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77
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3.
Install a new processor in the reverse procedure.
Note the direction of the processor in the installation. Match the pin mark on the
processor with that on the socket to install it correctly.
[Installation of heat sink]
Install the heat sink in the procedure reverse to the removal.
Notes:
Any used thermal interface cannot be reused.
If the heat sink is removed from the processor once, remove the thermal interface pasted on the
processor and heat sink completely by using a plastic paddle or plate. Then paste new thermal
interface on the heat sink
For replacement of processor board
Use the new thermal interface attached to the processor board of a maintenance device.
For replacement of processor
Use the new thermal interface attached to the processor of a maintenance device.
For replacement of heat sink
Use the new thermal interface attached to the heat sink of a maintenance device.
Pin mark
Summary of Contents for EXPRESS5800/140He
Page 1: ...Nec coF S e r v i c e G u i d e EXPRESS5800 140He EXPRESS5800 140Rd 4 ...
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Page 144: ... 128 8 2 3 Processor and VRM Processor 1 Processor 2 Processor 4 Processor 3 ...
Page 153: ... 137 voltage drop and the system is restarted This is not an error ...
Page 161: ... 145 No Error message Action 8 The firmware is erased unsuccessfully ...
Page 163: ... 147 ...
Page 181: ... 165 12 3 Block Diagram ...
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