Power Supply Input Voltages

Table 34. Power Supply AC Input Ratings

Parameter

Minimum

Nominal

V in (230)

90 / 180

110-120 / 200-240

V in Frequency

47

50

/ 60

AC Input Current

 

13

A @ 110 VAC

 

 

7 A @ 220 VAC

Maximum

132 / 264

63

Units

VRMS Hz Ampere

The 750 watt autoranging power supplies are capable of handling up to two hard drives at 28 watts per drive (typical 3.5-inch wide by 1-inch high, 10 K RPM drives), eight processors at a maximum of 65 watts per processor, and up to 32 GB of PC100 registered DIMMs.

The total power requirement for the board set exceeds the 240 VA energy hazard limit that defines an operator-accessible area. The 240 VA protection circuits protect the user from a

240 VA energy hazard while hot-swapping—installing or removing—a hard disk drive or fan system.

Power Supply Output Voltages

Table 35. Power Supply Output Ratings (110 V / 220 V)

Power Supply Outputs

3.3V

5 V

12 V -12 V

5 V Standby Vbias = + 15 V

Individual Supply

31 A / 36 A

31 A / 36 A

31 A / 36 A

1A

1A

200mA

Two Supplies1 Nonredundant

58 A / 68 A

58 A / 64 A

58 A / 68 A

1A

1.75A

200mA

Three Supplies1 Redundant

58 A / 68 A

58 A / 64 A

58 A / 68 A

1A 1.75 A

100mA

1Forced load sharing is for 5, 3.3, and 12 V only. The +5 V standby load sharing is the technique for passive load sharing.

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Power System: Description/Calculating Power Usage

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Intel SRPL8 manual Power Supply Input Voltages, Power Supply Output Voltages, Power Supply AC Input Ratings