3870X2 voltmod thread

[Pt1t]

oh noes!!!!1111OneOneonewon

what happened dude, random death?

yes ... i did ~2hours test yesterday evening , and this morning , Blank Screen.

I removed the mod , still Blank Screen ... now -> RMA

[SF3D]

T_M
Have you seen the same limit than I do with this card? My card can do only 972-999MHz in 3D tests. No matter what voltage is used. My card is watercooled and core temperature is low (under 30 idle). It doesn't change this "limit". Maybe the bios is limiting these like in 3870.

Pt1t- Did you get any new bios from quess2098?

[Pt1t]

T_M
Have you seen the same limit than I do with this card? My card can do only 972-999MHz in 3D tests. No matter what voltage is used. My card is watercooled and core temperature is low (under 30 idle). It doesn't change this "limit". Maybe the bios is limiting these like in 3870.

Pt1t- Did you get any new bios from quess2098?

No news from him.

[T_M]

I seem to be limited to 985 as my max clock, same as you with whatever volts. But, i can run the system at 999 it just isnt stable for very long in 3D

[SF3D]

I seem to be limited to 985 as my max clock, same as you with whatever volts. But, i can run the system at 999 it just isnt stable for very long in 3D

Exactly same issues then...

What is causing this? Maybe somebody can rework bios or something. I believe these cores would do easily 1080MHz on water like my 3870 did.

[gOtVoltage]

What program is best,, to Oc this beast!

[spajdr]

guys
as on first page is picture

If i run everest ultimate edition


GPU2 VRM is that is that thing in white box above PULSE chip to upper right? cause if i run ati tool furry cube, it skyhigh to 80+C in few seconds, im not sure where to cool that? GPU1 VRM dont raise at all, im kinda confused

[spajdr]

Nevermind i found it, two biatches in blue box they are (can go over 100C if not cooled, not sure how to cool it effectively)

[jason4207]

yes ... i did ~2hours test yesterday evening , and this morning , Blank Screen.

I removed the mod , still Blank Screen ... now -> RMA

Which test(s) were you running? I'm curious.

[T_M]

My cooling mods for LN2

http://www.xtremesystems.org/forums/...d.php?t=176230

[Astennu]

bleh got the 860 mhz limit in my X2 memory could do 1050.

Does anyone have the new AMD GPU Tool or are you also using the 0.7 version ? It aint working here with the 23 jan drivers.

[jimmyz]

bleh got the 860 mhz limit in my X2 memory could do 1050.

Does anyone have the new AMD GPU Tool or are you also using the 0.7 version ? It aint working here with the 23 jan drivers.

You need the updated tool lib. file from nordic hardware. they used it in the guide for overclocking 2900 crossfire. It allows amd gpu tool to work. when you click on "set clocks" it will inform you the attempt failed, just ignore that it really does set the clocks, as you can confirm with gpu-z or by simply clicking on "get clocks".

tool lib. file from NH. http://www.nordichardware.com/skrive...16/ToolLib.zip

[Astennu]

thanks i dont think i can get past that 860 Mhz i could not do that with ATi tool. Did you all do a bios mod ? or just lucky by getting a 860 lock free card ?

[Bullen]

try putting it to 878, mine crashed at 864 but i could go above without a problem.

[LardArse]

maybe will help , i dunno....

edited first heard some probs

[R*r]

at ocp mod,how to reduce the resistance?take out the R and replace like 3870?

[T_M]

Awesome thanks Peter.
Will give them a shot this weekend

R*r, i think you need to solder on a resistor across the existing one on that track. Correct me if im wrong please as i also need to know

[T_M]

Guys, one of my teammates just pumped 2.4V into his PCIE/crosslinx chip by following the mods above, and now the card is flucked.
While im only a third party in this, i wanted to warn everyone.

[harleybro]

Guys, one of my teammates just pumped 2.4V into his PCIE/crosslinx chip by following the mods above, and now the card is flucked.
While im only a third party in this, i wanted to warn everyone.

I don't see the mod?

[jason4207]

LardArse removed it.

[Jigsaw]

Can anyone offer any help as to whether or not it would be a good idea to add capacitors to this card if it will be vModded and if so, how to go about doing it? Thanks in advance!

[T_M]

My cap mods for vGPUs and vMem.
Awaiting the Masters comments on what ive done wrong heh

[spajdr]

T_M : omg, what is that mess on card?

[T_M]

Annoying remnants of sticky back insulation foam.
Unfortunately i used some horrible for once, and as soon as you try to peel it just shreds. I used actone soaking to remove around my mod points tonight

[Jigsaw]

Other than the sticky crap on the card, those caps are soldered on VERY nicely. Do they increase stability? And what are they? Link or specs?