PCreviewSPOT has reviewed IBM's 120GXP 40GB harddrive and benchmarked it with a few other HD's :
When I plugged in the drive and installed Win98SE, I immediately noticed was how fast it was. The second thing I noticed right away was how quiet it was. The drive is so quiet that I couldn’t even tell when the drive was seeking and when it was idle. The idle acoustics is also very low. One thing I didn’t really like were the master/slave jumpers on the back of the drive. There are different settings for 15 heads and for 16 heads. The Maxtor just requires you to remove the jumper or short the pins for slave/master respectively. While this is nitpicking, it is worth noting. Another thing that some may be wondering, so far, this drive has been very reliable. I have run it almost 24/7 for about a month and it is still performing fine, without any hitches.