Dell 2600
Power
Power supply:
Wattage
730 W (AC)
Voltage
85?240 VAC, 50/60 Hz, 12.0 A
200?240 VAC, 50/60 Hz, 5.0 A
Heat dissipation
3100 BTU/hr
Maximum inrush current
under typical line conditions and over the entire system ambient operating range, the inrush current may reach 55 A per power supply for 10ms or less
Dell 2650
Power supply:
Wattage
500 W (AC)
Voltage
100?240 VAC, 50/60 Hz, 5.0 A
200?240 VAC, 50/60 Hz, 5.0 A
Heat dissipation
180 W or 614.3 BTU/hr
Maximum inrush current
under typical line conditions and over the entire system ambient operating range, the inrush current may reach 55 A per power supply for 10ms or less
Hope this helps!