I've had extremely slow performance for a while now and haven't been able to solve the problem. Now I've done some research and have outlined a possible explanation. I just want your opinions.
My problem: after an extremely long gaming session (my computer had been on for about 9 hours) my computer's performance suddenly collapsed. The computer is sluggish when the hard disk is active. Opening applications takes a very long time and the cursor starts stuttering. This does not happen when watching, for example DVDs or listening music from a CD, indicating that the hard disk is at fault.
I ran a program called Everest and got these results:
Both linear and buffered hard disk read gave me a read speed of 3MB/s and a CPU load of 60%. Isn't the CPU value a little high for a simple hard disk read? This would indicate a bottleneck in the data transfer to the computer.
My disk is only half full (100Gb used, 180Gb capacity) and I defraged it only 7 days ago (was badly fragmented). I ran Seagate's S.M.A.R.T. -reading program and it told me that no thresholds were exceeded. Another program called HDD Health told me that a threshold had been exceeded: my disk has been overheating. The maximum operating temperature of my disk is 55 degrees celsius. My disk heated up during that long gaming session to 68 degrees celsius.
My conclusion: I believe that the HDD controller possibly got fried during the overheat and that the DMA-mode is inoperative. I just wonder if getting a new hard disk will solve the problem. Opinions?