indeed great.

So how hard would this modification be, do you think? I'm quite interested, but I really don't wanna screw up my card. :\