The Fan plugs need an adaptor or 2.
http://www.xoxide.com/3to4pinadaptor.html
http://www.1coolpc.com/accessories.htm
You can use a 3 to 4 pin adaptor and a 3 wire fan Y adaptor to do
this.
There are 2 types of Power Edge Server. 1 Has 440BX chipset and one
has 440GX chipset. The BX board takes up to 1 Gig of Registered PC100
Ram. The 440GX takes up to 2 Gig of Registered PC100 Ram.