I recently added a HDD to my system as a slave drive. Ever since, my machine has started to freeze up on me. I run solely music and videos off this new HDD and it will freeze up leaving me with an insanely high pitched squeal. Sitting idle over night and it will freeze up. This started to get worse even after I reformatted and reinstalled win xp pro on my main HDD. Nothing I seem to do seems to keep my machine from not freezing. My cpu and system temp's are normal. I've also tried to use a Promise IDE contoller card and access the drive through that way and still i get lock ups. What makes the whole thing really strange is that it sometimes locks up when I'm just browsing the net w/ a flash website w/ sound and other times it locks up when I play a new game like NHL 2004 (all video card drivers are up to date). Sometimes after having the machine lock up on me, I'll notice that the machine reports only seeing less RAM than I have like 256 instead of 512 or 384 instead of 512....and then other times, the RAM shows up. I don' t have my machine o/c'd or anything. Even when taking out that second drive, I notice that the machine locks up. Updating xp w/ hotfixes and other security updates and the machine would lock up...
any suggestions or further inquiries on anything? please get back to me asap
specs:
MSI K7T266 Pro2 mobo
Antec Smart Blue 350W PSU
AMD ATHLON XP 1700+ (running at 1.10ghz

)
512 PC2100 DDR (Crucial and Samsung)
Nvidia GeForce 2 MX 400
Plextor CD-R PX-W2410A
Samsung DVD-ROM SD-616F
IBM IC35L060 60 GB HDD (master)
WD WDJB1200 120GB HDD (slave)