Won't get any shares. R9 290. If you solve my problem you get 0.8 LTC

[Treggar]

I'm not so sure it's the RAM.

I run 3 R9 290's on BAMT which is a 32 bit operating system, so even though I have 12GB of RAM in the system because it's a left-over board from an older computer of mine, only 2GB shows up as usable in the OS.  I have no trouble at all with hashrates.  I use the settings I suggested above...

[sighle]

The RAM was the solution to(one of) my problems. But I am running in a Windows environment, not Linux.

[nioccoin]

I'm not so sure it's the RAM.

I run 3 R9 290's on BAMT which is a 32 bit operating system, so even though I have 12GB of RAM in the system because it's a left-over board from an older computer of mine, only 2GB shows up as usable in the OS.  I have no trouble at all with hashrates.  I use the settings I suggested above...

I'm having tons of trouble with these nonce HW errors (on win 7).  I'm putting a post together about them to seek help.  I've got 32GB stuffed in a box, reduced from 5 cards to 1 card, and still getting loads of errors.

My question for you - based on your high outputs on your cards, is what is your setup here?
Could you provide specifics on what Motherboard, cpu, PSU, ram brand you're using?  Also, what version of the radeon drivers, and are you using the amd app sdk or not?  I know after 13.6/4 it was included in the driver package, or at least that's what I've read.  Also, what cgminer version do you use?  What bamt version?  Are you using powered risers?  I guess your mobo can't be too old if it has at least 3 pcie's.

[mawa73]

Hi,

its your main problem solved ?

My Ideas,

280 and 290 cards in one system have one big problem - the gpu threads ( variable -g 1 or -g 2 )

- for the 290er card you need to set it to -g 1 and for the 280er card need to set it to -g 2

I have 3 rigs a two card, two with 2 x 290 and one in mixed mode ( 1 x 290 + 1 x 280 ), all cards Sapphire branded AMD Cards.
To solve the problem with the gpu threads i use Multiminer and set for each card a coin configuration. In Multiminer you can set for each coin different configs and gpu threads, thats with cgminer not possible!

Here are my 280er settings:

-I 13 -g 2 -w 256 --thread-concurrency 8192 --gpu-engine 1070 --gpu-memclock 1500 --gpu-fan 85 --shaders 256

725 kH/s at 24/7


and here are my 290er settings:

-g 1 -w 256 --lookup-gap 2 --thread-concurrency 28646 -I 20 --gpu-fan 85 --gpu-engine 1000 --gpu-memclock 1500 --gpu-powertune 20

875 kH/s at 24/7


I hope you can use my infos.

Multiminer you can find here:

https://github.com/nwoolls/MultiMiner

https://bitcointalk.org/index.php?topic=248173.0

Regards
Matthias