Something is Broken on my Computer

[njohnson4414]

Here are my computer specs:
G1S z5s motherboard
2x R9 280x(only one is in currently)
2x 8gb Patriot Viper 1866
i5-4670k Base Clock and Voltage
EVGA 650 watt gold certified

I was bitcoin mining for 12 hours and my video card reached around 80 degrees celsius. After I finished my computer was much slower. I have tried switching out video cards and running a memtest. I do not know how to interpret my memtest so here it is.

Please tell me if something is wrong and what I should change to fix my computer. Should I reinstall windows ect...

Thanks

 

[Karsten75]

For one thing Memtest reports issues with your RAM. That means new RAM.

 

[NDFighter42]

Karsten75 Can you ellaborate, is the ram bad... and would this cause for the frameratedrops?