Bought for my old NetBook Acer Aspire 1410 these memory modules. The 2Gb have really not been enough! About CPUID I have read that I need the SO-DIMM PC2-6400 (800MHz). Not only because of the good reviews, but also because of the price / performance ratio with this provider, I ordered this. Fast delivery, installed, detected in BIOS, Win7 64bit recognized all 4GB and in CPUID well. What more do you want ...