Thanks for the info.

should i update my ati driver to version 9?
i'm still using the old one.. 8.12 or something..

sorry to off topic

No problems bro, just upgrade to the latest Catalyst to get some bug fixes and stuffs

anyone know what's the stock memory voltage for 4850??? wanna do volt mod and voltage tweak but not sure bout the actual vmem for 4850 @@

Take a look here bro

http://www.techpowerup.com/articles/overcl...ng/voltmods/151

aiya this 1 i noe de... but i need to noe the default memory voltage ... core voltage defaults at around 1v lidet, 1.084v n so on... bumping to 1.21v is considered the limit with a reference cooler... but my temp i can say is quite low, so shudnt be a prob here

btw uzairi, im not sure if that pic can be used for my asus 4850 or not @@... havent tried since i dun have the time and i forgot to take ati winflash home hahaha... the vmod in da pic is reference card... not sure if mine is reference card or not @@

That is for reference card design.

To do the voltmod the most crucial thing is the DMM, why not check the stock voltage yourself ?

Since after the mod the volts would increase and you need to monitor them in order to avoid any mishap like overvolting it too much and risk frying it.

how can i overclocked my HD4870 ? teach me pls!

Try using the Catalyst Control Center's function Overdrive and OC from there. Any problems please share with us here.

i wanted to oc my toxic hd4850... but always not stable... ni help?

hmm, i heard if too much oc gc will be broken ?

What tools/software did you use to overclock and test the stability ?

If you are still withing the CCC's limit then it would alright.

if more high digit we put , more performance we get ? i dunno to oc my hd4870. if i pull to the limit , what happened ?

Jerky graphics, BSOD, Hang and ETC.

-pWs-

BSOD when playing games, hang etc.

Best scan for artifacts after u oc with ATi Tools

last time i use riva tuner to oc ....increase 10 then proceed with 3dmarks..if no artifact means ok right?

Rivatuner224 and test with 3dmark...but then my whole system hang...have to restart

if OC use CCC, i can see some pixel problem in game

found the stock voltage for core... but not for mem haha... i dun even noe which part of the card to monitor using voltmeter haihhhhhhh my card is totally different than reference card @@

my card managed 750mhz without vmod and bios tweaking @ 1.046v, but wanna go 800 core, even when i put 1.25v with bios tweaking, still got artifacts T_T... guess really need to do pencil mod haha

This post has been edited by iBenQ: Apr 19 2009, 07:29 PM

Try Furmark, better

That means your oc is not stable.

The page that i gave you show the measuring points

Bios vmod tops out at 1.2v and u need to put 1.158v at the bios so that it would detect and use 1.2v

but bro, the site u show me is different than my board lor... checked at the location, dun have the chip number like the website showed T_T

when i get home ill try to set at 1.158v, hopefully can get 800 core or higher stable~!!!