Hello guys, this is my first time overclocking my GeForce4 MX 420. I read through all the guides but im still not sure wats my graphic card limit. My original memory clock was 333MHz but now im at 368MHz and when i run the 3D Mark thing, everything seems to be ok. Im afraid of my graphic card being spoiled if i go any higher.

PS. Im not really sure how to tell whether the graphic is good anot in the 3D mark.

tune it higher both ur core/mem speed until got artifact in 3dmark test..
raise ur core speed first then ur mem...
when artifact appeared, lower ur core/mem speed abit till the artifact gone..
dun be afraid dude, u'll not spoil ur graphic card..

u can raise ur GC memory..and try some benchies..

it consider ok unless u got some artifac..

Ok, thats the problem.... Im not very good at spoting artifacts. The 3D Mark only offers me 1 test which is the flying dogfights in the air. Could u guys give me some hints to spot those artifacts.

i used Rivatuner and ATI TOOL to OC my Graphic card.

but so far using the rivatuner no prob....

Ati Tool ,

i almost lost my Gc there.... i think i used the find max core bar...

If you see white spots all over when the benchmark is running, that is artifacts! Its like snowing.....lol. You won't miss it. If you have very little artifacts, it is like a white spot here and there sparkling like stars.

The best way to see artifacts is using a darker background benchmark. Download 3DMark01 SE..........artifacts will be very easy to spot on the 1st benchmark. Moreover it is more suited for your videocard - the others are for higher more modern videocards.

u are using 3dmark03. it is not very suitable to test ur card coz many new 3d function ur card does not support so it only let u run the 'Wing of Fury' game test.
try 3dmark01SE.

make sure u hv better cooling also

Thx for ur help guys, im downloading 3DMark01 now. Is cooling really necesary for this procedure?

i last time owned this gc.. winfast mx420... to say d truth, dun expect too much in temrs of oc... but it definitely better than integrated gc...

for d coolin part, u can jus use a csing fan blowin at it....

btw, wat driver u r uisng?

Erm.. i think im using a nv4_disp.dll for my main driver.

ermmm i mean wat version? 80.40 or 40.0 or wat?

u can diy ur own PCI fan card, using one or even two 80mm case fans..

or just blow a house fan to ur case..sure cool

i have never done that before...

but i know a friend of mine who does.....

and dont forget to put it at high speed... ( no 3 or 4 )

oo i think my driver is version 6.14.0010.5216 (English).

Btw, my memory clock is now 408MHz but still no sign of any artifats. My default memory clock is 333MHz, should i go on further?

This post has been edited by CyberTroop: Apr 3 2006, 02:05 PM

go on til artifact com out lo
lol OC MX420,nvr get to OC my mx440 last time, good luck!

Ok, i just found out my clock speed started showing artifacts at 483MHz so i set it to 473MHz. My question is can the clock speed be overclocked from 333MHz to 473MHz without any coolers?

This post has been edited by CyberTroop: Apr 3 2006, 07:37 PM

Can... until artifacts start to show again then you lower a bit more.

Ok... btw can i use a fan from a PSU and add it into my CPU instead of using a house fan?