I built this computer like 4 or 5 years ago and recently it's been struggling in games, such as GW2 and Tera. In Tera I get 14 fps max settings and 25 with min settings and resolution (and those are high values, in groups I dip down to about 5-10 on both settings.) I'm running:
-AMD Phenom II x4 965 3.4ghz
-Nvidia GTX 260
-Windows XPx64 bit
-8gb Corsair xms3 ddr3
My GPU load sits at about 30% and CPU usage is between 40-50%. Drivers are all up to date. I'm not sure if it's the operating system that's slowing me down or the hardware. Appreciate any help, thanks.
I tried overclocking once, but it didn't work. I don't know much about overclocking tbh, but I'll give it another try. Thanks for your help. I think I can only afford one upgrade at the moment, so I can either go with Windows 7 or the GPU/heatsink first.
OEM copies of windows are perfectly fine. They can only be used on one motherboard, however. You can usually call Microsoft and have them give you a new key if you ever need to change motherboards though.