Oh - what a solution.<P>Depending on the current server applications, you can achieve better performance even by an upgrade to 4xppro200 1mb, e.g. if you're using your system as a databank server. i know these prozzies are hard to find and dammit expensive, but gives you max performance on this platform. on the other side: cpus like ppro overdrives are more expensive, powerleap offers upgrades beginning at 300-400$.<BR>these upgrades should work even in a primergy 560, due the use of vrms that support multiple voltages.<BR>another option is expanding memory. edo ecc memory sticks are very cheap on ebay.