What is my bottleneck?

[WillHuffman]

Hello fellow computer enthusiasts. I have a problem with my computer lagging at random times. I think something in my computer is holding me up, but I haven't a clue what. Here is what I am running:

MoBo: GIGABYTE GA-P67A-UD4-B3 LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

Power: CORSAIR Enthusiast Series TX750 V2 750W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High

Processor: Intel Core i5-2500 Sandy Bridge Quad-Core 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Desktop Processor Intel HD Graphics 2000

Memory 1: G.SKILL 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model F3-10600CL9D-4GBPK

Memory 2: G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-14900CL8D-8GBXM

Video Card: Nvidia GeForce GTX 760

HDD: 500 gigabyte and a 120gb solid state. Always use windows 7. I forgot to add those tidbits.

I always use a USB wifi connector, motherboards stopped working and I know that I have to replace it. Any way, advice on parts is welcome!

 

[Alpha3031]

I'd just get rid of Memory 1, even if that's not the problem, first.

 

[TopLuca]

Here you go , just stick with the 2x4 gb ram and you'll see improvements

 

[WillHuffman]

I'd just get rid of Memory 1, even if that's not the problem, first.

Should I buy another set of Mem 2? something I have been considering

 

[d1rtydeedz]

8gb is enough for just about any game you could throw at it. Having different sets of RAM generally causes conflicts. If you want to fill all four slots, have the same RAM in each slot. However, having less sticks which are larger is more efficient than more sticks to match the same total RAM. Basically, one 8gb RAM stick will be better than two 4GB RAM sticks. Got it?

 

[bignastyid]

" one 8gb RAM stick will be better than two 4GB RAM sticks." not if you take dual channel mode into account. However using 4 sticks of ram in many motherboards will put extra load n the MC and can cause instability. I do agree mixing ram especially with different speeds is a bad idea and 8gb is enough for gaming.