I have an emachine T5026 it came with 2 256 DDR PC3200 chips. I went out and got 2 1G DDR PC3200 chips. After I installed them my puter keeps rebooting. I have tried only using 1 of the 1G chips but it still reboots. To make sure it wasn't just my puter I put back in the 2 256 chips and it went back to normal. How can I upgrade my RAM? Can I upgrade my RAM?