Hi, I'm having a problem. I have a GA-P35-DS3R mobo. I have 4x1GB sticks of Crucial Ballistix 2G PC2-8500 RAM. I can put 3 of the sticks in, in any order, in any slots, and it will work. As soon as I put a 4th stick, the computer will not post. It powers on, the fan spins for a second, then it shuts off, then powers back on again a few seconds later. Again, it doesn't matter what slots the 3 sticks of RAM are in, so it's not a bad slot, and it doesn't matter what sticks of RAM I use, so none of the RAM is bad, and I have had it tested by the store where I bought it. All of it came back okay, no errors.
So, I'm left thinking it must be a bios setting or something? But I've looked through everywhere I could find and nothing seems wrong. I'd really appreciate it if anyone has suggestions. Thanks.
*edit* I'm running Windows XP x64, not that it matters, as it's not even posting.