Necro, can only turn on one machine at a time anyway or they blow the circuit breaker. Just too much juice :( Don't use a KVM, too damned expensive with DVI. My monitor auto senses and has a USB hub so I just put a small USB hub behind the monitor for each rig and change the plug back and forth depending on which rig I want to run ... ??? hey.. it works
Once I get downstairs and set up my Maad Lab or a tor y I'll run some dedicated circuits and hit the dice and ln2 simultaneously