IBM Power System 9040-MR9 - Page 53

Figure 39. Unplugging the cable from its connector on the power midplane
b) Using a 4mm Hex driver, loosen the four captive screws (A) on the power midplane bulkhead. The
screws attach the power midplane to the system chassis. Refer to the following image.
System backplane for the 9040-MR9
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