pc2700s

I am currently running Win7 Ultimate on my Acer Aspire 5000 notebook. I wanted to upgrade the memory from factory installed 1 GB to 2 GB. I purchased 2 ea. 1 GB sticks of DDR-333MHz-CL2.5, PC 2700S memory. I installed the memory, booted up, went into the BIOS and seeing that the BIOS recognizes...