IBM UPS3000 - Understanding Power Terms

IBM System x – UPS3000 Training
© 2003 IBM Corporation
4 October 2007
© 2007 IBM Corporation
Understanding Power Terms
• Wattage - a measurement of real power (bucket)
• Amps - measurement of the rate of current flow (flow)
• Voltage - definition of the capacity (pipe)
• Formulas: Amps = Watts/Voltage
VA = Volts*Amps
PF = W/VA
So if server draws 500W how many Amps will it draw
at 110V and at 220V?
5.4A at 110V and 2.3A at 220V
• Most countries in EMEA run at 220-240V (World Trade)
• If you see 32A or 63A this show it is for World Trade
• If you see 30A or 60A this is an indication its for North America
style
x306
BladeCenter
220V
110V