Ok got a friend that has a hp a220n series computer. Model number DK218A. The hard drive crashed and I need to know will any IDE type hard drive work in it? The original is 5400 rpm and I dont know what buffer speed is, since i cant seam to find anymore info about it. http://www.newegg.com/app/ViewProductDesc.asp?description=22-144-122&depa=1 I think this one at new egg should work, will it? Thanks for any help!