Re: [GPUC] GPU Coin | Launch 02MAR14

Hi guys, I hope you can help me out here,

I posted here earlier already but I get this error:

error -4 enqueueing kernel onto command

i have 4 R9 280x and 4gb is that the problem?

in short i believe yes for more than 2 cards mining u need 8 gb ram minimum

I find that a good rule of thumb is 4gb per card, I have rigs with 4 x 290 and they were fail at 8gb so I installed 16 gb and it worked just fine. If I were to make a guess I would imagine you need to match your combined GPU memory in available system memory.

More system ram does nothing for mining. I've seen 6gpu rigs running 2GB (linux). 4GB is all you need for Win.

but issnt this n-scrypt something different that you need more ram? Since I can run 4 cards for normal scrypts but on this n-scrypt I get the error about the kernel and disabling gpu

I can't say for sure that it will fix your problem, but I'm going to be installing 12GB of ram in one of my rigs in about 45 mins. I have 4x6970s with 4GB of ram and I get the same kernel error. On another rig with 8GB of ram and only 2x6970's, no problems.