not a single ddr2 2g but 2 ddr2 1g in each slot someone was saying it might be in the bios or that the 1g may not be registered and that is why the 512mb has to be in in order for the computer to start up
This is all the information I got from where I purchased the ram
1GB DDR2 PC2-3200
400Mhz (Not Overclock)
128Mx64 Low Density
Unbuffered, Non-ECC, Non-Registered
Best Quality Chipset
Brand New in Antistatic Bag
Compatible with 99.9% of the motherboards. It is not regular DDR memory. It is DDR2 PC2-3200. Make sure your computer is using DDR2 type memory. Unlike DDR (184-Pin), it has 240 Pins. Please check your Pc's manual.
Our modules are fully tested to be compatible to most major brand PCs and OEM motherboards. We use highest quality memory available in the market and each individual is packed in antistatic bag. This module is not for Apples Mac Machine since we haven't tested it yet and cannot be guaranteed.