My current system is as follows:
Amd x2 250
dont know psu
amd 3450 512mb
Its an old pc I know, but about a month ago my pc started experiencing sudden lag attacks where the cpu usage would jump to 100% usage, and the mouse would skip around the screen, also the sound got messed up and is crackly during the lag and makes the sound go in slow mo. Every once in a while the sound will be okay. While im in a game(such as League of Legends) I'll be playing around 50 fps when suddenly itll drop to around 6 fps for about 30 seconds this repeats every couple minutes, even when I'm not gaming, sometimes happens at the login screen when I turn on the computer. I know my computer is old, but I'm wondering why it was functioning just fine a month ago. Any ideas as to what the problem is? Any responses are appreciated.