I have just built a few months ago a new PC. The specs are :

CPU : AMD Phenom 2 x4 965 125 watt (but for some reason it's getting 140watt) * overclocked to 3.8 ghz and NB 2200 ghz
GPU : XFX Radeon 5850
Powersupply : XFX 650 Watt
Motherboard : GIGABYTE GA-790FXTA-UD5
Memory : Gskill F3-12800CL9D-4GBNQ dual channel DDR3

Now the ram has been a big pain in my butt. Sometimes it passes memtest86, sometimes not... i have tweaked the timings and voltage and im having the wait and see approach. Now i would like to order 4 gig of memory more but i don't wanna buy the same kind since im having so much trouble with it and if the new momry works perfectly then I would RMA the Gskill memory.

Would this memory work if ever i put all 8 gigs of ram together ?

OCZ AMD Black Edition 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model OCZ3BE1600C8LV4GK

http://www.newegg.ca/Product/Product.aspx?Item=N82E16820227496&Tpk=amd%20ocz