hi guys 
after the n change i seem to get some hw errors on 2 of my rigs that i did not have before.
290 cards with both elpida and hynix
i do not get them on my workstation with the same type of cards.
i have tried everything i can think of. intensity , -g , thread concurrency ( one of the rigs cant use more then 8192 for some reason..) , -w , nothing seems to affect it.
i have also tried to clock the cards both ways etc.
i get a lot of them when i launch the miner ,then it slowly increases after that ( maybe 5-10 per hour )
anyone have any good tips ?
after the n change i seem to get some hw errors on 2 of my rigs that i did not have before.
290 cards with both elpida and hynix
i do not get them on my workstation with the same type of cards.
i have tried everything i can think of. intensity , -g , thread concurrency ( one of the rigs cant use more then 8192 for some reason..) , -w , nothing seems to affect it.
i have also tried to clock the cards both ways etc.
i get a lot of them when i launch the miner ,then it slowly increases after that ( maybe 5-10 per hour )
anyone have any good tips ?
for some reason intensity on my 270x's means very little until u dip down under 12 or 13. I only lose like 4 kh per card when I drop from 18 to 17 and so on. As for Thread concurrency, this miner's settings are almost half what I us on cgminer (16,000 TC here and 28,000 TC on cgminer). I haven't had to change mine with Nfactor yet... -w should stay the same I believe, and I think 290 uses 512 bus width? The 280 is -w 384 I think, and my 270 is -w 256 (works on 512 but probably counter productive to my card?) My only guess would be to drop thread concurrency in half and see if that helps, then work up from there to where it stops working. Also try using low intensity until you find problem (like 13 or so). I also have glitches sometimes, like when I go to start mining with my main card after gaming on it and mining on 2+3, it stays at a really low hash rate, like 1/10 of my other cards, until I restart my pc. Seems to only happen when I use my GPU for other purposes while mining. So first things first if it is a mining rig that's on constantly, try a restart. Good luck
You must have a nice setup. As for the exchange I dunno, it kind of is a drag to see it listed so cheap, but I know when it gets listed somewhere where people trust sending their BTC, price will jump fast. 
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