ATI 4850/4870 voltmod thread

[DemonEyez]

I have 1 of these cards. I've just doen the standard hardmod with 100k pot and it works (well card boots into windows OK). Waiting for glue to dry now before I do anything else with it.

Edit. I'm sure I sdet the resistor to 100k beforer soldering the mod, but I've got a core voltage of 1.4v now, which is fine for me but I gather its what people consider to be the upper limit for these cards.

Which one do you have? The EAH4850 512M with 3 phase pcb or the EAH4850 TOP with 4phase pcb?

Is there a known pencilmod/hardmod for the ASUS 4850 with Glaciator fan?

Just found out that pcb is a non reference model


Edit: Forgot to mention, pcb is the 3 phase design, same used in some Asus 4850 TOP.

I was under the impression that the Asus EAH4850 TOP uses a 4 phase pcb design. Can anyone confirm this? These pictures are from the Asus website and show 4 phase pcb for the TOP and the 1024MB cards, only the 512MB uses 3 phase:







I planning on buying a second HD4850 for running crossfire with my first Asus Reference HD4850, which has been voltmodded and runs at 850/1150.
I didn't read this topic (and others) for a few weeks and now to my surprise its realy hard to find those reference pcb single slot HD4850's

I'm going to voltmod the card so i'm looking for a card that has a working voltmod for it. So with all of this in mind , I thought I had the found the right card for the job in the EH4850 TOP