I'd RMA the cards. The only setup of my three computers which ran duel 290x without issues had a gold rated 1000 watt psu. My 700 and 850 ( both gold rated ) could not handle the two. Thats why I am ditching one of my 290x and going for two 280x. Less hassle more hash.
yeah you need to mine at 20 intensity with 290x. Another pitfall because it makes your computer unusable. 280x hits 750 at 13 intensity so its still snappy.
I just moved my single 290x up to my main computer with the 1000w PS.
Now getting 985 Kh
core 1020 mem 1500 TC 25700
It really seems like the bottom line is getting a top notch power supply. It also seems like the reference 290x perform better than the models with better cooling i.e. Gigabyte Windforce and Sapphire Tri X.
I wonder what would happen if I flashed the bios of the Sapphire Tri X 290x to reference. It worked with my 7970 Ghz edition and I gained 150 kh. Only recommend doing this if you have duel bios though.
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Mar 31, 2018 6:33:51 GMT