I'll be updating my novell 4.11 server but my supplier doesnt guarantee that the server he quoted is 100% compatible (driver) for Novell 4.11

Is Novell 4.11 really obsolete? if yes, when was the hardware support for Novell 4.11 discontinued? Coz i need to justify to my General Manager that we can't use Novell 4.11 anymore coz no Server PC in the market has driver support for this OS.

Any help like links or more info is highly appreciated...