Diamond x3 7970 @ 670-700MH/s each

[dtmcnamara]

Been running now for about 30 days with absolutely no down time. Settings are as follows:

Diamond HD7970 (7970PE53G)
Stock core voltage (seems to crash when voltage is lowered for me)
Core Clock 1150
Mem Clock 685
GPU 1 Fan - 75%
GPU 2 Fan - 75%
GPU 3 Fan - 75%
GPU 1 Temp - 57
GPU 3 Temp - 63
GPU 2 Temp - 59
Running the most up to date catalyst v13.4 with best results so far

My average is between 2000-2100MH/s total, pretty impressed so far.

[crazyates]

Stock core voltage (seems to crash when voltage is lowered for me)
Core Clock 1150

Well duh! Cards can't really be undervolted AND massively overclocked at the same time.

Other than that, good for you? Those seem to be pretty reasonable results, maybe with the exception of the nice low temps. What's your ambient temps?

[dtmcnamara]

ambient temps are between 60-65 F

[gisfrancisco]

what it set you back 1800?

[tonightwefeast]

What OS are you running??

[Waramp22]

Been running now for about 30 days with absolutely no down time. Settings are as follows:

Diamond HD7970 (7970PE53G)
Stock core voltage (seems to crash when voltage is lowered for me)
Core Clock 1150
Mem Clock 685

Those are some core and memory settings. Can you post a screenshot of your config file + miner + GPU-Z?

[scouzi]

I got only 610-630 on my 7970

I have 2 running both at around 705. One is a Gigabyte and the other is a Sapphire Dual-X. They both have to be tuned differently. One runs at 80 C and the other at 68C. Oddly enough with auto-fan, one needs a targe temp at 68C to keep the GPU at near 100% load while the other needs a target temp at 82C to keep a load of 100% GPU. It took me a while to figure that one out!.

Running at 340 clock speed and 1200 GPU speed on both.

[drlukacs]

Been running now for about 30 days with absolutely no down time. Settings are as follows:

Diamond HD7970 (7970PE53G)
Stock core voltage (seems to crash when voltage is lowered for me)
Core Clock 1150
Mem Clock 685
GPU 1 Fan - 75%
GPU 2 Fan - 75%
GPU 3 Fan - 75%
GPU 1 Temp - 57
GPU 3 Temp - 63
GPU 2 Temp - 59
Running the most up to date catalyst v13.4 with best results so far

My average is between 2000-2100MH/s total, pretty impressed so far.

This is very impressive. Were you able to lower the memory clock so much in Linux, or is it working only in Windows (MSI AB)?