Compaq 178960-004 Deskpro EN Series of Personal Computers Maintenance and Serv - Page 76
Chassis Fan Assembly
UPC - 743172551320
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4.21 Chassis Fan Assembly The Configurable Minitower (CMT) can have up to three fans in it. Every CMT has at least one fan that is integrated in the power supply. If the unit has a 800 MHz or higher processor, it will have a fan attached to the processor heatsink. If the CMT has a 933Mhz or higher processor, it will also have an external chassis fan. 1. Prepare the computer for disassembly (Section 4.2). WARNING: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the power source or the unit before beginning disassembly procedures. 2. Lay the computer down on its large base (side with feet) for greater stability. 3. Remove the access panel (Section 4.6). 4. Disconnect the fan power cable from the system board. 1 5. Remove the four screws that secure the fan to the chassis 2. 6. Remove the fan from the chassis 3. 7. Pull on the two push-pins that secure the fan grill to remove it from the fan. To install the fan assembly, reverse the above procedure. ✎ This fan is used on units with 933 MHz and faster processors. Compaq Deskpro EN Series of Personal Computers 4-39