5. Use the thermal-grease syringe to place 16 uniformly spaced dots of 0.01 mLeach on the top of the microprocessor.Note: 0.01mL is one tick mark on the syringe. If the grease is properly applied,approximately half (0.22 mL) of the grease will remain in the syringe.6. Install the heat sink onto the microprocessor as described in “Removing andinstalling a microprocessor” on page 122.PCI-X board assemblyTo remove the PCI-X board assembly, complete the following steps:ACDCHandleRetainerscrews1. Read the safety information that begins on page vii and “Installation guidelines”on page 99.2. Turn off the server and peripheral devices, and disconnect the power cordsand all external cables necessary to replace the device.3. Remove the top cover and bezel (see “Top cover and bezel” on page 113).4. Remove the power supplies and power-structure assembly (see “Power-supplystructure” on page 119).5. Remove the I/O board (see “I/O board” on page 115).6. Remove all adapters and adapter dividers, and place the adapters on astatic-protective surface.Note: You might find it helpful to note where each adapter is installed beforeremoving the adapters.7. Remove the card guide (see “PCI-X adapter guide” on page 118).126 IBM xSeries 460 Type 8872 and xSeries MXE 460 Type 8874: Problem Determination and Service Guide
