I'm looking to upgrade the memory in my HP Proliant DL380 G4 server, as it currently only has 2GB total. I know it can only handle 2GB or smaller modules. It uses PC2-3200R 400MHz DDR2 ECC memory. I have a ton of PC2-5300 ECC memory from other HP servers. However, it will not boot with that memory. Is there a way I can enable the server to use PC2-5300 memory? I know most PCs will just lower the speed, the only requirement being to use the same DDR generation (DDR, DDR2, DDR3, etc). Thanks