AMD HD 7970 overclocking with LN2 (14791 Single GPU 3DMark11)

Here is the short video about my LN2 tests with AMD HD 7970 graphics card. Card is fully modded and I use traditional variable recistors for VGPU, Vmem, Vpll and for OCP I use Rampage IV Extreme motherboard and DIGI +vrm program. That combination works perfectly and this VGA card can produce quite ok results.

The setup:

  • Ramapage IV Extreme
  • AMD HD 7970 reference
  • G.Skill 16GB Ripjaws-Z memory
  • Kingston SSDnow V200+ SSD (Super fast load times)
  • Corsair AX 1200W
  • Windows 7 64-bit
  • SF3D OC Inflection point ln2 pot
  • Ryba fat pot for vga

Next time better CPU on hard pushing for graphics card.

Thanks to Jimm's PC Strore and other sponsors to make this possible!


5

Canada Vinster says:

Great score, if you don't mind me asking, what were the temps were you able to sustain on the GPU with those voltages?

Finland SF3D says:

Vinster said: Great score, if you don't mind me asking, what were the temps were you able to sustain on the GPU with those voltages?


Temperature was around -180C to -182C during load. Only thing what failed on that session was the moment when I tried to film thermometers and voltage. Camera was not recording, even I thought so.



P.S Someone disliked the video..haha. It feels great to get back on action this year..I can already smell all the haters out there.

Hiwa says:

Nice run one more time here :D
Petri you can load os at -180 ? if yes thats awesome man i can't load os lower than -85 (loose display )
pll =1.12/1.15
vcore +115 bios(1.60 idle)
1.75 mem

Finland SF3D says:

Hiwa said: Nice run one more time here :D
Petri you can load os at -180 ? if yes thats awesome man i can't load os lower than -85 (loose display )
pll =1.12/1.15
vcore +115 bios(1.60 idle)
1.75 mem


Yes, for some reason this card have no issues on entering the OS with full pot. During 3D load it looses display now and then as you can see from the video.

Hiwa says:

Nice.

u set Digi+ VRM settings in bios or left Auto and set in OS?

sometimes system hangs when i set it in OS

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