Ok i have a maxtor 100 gb hd, msi p965 platinum mobo, e6400 cpu, 7600gt, 1 gig of crosair xms2 ddr2 800, sony dru-530a drive and a 600 watt thermaltake power supply. But my computer seems to be runnig slow at certain times. Times such as loading a new task, mostly loading instalations but loading a new task sometimes makes my hd click and my computer freeze. My cpu is running at 37 deg c and my gpu is running at its normal temp. I ran memtest to see if it was memory and it passed with flying colors, also i installed all new drivers for all of my hardware. I've also checked to see if the power supply is giving the right amt of power and it is. Also when it lags the cpu load shoots to 100 after it comes out of a frozen state for about 5 seconds and ive also noticed the ram is usually running at 32 percent on idle. Sorry if my explanations are bad but i'm very tired because i've been working on this for a day straight w/ no sleep whatesoever