Problem with my RAM...I think? Help!

[www.vukasin]

Before not to long I had this pc:
motherboard:m5a78l-m le
GPU:GTX 750 ti
CPU:FX 8300
RAM:Kingston 4 GB DDR3 1333MHz x1
Kingston 4 GB DDR3 hyperX 1866MHz x1
PSU:500w
HDD:1TB SATA3 7200rpm
-Games like dark souls ran with fps beetwen 45-60 with medium settings and games like CS GO constant over 100 fps
NOW i only added 1x Kingston 4GB DDR3 1866MHz HyperX for dual channel.
Installed it and tested it...it works.
But Dark souls has BIG fps drops that never happened before and CS GO had fps drop to 30 FPS on dust 2 when someone threw a smoke bomb! My only guess is that this has something to do with my new ram because since the day I put it in I had this problem. Please help me if you can.

 

[scout_03]

did you test the new ram stick alone in system .

 

[www.vukasin]

did you test the new ram stick alone in system .

Yes.I did the memory test with the memory diagnostic tool and it says it works with no issues.

 

[scout_03]

the one you have is similar to this dual channel one https://www.kingston.com/datasheets/khx1600c9d3k2_4gx.pdf but your is a singlr channel so use cpu-z spd tab to get jedec and compare with memory tab for both of those you could post a picture of this here .

 

[www.vukasin]

the one you have is similar to this dual channel one https://www.kingston.com/datasheets/khx1600c9d3k2_4gx.pdf but your is a singlr channel so use cpu-z spd tab to get jedec and compare with memory tab for both of those you could post a picture of this here .

Thanks for helping me pal! It was dust in my CPU all along, huh weird!

 

[scout_03]

do full dusting at least one a month specially if you have pets is good on all fans in system if no pets once every 3 month should be good .