I have 4 HDD pins on my mobo.
Currently i have 1 HDD installed. Maxtor 160 GB.
Few months back i got a new hdd 250 GB. When I connected that hdd, my comp slowed down and started giving me problems like hanging in the middle of transfer or even while playing music.
1st thot that came in my mind was, there is some problem with my HDD. so i sent it back to Seagate for replacement. Once it came back and when i connected it again on Pin #2, I realised that it has something to do with my HDD pins on mobo. So this time i Connected it on pin #3. For few days it was working fine, then I disconnected it to check out my new 3.5" casing. When i connected it back, same problem occured.