https://i.imgur.com/fWvoEo2.png
gonna leave it there for now, i changed the intensity from 13 to 12 and that seemed to correct it. im using 8192 tc on all cards.
Topic: Identical cards, Identical settings, different hashrate (Read 1877 times)
Try 24576 6144 for thread concurrency. Or 16384 or slightly below. (Sorry i misread that you had problems with your 7970 not 7850 ^^)
Also try without shaders, the miner should recognize the optimal number by itself. And I'd set intensity to 18-20 when you're not using the desktop. At least set it to this on the secondary card not used for the desktop.
And i'd try guiminer's standard settings for the gpu, they should give good results.
Maybe some clues for you.
LiEPWK44b8Q7rYE5ztzt7vF1HPHSC2HJGt
Quote
7xxx series cards
Use reaper or cgminer versions 2.11.3 and up (see update below). Set thread_concurrency to somewhere slightly below 64 * bus_width_of_card_in_bits. So, for a 7950, that would be 64 * 384 = 24576; ideal values are 21712 or 24000. Find your bus width here: http://en.wikipedia.org/wiki/Southern_Islands_(GPU_family)
To find the optimum thread_concurrency for your card, you will need to search above and below this estimate ideal value and see what is fastest.
https://bitcointalksearch.org/topic/consolidated-litecoin-mining-guide-for-5xxx-6xxx-and-7xxx-gpus-117221Use reaper or cgminer versions 2.11.3 and up (see update below). Set thread_concurrency to somewhere slightly below 64 * bus_width_of_card_in_bits. So, for a 7950, that would be 64 * 384 = 24576; ideal values are 21712 or 24000. Find your bus width here: http://en.wikipedia.org/wiki/Southern_Islands_(GPU_family)
To find the optimum thread_concurrency for your card, you will need to search above and below this estimate ideal value and see what is fastest.
Also try without shaders, the miner should recognize the optimal number by itself. And I'd set intensity to 18-20 when you're not using the desktop. At least set it to this on the secondary card not used for the desktop.
And i'd try guiminer's standard settings for the gpu, they should give good results.
Maybe some clues for you.
LiEPWK44b8Q7rYE5ztzt7vF1HPHSC2HJGt
I changed back to stratum and the problem is back, I reverted to getwork and the problem persists.
https://i.imgur.com/5JdLCa6.png
Also, anyone have any thoughts on the memory usage on 7970 #2 ?
https://i.imgur.com/GtlwCgw.png
https://i.imgur.com/5JdLCa6.png
Also, anyone have any thoughts on the memory usage on 7970 #2 ?
https://i.imgur.com/GtlwCgw.png
they should get the same or very close to the same hashrate when they are on the same clocks, and they now do
lots of stales - not using stratum at the moment
https://i.imgur.com/RGrPg29.png
lots of stales - not using stratum at the moment
https://i.imgur.com/RGrPg29.png
No two cards are identical. All cards have their own optimizations and those do change over time as well.
12.8 causes cgminer to crash instantly, thanks for the reply
after messing with it for a while i finally got it working, i cant really say what fixed it but did a lot of driver cleaning and afterburner uninstalling/reinstalling.
working with 13.3 b3 drivers and the latest stable afterburner. I can't adjust the 7850s voltage with afterburner though.
after messing with it for a while i finally got it working, i cant really say what fixed it but did a lot of driver cleaning and afterburner uninstalling/reinstalling.
working with 13.3 b3 drivers and the latest stable afterburner. I can't adjust the 7850s voltage with afterburner though.
Change intensity down to 11.
Downgrade from catalyst 13.1 to 12.8.
LYogfVW253cuHmjE5Qm6ryXQfTZFdHNjUX
Downgrade from catalyst 13.1 to 12.8.
LYogfVW253cuHmjE5Qm6ryXQfTZFdHNjUX
https://i.imgur.com/z1upDLb.png
The 7850s are both the same card @ 1125/1525
using these settings
https://i.imgur.com/JDMV7Bm.png
5LTC to anyone that gives me information that corrects the problem!
The 7850s are both the same card @ 1125/1525
using these settings
https://i.imgur.com/JDMV7Bm.png
5LTC to anyone that gives me information that corrects the problem!
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