Digital Equipment AlphaServer 1200, Руководство по обслуживанию

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Removal and Replacement 6-25
Removal
1. Shut down the operating system and power down the system.
2. Expose the card cage side of the system. See Section 6.3.
Removing Fan 0
3. Remove the CPU module(s).
4. Remove memory.
5. Unplug the twisted pair power cord from J5 on the motherboard and pass the
cord through the sheet metal to the fan compartment. Remove the plastic
module guides that interfere with access to the four Phillips head screws holding
the fan in place.
6. Unscrew the fan from the frame and remove it from the system.
Removing Fan 1
3. Remove any PCI modules that inhibit access to the four Phillips head screws
that hold fan 1 in place.
4. Remove any plastic module guides that prevent access to the Phillips head
screws that hold fan 1 in place.
5. Unplug the twisted pair power cord from J4 on the motherboard and pass the
cord through the sheet metal to the fan compartment.
6. Unscrew the fan from the frame and remove it from the system.
acement
Reverse the steps in the Removal procedure.
Verification
Power up the system. If the fan you installed is faulty, the system will not power up.