Geforce 2 MX 100/200 Vmod [Archive]

KaKa

11-30-2002, 07:32 AM

i recently vmodded my V7100 gf2mx pure here, used 100ohms resistor on a fan switch (those used to connect a fan to the mobo)..

GPU @ 250mhz here..

and about the vmod for ram, I think its knda impossible, since the ram voltage is contled by the AGP connector itself..

SektorX

11-30-2002, 01:55 PM

Tried an asus 7100 tonight, added a 39Ohm res. between pins 1 and 2 of the vchip.

got me a OC of core @ 268 highlevel / 267.3 lowlevel

3D mark (http://service.madonion.com/compare?2k1=5198713)
:D

KaKa

12-01-2002, 02:29 AM

39 Ohm??

SektorX

12-01-2002, 04:09 AM

yep they didn't have any 120Ohm res. left in the store, so I bought a couple of 39Ohms they did have (cheaper than a pot)
so I tried 3 in serie at first that gave me the normal vmod, but I got to the max pretty soon, so I tried 2 in serie. That gave me some more but my abit siluro was spuwing out the heat and got unstable. Luckily my friend got an old 7100 and I tried the 80Ohms mod on that one, hardly any heat. I got much higher clocks but the score was substantually less. so I decided to try a single 39Ohms res. I worked, heat still was doable and I got a stable bench, just let the chip burn in a while @ a 15mhz higher speed, or it will freeze.

saaya

12-02-2002, 02:28 AM

hmm i got my g2mx from gainward(golden sample :D) to 250 250 without any mods... the ram is 3.5ns, so ill try to push it to 300 with a bios editor :banana:

the ram on tha g2mx cards gets their juice directly from the mobo? u sure? ...does anybody have a link or pics for me to do the vmod on the core? thx:toast:

SektorX

12-02-2002, 08:35 AM

those specs are very high in accordance to my 2 cards, I didn't raise the voltage of the rams (simply because I couldn't) and never got the rams of the siluro above 207 stable and the asus at 205

the core could go up to 225 without voltmods on the abit and 235 on the asus.

saaya

12-02-2002, 12:25 PM

gotta love gainward for that g2mx :D ...i think i payed 180$ though...very expensice for a g2mx... well the memory was really sweeet etrontech 3.5ns memory, i saw some guys on another page that had the same card and they got the memory to 350! ...well thats what they say...should be possible though...

VoRtAn_MaDgE

12-27-2003, 07:55 PM

7100 gpu mod =) (http://www.overclockers.com/tips825/)

My only question is...

In my card the name of the chip isn't US1150 but what is written on the chip is AMS1505CMA0037.

The layout of the chip is exactly the same but but the legs are turned 90degrees down...

Any idea????:)

I guess is the same.

cumps vortan

lalPOOO

01-01-2004, 03:20 AM

Ah... Well I'm going to go out on a limb and assume the geforce 2 mx100/200's get voltage from the 3.3v line like the mx400s. If that is the case F*CK voltmods.
Raise your 3.3v line to around 3.47v and see how far you can go with that. The 3.3v line controls the memory voltage and the core voltage (a bit differnt with the core) I've found that I can run the same speeds I was running when I had 100 ohms it just with the 3.3v line being high. For the max stable core I did need to turn it back on though. (I have my voltsmods for the card on a switch, 100 ohms, 120ohms and normal voltage :D)

Clocks for my card below. (I'm actually on the 2nd page of 3dmark2001 for the geforce2mx400's with this card now, with 1 project per user on, its just the crappy card ram thats holding me back)

You lucky.... I would really like to get my hands on one of those V1700s, just so I can be the king of geforce2mx400s :p:

RuKK

01-02-2004, 08:37 PM

What about finding which pins are 3.3v on the back of the AGP with a multimeter and soldering a wire onto them and supplementing them with 3.6+v? or even more? :D

VoRtAn_MaDgE

01-02-2004, 11:14 PM

I'm just searching for the right "CRAZY MANIAC COOLING SYSTEM" to use in my v7100pro:D

for now the mod is already done...

front...

http://www.pcdiga.com/Imagens/VoRtAnMaDgEv7100%20gpu%20vmod%20front.JPG

back...

http://www.pcdiga.com/Imagens/VoRtAnMaDgEv7100%20gpu%20vmod%20back.JPG

I could not find any led for the on/off swith at my home so i guess it will stay like that, for now;)

cumps
Vortan

lalPOOO

01-05-2004, 11:59 PM

Originally posted by RuKK
What about finding which pins are 3.3v on the back of the AGP with a multimeter and soldering a wire onto them and supplementing them with 3.6+v? or even more? :D

Well, I did try upping my power supplies 3.3v line to 3.6 but the card just gave me bull. Massive artifcats of the kind I've never seen before to an instant freeze on first bench. Reboot, get into windows, try to bench, I think the computer crashed before i saw anything on the screen after hitting benchmark in 3dmark. After another reboot I don't think I made it into windows so I decided to call it quits :D
I have the adjustment pots for my 3.3v line inside the powersupply, but since I got a new drill for chrismas, I'm going to fix that so i can try adjusting "on the fly"

sayaa: how can the card have 3.5ns ram? the fastest ram on any geforcemx is on the asus v1700pro with 4.5ns if you need proof just look at pretty much everyone on the first page, and 80% of the people on the second page of geforce2mx400's (aside from me) are using the v1700pro.

I really gotta get my hands on one of those. If anyone knows where I can get one for less the $60 canadian shipped, please let me know. I've got some pretty crazy stuff in mind to blow the #1 geforce2mx400 score away :D

edit: and with the upcoming cold weather in canada I should be able to get on the first page (we're finally getting under -4...)

VoRtAn_MaDgE

01-12-2004, 07:22 PM

I've just finished the cooling of my 7100:D ...
I've tried the mod in work...2.01v default....2.64 with mod (pot at 100ohm)...

here she is:

http://www.pcdiga.com/Imagens/VoRtAnMaDgEv7100%20front%20cooling.jpg

http://www.pcdiga.com/Imagens/VoRtAnMaDgEv7100%20back%20cooling.jpg

Just need time to put my new baby on my pc:(

cumps
Vortan

lalPOOO

01-13-2004, 02:58 PM

Looks pretty sexy. I personally don't think you'll need that many fans, but I guess it can't hurt :D
You "might" be better just watercooling the core. Let us/me know how far you can get it though when you do put it in.

VoRtAn_MaDgE

01-13-2004, 07:42 PM

I honestly dunno if watercooling this card would be better then this "crazy" cooling...you can't imagine the cold that the p4 cooler stay as soon as i connect that tornado to a molex:D ...
Let's see when i connect that baby what happens:D

lalPOOO

01-13-2004, 09:09 PM

Well, what I ment was that the best you possibly can do is ambient with aircooling. With water cooling its often easier to pelt/waterchill, which will be required if you want to pass 290 on the core.

Btw, what clocks have you reached, you don't seem to have posted them?

VoRtAn_MaDgE

01-14-2004, 03:34 AM

I understand u...i didn't use gf2 yet...i'm out of time right now:( .
There are guys in the orb that past the 300core with just aircooling:)

lalPOOO

01-14-2004, 02:34 PM

Like me :P:

I doubt its just plain air cooling though. They're most likly putting there comp near a cold window or something. Its not that the cooling isn't strong enough, its that a lot of the cores aren't going to go to 300 at 25 celcus.

VoRtAn_MaDgE

01-14-2004, 04:52 PM

Hope is the last dieying...so we will see...with all this fans the vga stays really cold so...it's a matter of time:D

Bennah

01-17-2004, 08:35 AM

Does anyone know how to vmod a MX420? I think its a Microstar one!

I'l post some pics of my modded card soon ;)

I know that has only one chip on the front of the card and 4 smaller ones on the back!

I just need general info of where to vmod and where the measuring points are!

lalPOOO

01-19-2004, 01:26 AM

geforce 4mx420 is a whole different thing. You're best off starting a new thread, or looking around for a thread on mx440/420's. Sorry I can't help you man.

Bennah

01-19-2004, 01:59 PM

Ok no probs, i'l get some pics of the card and ask around!

VoRtAn_MaDgE

01-19-2004, 04:55 PM

I dunno if the vmod is the same but check the vmod of the MX440 (http://www.vr-zone.com/guides/NVIDIA/MX440VMod/)
Cumps
Vortan

CrazyXP1700

01-20-2004, 05:34 AM

that guide didn't help me out at all...
they did that to a sorry card my 1.6ghz, 256mb ram, 128MB MX440 from 275/400 oced to 357/546 got 6428 3dmarks

http://service.futuremark.com/compare?2k1=7405962

i want to volt mod mine... but that guide didn't do crap...
and the card only got to my overclocked score... lol

lalPOOO

01-20-2004, 11:35 PM

...If you didn't do the voltmod, then you can't say the guide didn't do anything. If you don't understand how to do the voltmod, just ask.

Looks like you'd want to use a 1k vr. Although you'd always be running your core at higher voltage then stock even with the vr at 1k, but you're not going to go to the trouble of soldering it on there to run just a bit above stock voltage are you? ;)

So far I've gotten this (edited picture) out of it. It appears as though there is another step, where you "All you have to do is change R612" I am not sure what you change it with though. Try sending Holst a PM, hes great with Vmods and electronics in general.

CrazyXP1700

01-21-2004, 04:07 PM

what i beleve to be my VCC chip oh wait... i have a chip on the core side that has 8 pins on it... damn im going to have to go look at it...

but yeah... i want a little more than just a bit of extra voltage

VoRtAn_MaDgE

02-04-2004, 08:20 PM

So lalPOOO how is your walk to the 1st place at the orb with gf2mx400????
I don't try with my yet... i'm finishing the bench's with the 9800xt, after that i can see what my v7100 can give it to me, let's hope she's a good oc:D
Cumps
Vortan

lalPOOO

02-04-2004, 10:08 PM

Well, my other card had no shot at getting to 1st on 3dmark2k1. The memory speed was just way too slow. I imagine I could have pushed it a bit farther, but it just wouldnt have been worth the trouble for just a couple more points. So I got an asus v7100pro 32mb which has so far on stock cooling surpassed my results even with -10 air blowing onto the card. Right now it maxes out at 272/262 where it starts artifacting like mad, and crashes. So I'm just sort of waiting until I pick up a nice copper cpu heatsink, or I get a new pump. Then I'll do the voltmod and let er rip. Right now my current record with the new card is 5025, which is just with room temp air.

Wouldn't mind some competition though... ?

VoRtAn_MaDgE

02-05-2004, 12:06 PM

I'm not a maniac in marks (spends much of a guy's time) but i could give a shot after finish this 9800xt...
Good luck on your bench's;) !

Flexus

03-04-2005, 08:16 AM

I know that this thread is old, but i need a Vgpu and Vmem mod for my card. The Vgpu must be on the 1048 chip but where and which pin? And Vmem :confused:

*Pic ~ 300kb* (http://fl3xus.micha99.net/AbsackerPage/gf2mx200.jpg)

Edit: On the back are only some smd caps...

argh need help!!!

lalPOOO

03-04-2005, 12:50 PM

Which card are you talking about? geforce 2 mx100/200 or a geforce 4 mx*** ?

ah, saw your image. I couldn't track down that regulator, so I'm not really sure if I can help you :(
Vmem is your 3.3v line though. The ram on there kind of sucks though, you'll probably be able to get 225 out of it at best.

Flexus

03-18-2005, 11:03 AM

I found this in an other thread

May be late in replying to this, but what kind of regulator is your gfx card using?

Mine is using a 1084 regulator, which is the same as the LM317 we are using for our rheobuses. I just need to change the value of the resistor to ground and I will get the voltage I want, though I didnt want variable as it really is sensitive to resistance. :)

I have the same regulator, on my pic it´s right after the AGP port...

Edit:

I´ve made a detailed pic:

http://fl3xus.micha99.net/AbsackerPage/gf2mx200d.jpg

cant somebody help me??

wittekakker

06-29-2005, 03:34 PM

I got this PM from Flexus due a threah I posted in yesterday:

I have also a Geforce 2MX 200 but mine is from Gainward... So maybe you are lucky an find a mod for a Card with an US 1150 Regulator on it... Mine has an other regulator.. I can think of the mod, but I dont want to try until my new System is ordered.... Here is the thread: XS-thread (http://www.xtremesystems.org/forums/showthread.php?t=5263)

Well, I took a close-up from my card and got this V-regulator:
http://home.scarlet.be/~gebrvd00/vr.jpg
Different vender, but I must be somewhat the same. I look for datasheet in a few sec. EDIT: found it: http://www.helm.com.tw/product/ir/paper/source/IRU1150.pdf

I found a Vmod link for the 1150: http://www.madshrimps.be/gotofaqlink.php?linkid=2073
EDIT: X-bits labs has article to: http://www.xbitlabs.com/articles/video/display/geforce2-overclocking.html

VoRtAn_MaDgE

06-30-2005, 10:45 AM

That chip is the same on asus v7100pro...

v7100pro (http://www.overclockers.com/tips825/)

same guide i use for my gf2

http://www.pcdiga.com/Imagens/VoRtAnMaDgEv7100%20front%20cooling.jpg

http://www.pcdiga.com/Imagens/VoRtAnMaDgEv7100%20back%20cooling.jpg

Flexus

06-30-2005, 12:01 PM

wittekakker

07-01-2005, 02:36 AM

This cooling is sick! Be happy that your AGP port don´t brakes away from your board! I will try to mod my GF2 when i have my new system, atm i have the sys in my sig with the gf2 because my 9600 xt is dead....
Jup, going to do that also. Now I'm only gettin 235MHz on core in 3d mark 03. But I'm able to go up to 250 in windows, so I might to able to get that 3d mark stable with voltmod.
And I have this unused 240W TEC over here, I hope it doesn't have coldbug :p:

VoRtAn_MaDgE

07-01-2005, 04:55 AM

This cooling is sick! Be happy that your AGP port don´t brakes away from your board! I will try to mod my GF2 when i have my new system, atm i have the sys in my sig with the gf2 because my 9600 xt is dead....

My gf2 passes the 300mhz in the core with the vgpu off, didn't tried to turn it on yet... right now this vga is on a computer shop (pcdiga (www.pcdiga.com)) to make a nice view lol...

Didn't tried to bench it cuzz is the sdram version and sucks, just for the fun!

What happenned on yours 9600xt Flexus? Maybe we could bring her to life again ;)

Flexus

07-01-2005, 05:29 AM

I don't know whats happened, I think the Zalman Cooler has damaged it on the way to a lan party... I've seacherd some missing caps or sth like this but i found nothing.. Maybe I make some high-res pics and post them so you find sth... In 2 or 3 weeks I will have my new system, then I try the mod on my geforce!

wittekakker

07-05-2005, 01:14 AM

past 300MHz core is nice man!
mine is only getting to 235MHz.

I switched stock heatsink with a P3 heatsink last night. Lol, this thing isn't getting nowhere near hot :D Here are some pictures for those who like to watch pictures :)

http://home.scarlet.be/~gebrvd00/gf1.jpg
http://home.scarlet.be/~gebrvd00/gf2.jpg
http://home.scarlet.be/~gebrvd00/gf3.jpg
http://home.scarlet.be/~gebrvd00/gf4.jpg

EDIT: did a quick testsession and now 245MHz on core is possible.
I'm going to do the Vmod next weekend I think.

wittekakker

07-12-2005, 04:53 AM

And so I did the vmod:

http://home.scarlet.be/~gebrvd00/gf5.jpg

I got a 100 Ohm pot and a 100 Ohm resistor in series. In theorie I should be able to regulate between stock voltage and +-2,6V.
With rivatuner I was able to push the slider to its most right position, benchmark stable @ 265MHz.
With Coolbits I could go even higher to 270MHz on core.
Nice improvement this vmod.

Most stupid thing is that my 3d mark score didnt went up, and even got worse when hittin +260MHz. My VGA RAM overclocks only 20MHz, and its really holding me back :(
Ah well, it still was fun, and it's a nice practice for vmodding.