Yes there are, at least 2 differnet types.... mostly it is machines sold as workstations and servers that need VRM modules to run their cpus..... At 11:45 AM 5/15/02 -0400, you wrote: >Is there such a thing? All I had to do in my tyan machine was buy a second >CPU and slap it in. But I keep seeing ebay sellers describe P2 machines >as no CPU, no VRM.