Used 6990 under performing by 50% | Bitcointalksearch.org

Jazkal

sr. member

Activity: 319

Merit: 250

Quote from: stick_theman on July 29, 2011, 05:34:13 AM

I just purchased a pair of 6990 (2x) video cards from the same owner on Ebay and installed them to a new rig. By comparing the total number of shares submitted, these two "used" 6990s submitted at 50% less shares of what the two new 6990s.

Both rigs have the same setting...

I'm just wondering what is the deal... I didn't screw in the video cards properly or what? Or did previous owner properly fked up both cards?

Did you figure this out?

Mousepotato

hero member

Activity: 896

Merit: 1000

Seal Cub Clubbing Club

What kind of PSU do you have?

Jazkal

sr. member

Activity: 319

Merit: 250

Are you running both 6990 in one box?

If yes, you have four miners going? What are their settings?

neo1999

newbie

Activity: 15

Merit: 0

More info plz! Temperatures of each core, clock and mem settings, what miners and overclocking tools, if any you are using would be helpful. If you can get a screenshot of the miners running, with GPU-Z showing that would be helpful.

NetTecture

full member

Activity: 140

Merit: 100

Is that a card or a GPU problem? As in - are both GPU slower or just one? DId you properly tune them`?

stick_theman

sr. member

Activity: 372

Merit: 250

Yep, one instance for each gpu. Just want to make sure that I screwed the card in properly... since it's running so it looks like a hardware default problem.

Olly_K

sr. member

Activity: 361

Merit: 250

I take it you're running 2 instances on both cards ?

they're dual gpu so you'll need 1 instance for each gpu

stick_theman

sr. member

Activity: 372

Merit: 250

I just purchased a pair of 6990 (2x) video cards from the same owner on Ebay and installed them to a new rig. By comparing the total number of shares submitted, these two "used" 6990s submitted at 50% less shares of what the two new 6990s.

Both rigs have the same setting...

I'm just wondering what is the deal... I didn't screw in the video cards properly or what? Or did previous owner properly fked up both cards?

Topic: Used 6990 under performing by 50% (Read 1547 times)