Voltmod 7800GS [Core G71] up to core 700MHz

PAIIITET · *Last edited by PAIIITET; 01-21-2007 at 14:11.*

First voltmod 7800GS [Core G71] in World!!!

------------- For G71 -------------

Up to 1.1v to 1.5v

Use the current-conducting varnish, glue or thin wire

My Result Leadtek AGP 7800GS [G71] 256Mb

Default
1.1v --- 513Mhz
Default cooling + 90x90 Fan in ATITool - 51

Voltmod
1.5v --- 700Mhz
Default cooling + 90x90 Fan in ATITool - 66

Code:

3DMark03 [Test 4]

500/700 --- 85 fps
600/700 --- 97.5 (14.7%)
650/700 --- 101.3 (19.17%)
700/700 --- 109.3 (28.6%)

-------------------------------------

Информация на русском языке VID вольтмод AGP GeForce 7800GS [G71] - Translate into english

-------------------------------------

New Metod 1.2v, 1.3v, 1.4v or Sparkle 7800GS (G71) Voltmods

------------- For G70 -------------

Up to 1.4v to 1.5v

Result bernek 570Mhz

fungry · 10-12-2006, 16:51 | posts: 253

wait, you simply stuck a "current-conducting varnish/glue/thin wire" onto the PCB? lol and you got this thing overclocked?

sorry but i'm not very knowledgeable in terms of modding components :S

cowie · *Last edited by cowie; 10-12-2006 at 23:12.*

all it took was grounding the tp?
good job

edit somebody grow some ballz and try it g71 7800gs agp be a hero like this guy (i like this guy already)

sidret99 · 10-12-2006, 21:38 | posts: 189 | Location: Austria

would this work on my xfx also like you describe is there more to know about

PAIIITET · 10-12-2006, 21:51 | posts: 44 | Location: Russia, Tomsk

You prostite for my English, but this method it works.

I was used the thin wire.

Luvabud · 10-12-2006, 22:08 | posts: 919 | Location: Uk

You've got 700MHz, I'm impressed, that core must be screaming for mercy

morfeus02 · 10-12-2006, 22:09 | posts: 1,460 | Location: Italy

OMG I'Ll do it immediately O.O

700mhz core

O MY GOD!!!!!!!!!!!!!!

bernek · 10-12-2006, 22:16 | posts: 1,302 | Location: Romania

hmmm everybody here has G71 ???

only I'm stuck with G70 ???

hope it works for G70 too ...

Please post more information and more pics if possible !

This could be very very interesting if it really works ...

My OC is up to 520 Core on default voltage ...

If I hit above 550-600 I'll be thanking you all my life

bernek · 10-12-2006, 22:17 | posts: 1,302 | Location: Romania

strange you only ground a terminal ... (you put a terminal of a chip to the ground ???) what is on the otherside ? where is connected that pin ???

what does it do ? a lot of questions here mate ...

(and in the end ... is the pcb of G71 the same as G70 ???)

Luvabud · 10-12-2006, 22:24 | posts: 919 | Location: Uk

could we see some proof that you have 700MHz, I volt modded my card to 1.5v and only got 670 with some artifacts, too scared to push anymore

bernek · 10-12-2006, 22:38 | posts: 1,302 | Location: Romania

I believe he is not talking about the GS+ models ...
He said about modding a Leadtek 7800 GS - NON PLUS ... AGP 256 MB with G71 core ... (newer models)

only few of the first models had G70 core like mine

P.S. I believe the PCB from GS+ is different from GS standard models

bernek · 10-12-2006, 22:43 | posts: 1,302 | Location: Romania

I will measure the curent from that point to the ground

and post back immediately !

I don't really think this mod will work but ... who knows

Luvabud · 10-12-2006, 22:50 | posts: 919 | Location: Uk

First voltmod 7800GS [Core G71] in World!!!
I believe he referring to the 7900 core, I will wear a pair of socks for a week and then eat them if he's got a G70 core @ 700MHz

PAIIITET · 10-12-2006, 22:51 | posts: 44 | Location: Russia, Tomsk

This is safe, if the temperature in the order. to 7900GT many people are placed even 1.55

PAIIITET · *Last edited by PAIIITET; 10-12-2006 at 23:05.*

Quote:

hmmm everybody here has G71 ???

only I'm stuck with G70 ???

hope it works for G70 too ...

only on G71 with Referenc design (16 pipes) [For instance Leadtek 7800GS 256mb, Club3D 256mb and so on with new core G71](not Gainward+)

Luvabud · 10-12-2006, 22:56 | posts: 919 | Location: Uk

I know it's safe as safe can be, but my wallet starts twitching when I get adventurous

bernek · 10-12-2006, 23:01 | posts: 1,302 | Location: Romania

G70 doesn't show any resistance or voltage between that point and ground ...

bernek · 10-12-2006, 23:05 | posts: 1,302 | Location: Romania

Quote:

Originally Posted by PAIIITET

only on G71 with Referenc design (16 pipes) [For instance Leadtek 7800GS 256mb, Club3D 256mb and so on with new core G71](not Gainward+)

nothing for Leadtek 7800GS 256MB G70 ????

((((((((((((((

PAIIITET · 10-12-2006, 23:07 | posts: 44 | Location: Russia, Tomsk

Measure voltage

bernek · *Last edited by bernek; 10-12-2006 at 23:17.*

I can't see the pictures ... seems your hosting for pics doesn't work good

here is the measure:

http://www.popsoft.ro/poze/7800GS/multi.jpg

this is 0 zero

and here are the points I measured:

http://www.popsoft.ro/poze/7800GS/points.jpg

cowie · 10-12-2006, 23:13 | posts: 10,891 | Location: new jersey

sure it does for me anyway

PAIIITET · 10-12-2006, 23:18 | posts: 44 | Location: Russia, Tomsk

Quote:

strange you only ground a terminal ... (you put a terminal of a chip to the ground ???) what is on the otherside ? where is connected that pin ???

what does it do ? a lot of questions here mate ...

Method is founded on VID table from Datasheet ISL6568

By default VID AMD HAMMER

Code:

V4 V3 V2 V1 V0 
1  0  0  1  0 = 1.1v

Сonnect V4 to Ground 

0  0  0  1  0 = 1.5v

bernek · *Last edited by bernek; 10-12-2006 at 23:27.*

Quote:

Originally Posted by PAIIITET

Method is founded on VID table from Datasheet ISL6568

By default VID AMD HAMMER

V4 V3 V2 V1 V0
1 0 0 1 0 = 1.1v

Сonnect V4 to Cround

0 0 0 1 0 = 1.5v

take a look at my pics pls

Yes I took a quick look to the datasheet of the current regulator.

If I have the same ISL then modification can be made just I have to look again at the voltage table in the pdf.

I have 1.4 default Voltage for G70

0 0 1 1 0 for 1.4 default

vid2 to ground will give me 1.5 ????

0 0 0 1 0 for 1.5 ?

PAIIITET · 10-12-2006, 23:35 | posts: 44 | Location: Russia, Tomsk

bernek
Please measure resistance

bernek · *Last edited by bernek; 10-12-2006 at 23:40.*

Quote:

Originally Posted by PAIIITET

bernek
Please measure resistance

will measure right away

only a second !

is it posible to be ZERO ???? or maybe my multimeter is wrong ...