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Title: AMD Crimson Driver. Post by: E9800 on November 27, 2015, 08:14:02 PM Has anyone made this work with SGMiner?
Title: Re: AMD Crimson Driver. Post by: E9800 on November 28, 2015, 03:10:11 PM Has anyone made this work with SGMiner? Yes, it works just fine. I have been unsuccessful with Quark, NeoScrypt, and Lyre2REv2. They run when I remove the AMD Open CL DLL files but I get HW errors. I assume these DLLs need to be replaced with something else. Any advise? Title: Re: AMD Crimson Driver. Post by: Eliovp on November 28, 2015, 08:56:01 PM Has anyone made this work with SGMiner? Yes, it works just fine. I have been unsuccessful with Quark, NeoScrypt, and Lyre2REv2. They run when I remove the AMD Open CL DLL files but I get HW errors. I assume these DLLs need to be replaced with something else. Any advise? Did a test run today on a windows machine. Was doing 17Mhz on Quark with Catalyst 15.2(ish) drivers (290x OCed). Installed the Crimson drivers. Hashrate dropped to 13-14Mhz. However when running Ethereum, i was running at 28-29Mhz and with the Crimson drivers i hit 30Mhz. no clue why though.. But no issues with hw errors or some sort. Title: Re: AMD Crimson Driver. Post by: MaxDZ8 on November 29, 2015, 09:14:28 AM In the last few days I read more than one user having issues with Crimson... I'm inclined to not upgrade yet.
In the meanwhile if someone can give a go to my miner and tell me if it still works it would be nice to know. Did a test run today on a windows machine. Was doing 17Mhz on Quark with Catalyst 15.2(ish) drivers (290x OCed). Installed the Crimson drivers. Hashrate dropped to 13-14Mhz. New driver comes with a tweaked compiler which implies different instruction scheduling policies. Both differences seems to be in range for this kind of issues (Quark is a bit extreme I admit). In particular, the AMD compiler has historically been way too conservative on computation: this would often result in lower performance when latency-bound. Assuming Ethereum is this kind of problem it would benefit from a tweaked compiler. By contrast compute-bound kernels would get slower.However when running Ethereum, i was running at 28-29Mhz and with the Crimson drivers i hit 30Mhz. no clue why though.. Title: Re: AMD Crimson Driver. Post by: Jukagid on November 29, 2015, 01:07:17 PM Has anyone made this work with SGMiner? Yes, it works just fine. I have been unsuccessful with Quark, NeoScrypt, and Lyre2REv2. They run when I remove the AMD Open CL DLL files but I get HW errors. I assume these DLLs need to be replaced with something else. Any advise? Did a test run today on a windows machine. Was doing 17Mhz on Quark with Catalyst 15.2(ish) drivers (290x OCed). Installed the Crimson drivers. Hashrate dropped to 13-14Mhz. However when running Ethereum, i was running at 28-29Mhz and with the Crimson drivers i hit 30Mhz. no clue why though.. But no issues with hw errors or some sort. Have you tried with 280X? Did you install the whole catalyst package or just the opcl files? Title: Re: AMD Crimson Driver. Post by: Eliovp on November 29, 2015, 08:06:41 PM Has anyone made this work with SGMiner? Yes, it works just fine. I have been unsuccessful with Quark, NeoScrypt, and Lyre2REv2. They run when I remove the AMD Open CL DLL files but I get HW errors. I assume these DLLs need to be replaced with something else. Any advise? Did a test run today on a windows machine. Was doing 17Mhz on Quark with Catalyst 15.2(ish) drivers (290x OCed). Installed the Crimson drivers. Hashrate dropped to 13-14Mhz. However when running Ethereum, i was running at 28-29Mhz and with the Crimson drivers i hit 30Mhz. no clue why though.. But no issues with hw errors or some sort. Have you tried with 280X? Did you install the whole catalyst package or just the opcl files? Fresh windows install. (windows 10), freshly installed drivers. And yes i first installed the complete catalyst package. After that i removed that hard drive, took a new one, reinstalled windows and installed crimson drivers. Again the complete package. No i haven't tried with a 280X, i do however have 1 left, i had more, but not anymore. I'll do a test tomorrow. Title: Re: AMD Crimson Driver. Post by: E9800 on November 29, 2015, 08:43:21 PM Still no luck here. I ended up going back to the previous beta and everything works fine. I am also running Windows 10 but have six 270Xs. I had a heck of a time getting the Crimson Drivers off my rig. I had to use the AMD DDU utility in Safe Mode to completely remove.
If anyone else needs the utility here is a link. http://www.guru3d.com/files-details/display-driver-uninstaller-download.html (http://www.guru3d.com/files-details/display-driver-uninstaller-download.html) The only miner that ended up working for me was the Claymore CryptoNote GPU Miner. Anyway I am waiting for the next release to see if things get resolved. Title: Re: AMD Crimson Driver. Post by: gielbier on November 30, 2015, 04:18:19 PM Just a warning about the Crimson Drivers.
It doesn't work very well with maintaining fan speed /temps. https://twitter.com/AMDRadeon/status/671058196547706880 I wouldn't recommend mining with those drivers without some external fanspeed control. (for example MSI Afterburner) Title: Re: AMD Crimson Driver. Post by: studas on December 04, 2015, 08:52:05 PM I copied the opencl files from the driver to the 15.7 based system, there is no difference in mining hash rate for Ethminer.
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