I had a power surge about 3 weeks ago - lost a drive, now making ticking noises. I had another two drive that seem to work sporadically now. So, I thought it might have been my power supply. Bought a tester and found out that all seems well. Next, I bought a new hard drive and found that it was also acting up - making noises like whirring up and down (like the other drives I thought were dead). So I am starting to wonder if it is my mobo - but how can I test this out? I am using a dual boot - Win XP and Win 7 - both drives work and don't work. Up and down. Right now my Win7 is working, but XP is not. Maybe both drives are on their last legs or maybe it is just the MOBO causing the issues - but now with a new drive, it is making the same noises, so that tells me that it is something other than the drives -- I don't want to end up buying a new MOBO and find out it is something else again! Any suggestions? Also, all my info is backed, so I am ok with playing at this point, but I don't have another computer here to test this out on. IS there a MOBO software test for XP?