Delivery via Amazon naturally 1A fast. But .... These memory modules are compatible in any way with the system where I wanted to use it. (DDR2-667 PC2-5300) Insert both modules in the 2 single existing RAM banks, the computer does not boot. Infected only one of the two modules (alone) in regardless of RAM bank, the computer also will not boot. Put one of the new modules and one of my old modules (2GB (new); 512MB (old)), the computer drives, although high (without complaint), but the old memory is then suppressed. I mean, the only 2,00GB displayed instead of the actual 2,50GB. (Checked with Everest Ultimate) Have any options tried out and just came to a conclusion that I need to send the memory back, because these modules are absolutely useless for me. If you would look at the other reviews read through so I say that these are not compatible with any system of these memory modules "CSX". So I would remove the "100% compatible with ...." from the description.
