Intel SR9000MK4U Internal Chassis Features, Power Supply Subsystem, Power Supply Configuration

Internal Chassis Features

Power Supply Subsystem

The 12 V hot-swap power supply modules are rated at 1390 W over an input range of 200 - 240 VAC, and at 990 W over an input range of 100-127 VAC.

The power supply module has two outputs, that is, +12 V and +5 Vsb. The standby voltages +5 Vsb is active anytime AC input power is applied to the power supply.

The power supply module is connected to the main board directly and can be used in 1+1 redundant mode.

Note: Two power supplies must be installed and plugged in when a 110 V outlet is used. Hot- swapping and redundancy are not available under this condition.

One power supply can be used when it is connected to a 220 VAC outlet. Under this condition, redundancy is available and a power supply can be hot-swapped if necessary.

Table 6. 1390 W Power Supply Configuration

AC Input	Current	Redundancy	Hot-swap	Remarks
	See Note
200-240 V	9.5 A	Supported	Supported	Restriction of loading is
				needed. Two power
				supplies must be
				installed to enable
				redundancy and hot-
				swap.
100-127 V	12 A	Not supported	Not supported	Restriction of loading is
				needed. Two power
				supplies must be
				installed top operate the
				server system.

Note: This value is applied to one power supply.

12 Intel® Server System SR9000MK4U Product Guide