So I know this is an old pc but I want to blow some new life into my dell xps 700. So I already installed 2 dimms of 2gb running at 800mhz and it worked. But I recently got a good deal at ddr2 ram. So I bought 4x2gb sticks of Corsair XMS2 DHX CM2X2048-6400C5DHX. So this is also 800mhz but seeing that the dell xps 700 officially doesn't support 800mhz pc6400 ram, wil this work? Please anwser that would be greatly appreciated.


Dell Xps 700

Core 2 quad q6600

2x2gb ddr2 800Mhz 

Nvidia gt440

250gb hdd

Creative 460 sound card