I have a Dell Inspiron 6400. I changed the memory a couple of years ago with no problems, but recently bought a new HDD and now I get random lockups. Serious lockups. Like, where even the mouse freezes. These last for anywhere from ten to thirty seconds, and I've noticed the HDD light is constantly on the whole time (not flickering, just constantly on). As soon as it all comes back, the HDD light goes back to a more regular HDD-access flickering.
The HDD I bought is a 300GB SATA3 (more accurately a Western Digital WD3200BPVT 320GB 2.5" Hard Drive SATAII 5400rpm 8MB Cache - OEM Scorpio Blue - the old one was 60GB SATA2 I believe), and I'm concerned the laptop simply isn't compatible with it after all.
I'm running Windows XP Home edition. Is there anything I can do to diagnose the issue?