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Sapphire 6670 without openCL?

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rogerdv

rogerdv

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I got a new Sapphire Radeon HD 6670 card yesterday for bitcoin mining, to replace a geforce 440, but I found a really weird problem: under Windows, GPU-Z reports that the card is not OpenCL capable, and all the miners confirm that there is no device available. Under Linux, the miners work, but the produce a lot of hardware errors without any result. Any idea about whats happening here? Im using catalyst 13.4 in both cases.
 
Installed latest AMD APP SDK? Should come with the full driver package.

Have you looked to see if that card is worth mining with including electricity costs?
 
Well, I think that the SDK wasnt included in the driver I downloaded, I will try again. The card produces a mere 97Mhash, but considering that electricity is free and Im just saving to buy an android phone and a digital camera, it is an acceptable choice.
 
Well, I have downloaded APP, but the readme states very clearly that from version 2.8, it only supports CPU. The GPU support is now included in video drivers. Is there any chance that my card has some physical problem that prevents using OpenCL?
 
Got another card today for testing, a Sapphire 5450, same problem under Linux and Windows. Only test left to do is trying the card in another PC.
 
rogerdv said:
Well, I have downloaded APP, but the readme states very clearly that from version 2.8, it only supports CPU. The GPU support is now included in video drivers. Is there any chance that my card has some physical problem that prevents using OpenCL?
Click to expand...

Install this and uncheck everything but the CPU runtime.Report back.
 
A lot of AMD Graphics cards manufaturers don't implement OpenCL on their cards. To be sure a card has Opencl support the video card box should have The Amd App Acceleration (this means Opencl support) logo, or ask the manufacturer to be sure. Only the newer cards from amd : the R5, R7, R9 200 series come consistently with AMD App Acceleration support implemented by the manufacturers. AMD App Acceleration may not necessarily mean in all the cases that the card can use OpenCL, so it is best to explicitly ask the manufacturer if the card has Opencl support.
 
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