Switch to Linear ModeSwitch to Hybrid ModeSwitch to Threaded Mode
Printer Friendly View | Email this page | Register Now to start posting!
Shamino
Shamino's Avatar
Master of past & present


Join Date: Feb 2001
Location: The Abyss
Posts: 13,454
Trade rep: 0 (0%)
Infractions: 0/0 (0)
Thanked 1 Times in 1 Post
NVIDIA 7900GTX, 7900GT & 7600GT Voltage Mods Shamino Mar 10th, 06, 06:32 AM #1

Quote:
On top of our in-depth reviews of the newly launched 7900 and 7600 series of GPUs, we have also looked into the voltage regulation on each of these cards and we bring to the overclocking community the first Voltage modifications guide in the world for these cards! For the 7600GT all you need is a humble pencil to do it!
http://www.vr-zone.com.sg/?i=3330


sg.png
flytek Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
flytek Mar 10th, 06, 04:21 PM #2
great work

may i ask if you have any results for overclocking the 7600gt and 7900gt when using your vmods?
za.png
Nosfer@tu
Nosfer@tu's Avatar
OCTeamDenmark.com Crew


Join Date: Jun 2004
Location: Denmark,hilleroed
Posts: 63
Trade rep: 0 (0%)
Infractions: 0/0 (0)
Nosfer@tu Mar 13th, 06, 09:18 PM #3
Hi shamino.

Once again you on the front line

I have some questions

My most important one
For the 7900 GT is it possibel to use some of the TP points as with the 6800 card and 6600 GT.

Maybe we could have some of the VR users mesure the resistance ??
Seams that TP501 and TP503 could be used to do the Vmem for the 7900 GT?

When I by it my self I will measure and post but It will take some time :angle5:
dk.png
Shamino
Shamino's Avatar
Master of past & present


Join Date: Feb 2001
Location: The Abyss
Posts: 13,454
Trade rep: 0 (0%)
Infractions: 0/0 (0)
Thanked 1 Times in 1 Post
Shamino Mar 14th, 06, 12:41 PM #4
Quote:
Originally Posted by Nosfer@tu
Hi shamino.

Once again you on the front line

I have some questions

My most important one
For the 7900 GT is it possibel to use some of the TP points as with the 6800 card and 6600 GT.

Maybe we could have some of the VR users mesure the resistance ??
Seams that TP501 and TP503 could be used to do the Vmem for the 7900 GT?

When I by it my self I will measure and post but It will take some time :angle5:
Hi! this way works, why would you want to do it another way?
sg.png
cronic Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
cronic Mar 14th, 06, 11:30 PM #5
ok i did the gpu v mod and the pencil mod to my 2 evga 7900gt oc sc (stock 550/1580) and really have not had much luck at all. at stock volts all the gpus would test at are 585, which was a liile disappointing. so i did the vm and they don't seem to respond much at all. one of the cards will complete 3dmark06 at 610 on the gpu @ 1.26v, however over 1.3 volts the systems gets a black screen or restart. the 2nd card did not preferorm as well as it did at stock volts after the mod. before the mod i was at 1.22 volts in 3d mode, after i removed the mod from this card i am at 1.19 volts in 3d mode. as for the memory mod it did not seem to like the voltage increase at all either, with it preforming worse after the vm than stock. i am very puzzled at this point as these cards seem to behave differently than any of my previose cards after volt mods. has anyone had any success getting past 600mhz on the 7900gts and if so what voltage was used? thanksin advance for your help.
us.png
Nosfer@tu
Nosfer@tu's Avatar
OCTeamDenmark.com Crew


Join Date: Jun 2004
Location: Denmark,hilleroed
Posts: 63
Trade rep: 0 (0%)
Infractions: 0/0 (0)
Nosfer@tu Mar 15th, 06, 04:35 AM #6
Quote:
Originally Posted by Shamino
Hi! this way works, why would you want to do it another way?
because I made a mod where I only solder everything on the print.

http://www.vmod.blogspot.com/

Hope it is okay that I like to my blog?

And with that I could just stick the neadels in without riskin warranty
not that I care but alot of users do
dk.png
taotao0210 Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
taotao0210 Mar 16th, 06, 10:54 AM #7
Quote:
Originally Posted by cronic
ok i did the gpu v mod and the pencil mod to my 2 evga 7900gt oc sc (stock 550/1580) and really have not had much luck at all. at stock volts all the gpus would test at are 585, which was a liile disappointing. so i did the vm and they don't seem to respond much at all. one of the cards will complete 3dmark06 at 610 on the gpu @ 1.26v, however over 1.3 volts the systems gets a black screen or restart. the 2nd card did not preferorm as well as it did at stock volts after the mod. before the mod i was at 1.22 volts in 3d mode, after i removed the mod from this card i am at 1.19 volts in 3d mode. as for the memory mod it did not seem to like the voltage increase at all either, with it preforming worse after the vm than stock. i am very puzzled at this point as these cards seem to behave differently than any of my previose cards after volt mods. has anyone had any success getting past 600mhz on the 7900gts and if so what voltage was used? thanksin advance for your help.
the same with you, i mod my 7600GT with a pencil yesterday. it do work for the GPU when i add 0.1v volts, but for the memory, it works worse after the vm volts added. i also get a black screen when the volts over 1.49v
is there anything wrong about these card? :confused5
us.png
cronic Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
cronic Mar 16th, 06, 11:12 AM #8
Quote:
Originally Posted by taotao0210
the same with you, i mod my 7600GT with a pencil yesterday. it do work for the GPU when i add 0.1v volts, but for the memory, it works worse after the vm volts added. i also get a black screen when the volts over 1.49v
is there anything wrong about these card? :confused5
.

not sure, but i am glad to see that someone else has tried the mods. my 7900gts lock up completly at or above approx 1.29v on gpu. Also the high as i can see with a 50k ohm trimmer is approx 1.35v, shouldn't I be able to go higher.
I would really love some input from someone who has been successful with this mod. 10k in 06 is really teasing me at this point. lol
us.png
taotao0210 Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
taotao0210 Mar 16th, 06, 12:02 PM #9
i hope someone else can give some good advise.
us.png
Alexstarfire Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
Alexstarfire Mar 17th, 06, 02:09 AM #10
Uhh, quick ?. When I do the vGPU mod, I solder one end of the VR to the resistor and just ground the other end, right?
us.png
cronic Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
cronic Mar 17th, 06, 02:27 AM #11
Quote:
Originally Posted by Alexstarfire
Uhh, quick ?. When I do the vGPU mod, I solder one end of the VR to the resistor and just ground the other end, right?

typically yes, here is a link to some great info prepared by the master himself:
http://www.vr-zone.com.sg/?i=757
us.png
Alexstarfire Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
Alexstarfire Mar 17th, 06, 04:42 AM #12
Thanks
us.png
cronic Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
cronic Mar 17th, 06, 06:34 AM #13
it appears that the 7900gt have overvolt protection. any cure to this
us.png
masotime
masotime's Avatar
Registered User


Join Date: Sep 2004
Location: Bishan, SG
Posts: 1,042
Trade rep: 8 (100%)
Infractions: 0/0 (0)
Thanked 1 Times in 1 Post
masotime Mar 17th, 06, 08:52 AM #14
Shamino's probably busy with trying to break world records with his Venus and 7900GTXes . I'm sure he'll post a response after a while.
sg.png
cronic Guest


Posts: n/a
Trade rep: (%)
Infractions: / ()
cronic Mar 17th, 06, 11:46 AM #15
yep, i completly understand. did a litle more research and the overvolt protection kicks in at 1.290 2dv , which is 1.298 3dv
anything lower is fine but at 1.290 she will black screen every time with both or individual cards.
highest i can get is 615 on the gpu which isn't bad, BUT if the overvolt protection is gone she will SCREAM!
us.png
↑↓ Linkbacks
Posted By For Type Date
NVIDIA 7900GTX, 7900GT & 7600GT Voltage Mods by VR-Zone.com This thread Refback Mar 18th, 12 05:29 PM
pencil mod 7600gt | VIRGILIO Ricerca | Web This thread Refback Apr 2nd, 10 07:01 AM

Thread Tools Display Modes
Linear Mode Linear Mode