I brought a new video card but my games still skips

kenjr125

Honorable
Apr 2, 2012
1
0
10,510
Hello,
OK I am new to the PC gaming world. I built my first rig. I must say that I am proud of my self. But anywhoo my games still skips/lags/etc. I built my rig last November with a 9800gt video card then I upgraded to a Evga gtx 560 Ti. I thought that would fix it but it didnt. So my games still skips and lags. I am playing games like saints row 2 and it lags. So please help!!!! And my music skips too. And I brought a new sound card to fix that but didnt help.
Also my spec are:

8gb ram
600HDD
GTX560Ti (new)
Biostar A870U3 Motherboard
AMD Phenom(tm) II X4 970 Processor
Raidmax hybrid 730w PSU