ex-4870 user reporting in, now I'm on HIS HD4850 IceQ4 turbo crossfire. wonder if anyone here who are doing 4850 crossfire?

hey bro, mind test out how much u got for 3dmark06?

P/S: Still haven't sold your 4850?

This post has been edited by metsatsu: Oct 15 2008, 07:03 AM

Apparently almost the same. I think guru3d has a review of cf 4870+4850. U can try googling it

so u did pencil vmod for both cards eh?

by the way, mind to post up your 3dmark06 score as well?

This post has been edited by metsatsu: Oct 15 2008, 05:23 PM

obviously not bios mod. bet my birdie on it that it's hard modded


































joking joking 99% sure, and won't bet anything

well both the 4850 and 4870 cores are the same RV770 core. it's just that by default 4850 is fed with 1.158v for the vcore and 4870 fed with 1.236v, so that i can it be oc'ed higher. Alot of the 4850 3rd party manufacturers actually set the vcore for 4850 at 1.12v or even 1.08v to keep the temp low, but it is possible for us to bios mod it to 1.158v which is the maximum for 4850. with 1.158v we can oc the core speed to 700mhz without sweat. anything higher than that would require a hard mod. u can google about '4850 voltage mod' or '4850 pencil mod'. U will find alot of info about it.

so far my HIS 4850 IceQ can do 700/1130 after soft modding to 1.158v, but any higher oc will crash.

lol. game on then. keep us updated. oh here's a link for u to tickle your urge to oc further LINK

not mine though, mine is working so far so good. even in cf

I'm using CCC 8.9

bro tampoi, mind to tell us which pencil mod u used for your his 4850? coz as far as i know, the first pencil vmod method (the safer one which allows up to 1.4v) cannot be done, coz there's nothing there to paint. so did u use the 2nd one?


Attached thumbnail(s)

that's strange, u sure there's a resistor there (where we supposed to draw if follow the 2nd method)? coz mine is exactly the same as the 2nd method's layout. here's a picture of my his 4850 pcb



which is the same as the techpowerup.com's 2nd method



coz i know if follow the first method, there's nothing there to draw (if u note the picture which i have taken)

kinda confused, coz our his 4850 pcb layout is totally different. do u mind if u post a pic of your pcb or just draw on the pic i snapped? thanks in advance

This post has been edited by metsatsu: Oct 16 2008, 09:13 PM

so what ur saying is that we draw the strokes on the black resistor? (red arrow)

but how did u know that we r supposed to draw that black resistor? did u read from a guide? or did u get info from other forum?

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Added on October 16, 2008, 11:35 pmbro why did u downclock your core speed?

This post has been edited by metsatsu: Oct 16 2008, 11:35 PM

oic. so that's how the gainward 4850 bios works? my his behave like that

yah bro. kinda waste to replace the GS HSF could have just bought a reference card

I thought the max vcore that can be edited and recognized by CCC is 1.158v? if u use the older RBE to edit to 1.2v, u won't be able to boot as the ccc doesn't recognize 1.2v?

true. I actually knew that ccc 8.7 recognizes 1.2v. but ccc 8.10 is already out, takan nak use old driver?

ok ok. so what was the last version of RBE that has 1.2v enabled?

I thought rbe 1.15 doesnt have. Coz im still using that

Yeah bro. When i drop down the voltage box, the highest value is only 1.158v