9800PRO and Vmod

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09-10-2003, 10:58 PM
edisonwu

9800PRO and Vmod

I found this image, but I am a light user, I really dont know where I should begin....
please, tell me more details about modifying the 9800PRO voltage.
;) ;) ;)
thanks in advance!~
09-10-2003, 10:59 PM
edisonwu

why is it locked??
09-10-2003, 10:59 PM
edisonwu

http://www.maximumoc.com/img/hardwar...ltage_mods.jpg
09-10-2003, 11:07 PM
Major

I'd just do the Vgpu mod first, its the least likely to kill your video card and pretty simple.

Make sure that the variable resistor it set to max resistance b4 you soldier it in place so that the Vgpu will be at a safe level.

I've gained little with the Vmem mods, some folks have had better results.

The Vref mod can kill your card if your not real careful, shouldn't take the Vref above 1.5v !
09-11-2003, 12:01 AM
STEvil

And make sure your multimeter has a good battery.

I just did the VGU on my 9700np and my multimeter was reading 2.25v... I was "WTF HOLY §§§§ THIS ISNT A 10K POT!!"... then I changed batteries... darn battery light.. lol.

Unfortunately, my card sucks. 1.6v = 400mhz so far (maybe 405?). 1.75v = 425mhz 8-(

Fortunately, my cooling keeps it ice cold up to 1.75v so far... I doubt even 2.0v would phase the chunk of copper on there 8-)
09-12-2003, 12:47 AM
ALT-F13

edisonwu, WELCOME TO XTREME!

STEvil. We've tested R9500 up to 2.7V, so 2.0V will be pretty safe voltage.

Major. Are you sure that Vref over 1.5v is dangerous? 'cos my card works exactly at that voltage... Maybe i should lower it a bit (though it helped me a lot - mem OC goes from 375 to 400 mhz)
09-12-2003, 01:30 AM
SAE

Quote:

Originally posted by Major Slaughter
The Vref mod can kill your card if your not real careful, shouldn't take the Vref above 1.5v !

How would it look like when it's dead through vref ? :D

Are there any burn marks ???

Maybe I'lll get a good rma :D
09-12-2003, 10:17 AM
STEvil

2.7v on the core?

You were either drunk at the time or you have much more money to play around with than I do! 8-)
11-15-2003, 09:41 AM
edisonwu

Sorry for my disappearance....
You know I will always come back.
Guys please tell me the voltage limit and how to modify...
I am really a goddamn freshman...I know nothing about that..
11-15-2003, 09:49 AM
edisonwu

what will happen if made the VGPU too high? is there any chance to put it back??
11-15-2003, 09:57 AM
Horus

just use a variable resistor and set the resistance higher again

all the resistors shown in the picture above are variable resistors
03-04-2004, 10:55 PM
T07N

What's the vref and vddq?
03-05-2004, 11:26 AM
***Deimos***

edisonwu, bluestar88...

how much money have you paid for that card. Can you afford to burn that money? Is 380Mhz really that much slower than 400-425.

Simply... if you don't know exactly what you are doing and can easily afford to get a replacement, then this isn't for you. Stick to regular, non voltage modified overclocking... you'll thank we later, when you ignore this message and screw up the volt mod.

BTW: Ati doesn't just blindly give you a replacement card... They know exactly which pins too look for for traces of solder. It's not like volt-modding cards is a secret they don't know about... my friend who works there was one of the first to do it.
03-07-2004, 01:11 AM
T07N

Edited by JBELL
03-07-2004, 01:46 AM
asw7576

Quote:

Originally posted by bluestar88
Edited by JBELL

what an a$$ hole !!! :mad: :mad:

moderator, please delete his post.
03-07-2004, 03:50 AM
st0nedpenguin

Quote:

Originally posted by bluestar88
Drink a pill

:confused:
03-07-2004, 04:01 AM
enzoR

Edited by JBELL
03-07-2004, 04:02 AM
Inigmatics

Quote:

Originally posted by bluestar88
Edited by JBELL

Edited by JBELL
03-07-2004, 05:24 AM
`schr0et

Quote:

Originally posted by ***Deimos***
edisonwu, bluestar88...

how much money have you paid for that card. Can you afford to burn that money? Is 380Mhz really that much slower than 400-425.

Simply... if you don't know exactly what you are doing and can easily afford to get a replacement, then this isn't for you. Stick to regular, non voltage modified overclocking... you'll thank we later, when you ignore this message and screw up the volt mod.

BTW: Ati doesn't just blindly give you a replacement card... They know exactly which pins too look for for traces of solder. It's not like volt-modding cards is a secret they don't know about... my friend who works there was one of the first to do it.

Couldn't agree with you more...

You two guys think that he's trying to put you down... but he's really trying to help you...

The best practice is working on PCB's that are ALREADY DEAD its never a good idea to try your first VMOD on new HW.

Think of it this way... its your first time driving a car, you gonna take it on the highway? No, of course not, not unless your planning a one way trip atleast... :D
03-07-2004, 02:45 PM
T07N

Quote:

Originally posted by enzoR
Edited by JBELL

Edited by JBELL
03-07-2004, 02:46 PM
T07N

Stop bypassing my filters....

Edited by JBELL
03-07-2004, 02:47 PM
T07N

thats it - your banned

JBELL
03-07-2004, 02:48 PM
T07N

Quote:

Originally posted by st0nedpenguin
:confused:

I dont tolerate this language

Edited by JBELL
03-07-2004, 02:49 PM
T07N

Quote:

Originally posted by asw7576
what an a$$ hole !!! :mad: :mad:

moderator, please delete his post.

edited by JBELL
03-07-2004, 04:48 PM
apathy^2

Edited by JBELL
03-07-2004, 05:42 PM
T07N

Edited by JBELL
03-07-2004, 06:36 PM
hollywood

This thread has been reported to the moderators. I believe I speak for XS when I say that this type of behavior is unacceptable.
03-07-2004, 07:17 PM
IvanAndreevich

88.. would that be born in 1988?

Instead of READING about a dozen 9800 voltmod articles you come here and start swearing and spamming. That really demonstrates a level of intelligence.
03-07-2004, 07:24 PM
JBELL

Quote:

Originally posted by bluestar88
Edited by JBELL

10 posts ... guess you haven't read the forum rules .....

I suggest you do read them and play nice and this is a first notice .....
03-07-2004, 07:25 PM
JBELL

Quote:

Originally posted by asw7576
what an a$$ hole !!! :mad: :mad:

moderator, please delete his post.

he has been warned
03-07-2004, 07:25 PM
apathy^2

i'm sorry i even stepped into this thread. moderators, feel free to delete my post as i only continued the instigation. i'm sorry.
03-07-2004, 07:25 PM
JBELL

Quote:

Originally posted by enzoR
Edited by JBELL

388 posts ... I expect better

this thread better shapen up or the members in here will become thinner....
03-07-2004, 07:26 PM
JBELL

Quote:

Originally posted by bluestar88
haha §§§§ you, ill go somewhere else

great idea.... BYE
03-08-2004, 02:05 AM
asw7576

bluestar88: LOL...... always get deleted :D

...... bye2 don't come back.
03-06-2006, 10:10 PM
***Deimos***

So I got a little sentimental today, and browsing through my hard drive, came across 3DMark screenshots from the 9800pro days... a 500g copper P4 heatsink on a 9800pro... mirror shine polishing and good tight contact... Vmem voltage mod ... Vgpu voltage mod (obviously).

Ahh.. the sights and smells..
I didnt get quite far (<480), or not as far as I had desired(500), but it was a good learning experience, and a fond farewell to RIP heaven to the brave little 9800pro that almost could.

When I came across this thread I was shocked at all the hissy-fit fuss I had caused by warning some inexperienced users about the dangers of volt mods.
(in my case, a spectacular fireworks and lights and smoke show when a loose wire used for measuring VGPU bridged some contacts on the PCB)