I seem to be able to figure it out by plugging my monitor to the 7970. If i plug the monitor to R9 270, the GPU 0 (HD 7970) shows 1.5 Mhash while the GPU 1 (R9 270) shows 800 Khash. But if I plug the monitor to the 7970 then unplug it then plug it to the R9 270 I get 1.5 Mhash on GPU 0 (HD 7970) and 2.7 Mhash on GPU 1 (R9 270). Doesn't a HD 7970 supposed to have a higher hashrate than a R9 270 ?
NB : I want to use the R9 270 to play games when I want to while the 7970 is mining and use both to mine when I don't want to play games.
Topic: low hashrate when mining x11 ? (Read 1085 times)
Might just need to fiddle around with afterburner abit.
on the Afterburner settings menu make sure to tick/select:
Could also try uninstalling/deleting the MSI Afterburner App and folder.
Another thing worth trying is enabling/disabling Overdrive in the CCC.
on the Afterburner settings menu make sure to tick/select:
- Force Constant Voltage
- Extend official overclocking limits
- Disable ULPS
- Unofficial overclocking mode "without PowerPlay support" (i think this is the most important one)
Could also try uninstalling/deleting the MSI Afterburner App and folder.
Another thing worth trying is enabling/disabling Overdrive in the CCC.
wait a sec, which one is gpu 0 and which one is gpu 1 ? My 7970 is plugged to the PCIe slot above the R9 270, but my monitor is plugged to the R9 270
still no luck. my 7970 is still at 700 Khash
still didn't fix it. and if I change the driver to 14.6 beta i get my hashrate back but all HW error
puts the driver 13:12
still didn't fix it. and if I change the driver to 14.6 beta i get my hashrate back but all HW error
download sgminer again and throw away the other what you're using
I've tried restarting my machine and it didn't work
playing outside and low sgminer him again and restarts the machine
I have a R9 270 and a HD 7970 on my PC and I use it to mine. Yesterday, it mine just fine with around 2 Mhash from the R9 270 and 3.3 Mhash from the 7970. But when i tried to mine now the r9 270 only produce around 1.2 Mhash and the 7970 around 700 Khash. My settings are --thread-concurrency 8192 -I 13 --lookup-gap 2 --worksize 256 -g 2 --gpu-engine 1160 --gpu-memclock 1450 --no-submit-stale and I'm using catalyst 14.4. But even with the gpu engine and the gpu memclock the sgminer only report 300 Core and 150 memclock from both the gpu. And I can't seem to change the clock speed reported by sgminer even with amd overdrive or msi afterburner. Any help would be appreciated.
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