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February 22, 2014, 08:39:02 AM |
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Was hoping to get some advice on this........just installed a second and identical Sapphire r9 290x in my main PC. Had first card running for a couple weeks at around 920 kh/s pretty stable and doable temps. Installed second card and adjusted my config file as shown below. After realizing I had to delete the bin file and reboot my PC, I had both cards running for about 10 minutes with the below config, both hashing at 920 kh/s. First card was running at around 84 where before it ran around 75 while running solo. 10 minutes in and all hashing at good speeds, my PC restarts and then restarted again while trying to reboot. Shut my pc power off for 15 minutes and all booted up fine. Am thinking I got the card too hot or perhaps over pulled from the PSU but thought I would check with some more experienced miners. Also after rebooting and without starting CGMiner again, I am getting the colored square blocks showing on my screen such as you see when you are running CGminer at full bore and trying to use the pc at same time. Have never seen this happen while not running CGminer?
I am pretty sure I have a 1000 watt PSU but cannot get to the writing without removing. I so have a good amount of hardware in the system though along with the 2 cards which leads me to believe I may need a new PSU to run both of theses cards? Am also thinking I may want to upgrade the cooling fans on my cards from the stock to help with cooling and was wondering if anybody could suggest anything on this.
Here is my current config I setup for both cards..........
setx GPU_MAX_ALLOC_PERCENT 100 setx GPU_USE_SYNC_OBJECTS 1 cgminer.exe -I 20,20 --worksize 256,256 --thread-concurrency 33792,33792 --gpu-engine 1040,1040 --gpu-memclock 1500,1500 --gpu-powertune 20,20
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