I have just purchased a AMD Athlon XP 3200 and replaced the old AMD 1800 I had. When my computer boots up, previously, the speed was displayed as 1150 mhz. With the new 3200 in place, this is now 1100mhz This strikes me as being odd...it appears to be slower? If its helpful, I am using a GA-7N400 Pro2 NForce2 Chipset motherboard. While I am on, there is something else. I recently purchased two 512mb Ram DIMMs DDR400 3200 (non-branded). The computer seems really unstable with just these two and the Dual Channel doesnt seem to work well. The system seems to reboot every now and then. If I put in another 256mb, its fine. I was considering replacing them for two new Twin 512mb modules. Can you recommend this?