mrhood (OP)
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December 31, 2013, 03:19:37 AM |
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I have 2 ASUS Radeon HD 7790 Cards. I am getting about 200KH/s on each GPU. Is this good? Is there a way I can get more?
This is my current .bat file setup
cgminer.exe --scrypt -o stratum+tcp://stratum.dogehouse.org:3333 -u XXXX -p XXXX -I 17 -g 2 -w 128 --thread-concurrency 8000
Thanks in advance
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Nullu
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December 31, 2013, 03:21:06 AM |
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That actually sounds quite low for AMD cards.
I'm no expert at CGminer, but you may need to tweak your settings.
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BTC - 14kYyhhWZwSJFHAjNTtyhRVSu157nE92gF
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hvezdasmrti
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December 31, 2013, 03:24:19 AM |
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200 khashes i have with 7770. 220 when i OC it.
Verdict:
BAD.
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In Pump and Dump we trust.
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eon89
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★YoBit.Net★ 350+ Coins Exchange & Dice
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December 31, 2013, 03:28:02 AM |
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I get about 250k from mine.
You need to change some of the settings on the card, I found underclocking it some actually increased mining performance. No idea if good performance I was just playing with settings and that was best for me.
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efx
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December 31, 2013, 03:33:27 AM |
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I have 2 ASUS Radeon HD 7790 Cards. I am getting about 200KH/s on each GPU. Is this good? Is there a way I can get more?
This is my current .bat file setup
cgminer.exe --scrypt -o stratum+tcp://stratum.dogehouse.org:3333 -u XXXX -p XXXX -I 17 -g 2 -w 128 --thread-concurrency 8000
Thanks in advance
What happens with higher intensity? Is one of the GPUs for desktop display that you actively use? Otherwise, higher intensity should result in better hashrates. The workload parameter usually provides the best performance at 256 rather than 128, the latter being better suited to a desktop that is in use since it tends to reduce the gpu latency you get when mining heavily. Thread concurrency is the value that's most likely holding you back, I suggest trying many, many variations, the ideal value seems to vary by bios and not just stream processor count or amount of GPU memory. The two best scores on the hardware guide are both around 270 (260 @882/1750), so you have some more hashrate in there someplace. I see all but one posted their scores with 8000 thread concurrency, so perhaps you will not see any benefit from adjustments to that parameter but I still think it's worth some experimenting.
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efx
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December 31, 2013, 03:35:36 AM |
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I get about 250k from mine.
You need to change some of the settings on the card, I found underclocking it some actually increased mining performance. No idea if good performance I was just playing with settings and that was best for me.
That's something people often notice. The reason it happens is because scrypt likes certain core to ram ratios and the ideal ratio is pretty variable. I often hear .7 core:ram, but that's just a general starting point and the clocks I posted from the hardware guide are in the range of point five core to ram clocks. Looks like this specific arc prefers very highly clocked ram. I bet if you kept your original core clock and OC'ed your memory instead of underclocking the core, your hashrate would be higher.
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mrhood (OP)
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December 31, 2013, 03:52:37 AM |
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I am now getting this error . Failed to reinit GPU Thread I am running a 500W power supply. Could this be the reason? .bat setup cgminer.exe --scrypt -o stratum+tcp://stratum.dogehouse.org:3333 -u XXXX -p XXXX -I 17 -g 2 -w 128 --thread-concurrency 8000
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mattopia
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December 31, 2013, 04:04:11 AM |
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I have 3 7790's (well, 2 running right now, had to pull one to make room for a 280x). They are good little cards. I'm getting a solid 235k, but it took some tweaking. These cards seem to start having massive hardware issues and other weirdness if you go too far with intensity or stray out of the engine/ram ratio they like.
Here are my cgminer settings, maybe give them a try as a baseline and go from there. (I took out my pool configs and other irrelevent stuff, you will need to add the pool stuff back in)
cgminer --scrypt -I17 -w 128 --thread-concurrency 8000 --gpu-engine 880 --gpu-memclock 1500 --temp-target 70 --auto-fan
I'm sure there's room for improvement but that's where I stopped, and I'm happy with the results.
Good luck!
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mrhood (OP)
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December 31, 2013, 04:24:55 AM |
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Wow! thanks! that instantly helped. now I am getting a solid 230K!
Many thanks!
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Trillium
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January 15, 2014, 09:42:31 AM Last edit: January 16, 2014, 02:06:28 PM by Trillium |
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247.5 kh/s 246-247 kH/s
Asus 7790 with CUII cooler (dual fan, with heatpipes)
7790's have dynamically regulated power output, which limits your maximum overclock, probably to protect VRMs. I couldn't get it to ever exceed 79 watts as reported in GPU-Z, not even for a moment. At stock it reports 73-75 watts @ 100 % load. You have to underclock these cards to a specific region & ratio of frequencies to get the most efficient mining (most KH/s for the least watts possible).
Using msi afterburner and GPU-z, cg miner 3.3.0
48 deg C temperature after 30 minutes, in 30 deg C ambient room.
Power limit: +20% (I am not sure this actually does anything, it may be ignored by the card) Core: 830 MHz RAM: 1500 MHz Fan: 100%
"intensity" : "18", revised to 17 because of extremely high rejects (25+%), setting to 17 solves it with nil change to kH/s "vectors" : "1", "worksize" : "128", "kernel" : "scrypt", "lookup-gap" : "2", "thread-concurrency" : "8000", "shaders" : "896",
GPU-Z reports power consumption varying between 54 and 55 watts.
Wattmeter measurements:
Full system while mining (two cards installed): 220 watts Full system while mining (one card installed): 147 watts Full system while idle: 85
So at least the cards are using less than their TDP (85 watts).
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BTC:1AaaAAAAaAAE2L1PXM1x9VDNqvcrfa9He6
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