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Dell XPS 600 reboot loop with 4GB (2x2GB) memory
Had 1x 2GB Kingston 667MHz stick, and decided to buy another one. I should point out that both are fully working and were bought brand new from Amazon. I was forced to reinstall windows (Windows 7 Professional 64-bit) for other reasons, and the installer would get to "Starting Windows" then would restart. Did this as many times as I booted it up. After messing around I took out one stick (took out the old one and just had the new one in) and the installer worked perfectly. Got into windows and shut it down to reinstall the other ram stick. When I booted it up, it did the same reboot loop. Seems like it just doesn't want to take 4GB. BIOS says: Installed Memory: 4.0 GB, Memory Channel Mode: Dual Interleaved. Why won't my XPS 600 boot with 4GB RAM!? It IS a 64-bit OS (had to double check just to make sure)