just to update; I bought a 1GB ram to-day and it installed no bother bowever the shop sold me an internal hard drive with a "Sata" connection instead of serial so I shall probably have to take the whole thing back to them and get them to sort it out. I had taken the ilustration of the hard drive with me and showed them that as well as saying that I had bought the power unit from them with the ribbon connections. They tell me I can get an adaptor but there does not seem to be anywhere in the motherboard to connect to. I have looked at Maplin's site but do not see a serial to sata adaptor. Will keep group undated.