Removing And Replacing A Power Module - IBM 8852 - BladeCenter H Rack-mountable Service Manual

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Removing and replacing a power module

Your BladeCenter might be equipped with 2900W power modules that have a

removable fan pack (part number 39Y7408), or it might be equipped with 2980W

high-efficiency power modules with integrated fan pack (part number 39Y7415).

The 2900W and 2980W high-efficiency power modules are not interchangeable

within the same power domain of the chassis. A power module configuration is

supported only if the two power modules are matched within the same power

domain:

v Power modules 1 and 2 provide power for domain A (blade slots 1 to 7)

v Power modules 3 and 4 provide power for domain B (blade slots 8 to 14)

The following is an example of a supported configuration:

v Domain A: Power Module 1; 2900W, Power Module 2; 2900W

v Domain B: Power Module 3; 2980W, Power Module 4; 2980W

This is an example of a non-supported configuration:

v Domain A: Power Module 1; 2900W, Power Module 2; 2980W

v Domain B: Power Module 3; 2900W, Power Module 4; 2980W

Attention: Failed power modules should only be replaced with the same type of

power module.

Note: The 2980W high-efficiency power modules are identified by a label on the

power module handle. Remove the top or bottom bezel as needed to access the

power module handle. 2900W power modules do not have this label.

2980 W label

2980 W High

Efficiency label

Chapter 4. Removing and replacing BladeCenter components

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