AmdFx :
AMD A10-5800K APU
MSI FM2-A75MA-E35 Motherboard
500GB Western Digital Caviar Blue Hard Drive
NZXT Source 220 Case
500W Corsair CX500 Power Supply
64gb Sandisk ssd
8gb ddr3 ram
R7 260x
Well, the bad news is that your motherboard is not exactly built for overclocking. It looks like it has a 4+2 phase design, which isn't bad, but the mosfets lack any heatsinks - so they may be overheating. You can install some aftermarket heatsinks on your mosfets, if you want, but it will cost money. Enzotech provides such solutions.
Also, software overclocking, as opposed to overclocking via the BIOS, can lead to some instabilities.