Anybody experienced something similar?

Yup Sapphire Dual X too.

Does my temp seems normal? Just wondering if I did something wrong..

Sapphire. The model is Dual X. Purchased 14th of january!

I was mining for one week stable at 72-76 celcius, 720 khash per card then one of the card dropped to 300 khash in hash rate. Fan slowed down, and temp crashed too. I decided to reboot.. Same thing.. then suddenly zero in hash rate.

Bamt now doesn't recognize it after a couple of reboots.

Same slot, same powered riser with another 280x and it work wells. So card seems in fault.

Did I fried a card?

If so, what do I say to the retailer in order to get an RMA?

Thanks for the follow up NameTaken! What bios do you use?

Spinx, I am very interested to know if you changed anything beside going with these parameters. And if you mine in Win7 or Linux.

Great news NameTaken. I think I won't throw them away! What makes you made the biggest jump in khash/sec, the new bios or optimized script?

Would you mind tell me what is your bios and your miner settings?

Thanks for clarifying how to do it. I still don't get why tough... 

Hi all. I've Tried almost every settings in SMOS Linux, can't get past 600 khash/sec average unless I enter intensity over 13, which leaves me with a lot of HW errors.

I tried with tc 8192, 8191, 22272, no change.

Does it haves something to do with the bios?

Why does power connection from riser have to be all on the same PSU?

Please guys post your software / OS you use for mining along with the parameters.

I just want to make sure since I don't see the logic there.. the risers have to be connected to same PSU than the mobo, but it can be different PSU that the one the GPU are connected? Is it absolutely necessary? What have to be taken care of if you can't?

What software are you using? How much khash/sec?

Anyone mine with a mac?

I tried to mine with cgminer CPU only all I got are rejected blocks.

Why does the risers molex have to be on the same PSU than the mainboard?

Are you counting only the GPU's? I bet you are, but I only want to make sure.

Many thanks hyperionx. My risers have a molex power cable.

But what do you mean by 'cutting the powered risers'? Can you explain a bit more on that?

Tried. Does not work. Tries to connect but always a disconnect error at the end.

Thanks Lunas. So you think the Sapphire card would draw less than 300w each ?

Desactivate and active the lan. You have the same board ?

Do I have to do this each boot?

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