I'd need help please in setting up my Nvidia geforce GT 640 revision a2 - 1024 memory - clock - core 950mhz mem 891mhz. For mining mmc at mmcpool.com. I will in near future get a better card once I get this working.  GPU MMC. I'm not sure which program to use. cgminer, or yam, or ? My CPU is ACPI x 64 core i5 4430 intel. Computer DDR3 with 16gb memory.  HP ENVY 700-074. Power supply 460w. I've been cpu mining at 1.3hm with 3 threads. 4 threads doesn't work as well as per viewing on my performance monitor. With this CPU i think i should get more like 3hm. I'm using mmcminer. Now i'm trying to setup GPU mining. thanks for any help.

any body have the codes for mmc. i need some help. for GPU mining i have windows 8, 3gig i5, 16gig memory , and a nedivia gt 640 card. i cant even get wallet address on MMCPool.com . ty  ps where can i check my chip temp plz new computer.  and my  bat files are like this
(this is miner)

set GPU_MAX_ALLOC_PERCENT=100
minerd-mmc.exe MPsBNNuJvTCoKmf9gZmrYuNd2bShPBJLUM

(this is minerd help)

minerd-mmc.exe
pause