I have 3 sticks of RAM and am having random reboot issues. I have been searching the forums and cannot tell if there is a problem with my RAM or not. This is what I have: 2 Geil DDR400 PC3200 1GB at 3-8-4-4 1 Geil DDR400 PC3200 512MB at 2.5-6-3-3 The rebooting issue began when I only had the 512MB stick. I added the two 1GB sticks and it continued. I removed the 512MB stick and it continued. My plan right now is to put in one 1GB stick at a time and see what happens. I think it will still continue. I am trying to strip my computer down to the minimum, and am removing the RAM, my second DVD drive and my floppy drive. ...But I have to reload Windows because things have become so fubar'd over the ensuing months of this problem and I don't have time to really get into what software could possibly be causing what problem. The real question I have is this: should timing make any difference? I was very careful to get almost the exact same RAM, but I could not find anything with the same timing. I seem to remember that the slower timing RAM should be in the first slot, but now I can't find anything that mentions that specifically. Anyways, this is starting to drive me crazy. I don't really have the money for a new computer at the moment, so I have to try and make what I have work. Thanks for any answer in advance!