Quote from: adaseb on May 13, 2019, 07:12:17 AM

Quote from: sobololeg1978@gmail.com on May 10, 2019, 07:30:05 AM

Hello ! I have a mine on the old r9 290 and r9 290x cards, can you tell me if you can apply it - strap to them?

I have a few of these GPUs also and you pretty much shouldn't mine ETH with them due to a DAG thrashing bug which is causing slowdowns.

Basically 1.5 years ago, I was able to mine ETH at 30MH/s with the R9 290 reference GPU however all of a sudden over a certain DAG it started to slowdown, it kept slowing down with every new DAG until eventually I stopped using them all together. The speed was slow and the power consumption was the same.

It has the same issue as the R9 280X which caused the GPUs to go from 28MH/s (DAG #0) to like 7MH/s with the latest DAG and pretty much rendered the GPUs useless for mining.

I have 2 R9 290's up right now, doing 28-29MH/s on SMOS mining etc... with phoenix miner, as I wait for claymore's current version to be available for SMOS, but the older version isn't that far behind phoenix. They do NOT run that fast on windows, excluding with callisto and expanse, which last I checked also are still mineable on 2GB cards. My HD 7850 was getting 17.7MH/s on callisto a few months ago on linux and 12-14 on windows. EDIT: to be clear, this is AMDGPU-PRO drivers on smos/linux and not fglrx. fglrx behaves the same as windows with reduced hashrate. edit2: You can't do undervolting/overclocking/etc. via the driver on these old cards. You have to do vbios edits, 290's have Hawaii bios editor to make that easy. 78x0/270'/370s and 79x0/280's will have VBE7. it seems like there may be a cap in place in the driver, probably in the Quirks portion of the driver. so you can change core and voltage but not memory via the vbios edits.