Hello,
I would like to tell you something strange
In normal, with the M17X-R2 is not possible to use Overdrive Ati CCC with the 7970m Dell and the Original Vbios 015.017 but with the Vbios 015.022 Overdrive, yes!
However,
i put the Vbios 015.22 Overdrive, i put the last driver Ati CCC 15.7.1 and it was good but after some minutes, at 76°C in the play "World of warplanes" in max resolution, some big artifact appeared in the screen so i come back at my original bios 015.017 modified at 0.975v by VbiosPacher. All now is ok! (no artifact)
I come back in Ati CCC (with my my original vbios modé) and i see the Overdrive and it was opérational so i put it, but after some minutes in play, i have some small artifact.
So i take my orginal Vbios (015.017.000.001) and i do an other Vbios by VbiosPatcher with 0.975v, 875 Mhz and 1250 Mhz (original is 800 Mhz and 1200Mhz) and when i play the max, i see in HWiNFO64 is 800 and 1200 and not 875 and 1250.
before with the 15.3 driver ATI i see what i put in the Vbios but know with the 15.7.1 driver ati ,no!
But if i synchronise my Vbios modified with the Ati CCC Overdrive like for exemple:
my Vbios: 0.975, 875 Mhz and 1250 Mhz and the overdrive at 875 Mhz and 1250Mhz, it's ok and i have not artifact.
So, in conclusion:
we can use Ati CCC Overdrive with all Svl7 Vbios, i mean "AMD 7970m (Dell) VBIOS package" if we put in first the Vbios "Dell7970m - 015.022.000.001.000000.C42904A1.119 - OverdriveMod - UV 0975v" and, install the last driver Ati ccc 15.7.1 and come back with one Svl7 Vbios.
and after for not artifact, synchronise (put the same frequence) in Ati CCC Overdrive with the frequence of the Vbios svl7.
And it's OK !
What do you think about this ?
My computer shudown at 87.5°C but in générale i have: in 2D, 31-34°C at 1675 rpm and in 3D it's between 76°C at 85°C at 4156 rpm.
Maybe i bought the thermic past Gelid GC-Extrem for remplaced Noctua NT-H1 but if it's just for to win 1 or 2 degrees , is not the best idea !
I have to find a very good tray with fan, Do you know sone one ?
(Sorry for my bad english!)