Can't adjust voltage with HD7970 DCII

[anders190]

Hi!

I got my new card yesterday (ASUS HD7970-DC2-3GD5) and have been trying it out since then.

I have a small problem however. If I go into GPU Tweaks settings and enable "Overclocking range enhancement" the voltage is still stuck on 1178-1188 mV while both GPU clocks and memory clocks get unlocked (can move past 1125MHz on GPU and 6300MHz on memory).

I have been looking around a few times, enabling and disabling and such but I can't get it to unlock.

Using Catalyst 12.4 WHQL and GPU Tweak 2.0.8.3.

[Kyle]

Having the same issue as anders. Did anyone find a resolution for this? Really don't want to return my card.

Is it possible to flash with the DC2 TOP bios or something?

[bit1der]

Have me DC2 tested today. No way to control Voltage by ANY program including GPU tweak. Contacted ASUS support, but they adviced me GPU tweak again:( Flashing BIOS from TOP version won't help.
Funny considering this card meant to be bought by overclockers. All this hotwires, super VRM...
FAIL...
Realy... REALY hope to see a decision of this problem ASAP, or I'm going to return the card..

[loccc]

Hey. I've just the similar issue. My DC2T card default voltage is 1.175v and I cant increase the voltage beyond 1.182v. I've tried different drivers and gpu tweak versions. Also afterburner and sapphires TriXX with no luck on voltage increment. I'm pretty confident by now that there are 2 different revision of the cards floating around and one of those is currently voltage locked. Would be nice to know if asus will release gpu tweak version which supports all the 7970 DC2 cards as I am returning mine if I am stuck with default voltages with top of the line card.

[Retired]

just got reply from german asus support:


ASUS don´t hear about this Bug/Issue. If possible, test another 7970DC2 and contact your Dealer to ask for the warranty Process.


lol just lol

[hill01]

It's kind of good to hear that there are other people with the same problem, on the other hand it's quite sad there are some examples of asus' top cards that seem to be limited.

However, since my first post I had frequent email contact with Asus Tech support. They suggested quite trivial stuff like "did you unlock extended overclocking?", disabling OC in CCC and trying their most recent version of GPU Tweak. But none of it worked. In the end I had to fill out a tech support document with lots of serial numbers and so on, with a promise that they would forward it to their main tech guys. That was about two weeks ago and I haven't heard anything back yet. It would be a real shame if no solution could be found...

[loccc]

hill01 wrote:
It's kind of good to hear that there are other people with the same problem, on the other hand it's quite sad there are some examples of asus' top cards that seem to be limited.

However, since my first post I had frequent email contact with Asus Tech support. They suggested quite trivial stuff like "did you unlock extended overclocking?", disabling OC in CCC and trying their most recent version of GPU Tweak. But none of it worked. In the end I had to fill out a tech support document with lots of serial numbers and so on, with a promise that they would forward it to their main tech guys. That was about two weeks ago and I haven't heard anything back yet. It would be a real shame if no solution could be found...

It is at least a bit promising that the tech support had suggested you to try different things. That basically means that they recognize that there is some problem with the voltage being locked! At the end though I'm sure you're tried and done everything like one should. The card just is voltage locked at least with current software or card bios version. One can just hope asus will fix this sooner than later.

I've personally tried so many different versions of radeon drivers, asus gpu tweak, sapphire trixx, msi afterburner and even did clean install of windows 7 and windows 8 consumer preview but with no affect. I also tried with exactly with the same versions of drivers and gpu tweak as fellow 7970 DCII TOP card owner just to see my voltage still being locked and other card was not. Also one little interesting thing: The cards which are not being voltage locked seem to be able to use msi afterbutner to read and tweak the voltage. So clearly there is something different between the cards. It might be only the bios but I guess cards could use even different components. Also seems that there is a lot of different bios versions in the cards based on gpu-z screenshots. I am not familiar with those bios markings so I cant say based on just bios version which cards are locked or not.

[Retired]

new infos from offical asus guys germany:


7970dc2t voltage locked at 1125mV

7970dc2 voltage locked at 1175mv

for more you need to use hotwire, everything else shoud be a bug. there are alos several cardswith faulty bios outside, which should been rma´d as asus said.

my opinion: asus *****!

getting a new 7970 from different company, i´m really disappointed. odered 25 of them for oc event and now this.

[loccc]

Maybe you got the voltages wrong way around as I've 7970dc2t and it have default voltage of 1.175v.

[sparrow_69]

After a month of research, I finally found the solution to not being able to change the core voltage on my asus 7970-dc2: http://www.overclockers.com/asus-hd7...cs-card-review

The solution is to use ver 2.2.1.4 of gpu tweak (can be found in the comments section at the end of the review). For some reason, none of the other (newer or older) versions of gpu tweak allow voltage control. I had also tried several version of msi afterburner & sapphire trixx, none of which worked.

This issue was driving me nuts for over a month. I tried several versions of the aforementioned software, different drivers, etc etc. Hope this info helps someone else out!

[psyside]

Bump, this have to be solved!