A Good score on the Umax S900. You can look on the bottom of the case and see if it was a Dual CPU machine. It will have a S900D desigination on the bottom of the case.
I have one of these machines. Its running a Newertech G3 275/183 upgrade CPU in it as it originaly had the Dual 180MHz CPU's in it. However when I got it the CPU's were gone. In order to use the second CPU slot you will need to find a set of DayStar CPU's made for the Umax S900D.
They are somewhat rare and a bit pricey. I'm not sure if a Mac dual CPU daughter card will work in the Umax although I do know that most of the single CPU daughter cards will. If it does have a G4 upgrade card in it I'd stay with that.
I have one of these machines. Its running a Newertech G3 275/183 upgrade CPU in it as it originaly had the Dual 180MHz CPU's in it. However when I got it the CPU's were gone. In order to use the second CPU slot you will need to find a set of DayStar CPU's made for the Umax S900D.
They are somewhat rare and a bit pricey. I'm not sure if a Mac dual CPU daughter card will work in the Umax although I do know that most of the single CPU daughter cards will. If it does have a G4 upgrade card in it I'd stay with that.