IBM 689912U Hardware Maintenance Manual - Page 94
System Board Replacement (Type 6898), IntelliStation M Pro, Type 6898 computers.
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- Two front screws - System board mounting screws The system board can also be removed by removing the system board mounting screws, sliding the system board to the back (toward the fan), and lifting the system board out of the system unit. See note below. See "Microprocessor Bracket and Plate Removal/Installation (Type 6588, 6888)" on page 287. Note The retention bracket, system board plate, and screws and washers must be removed from the old system board and installed on the new system board. Important Make sure the plastic washers are attached to the six mounting tabs of the system board plate, and that the washers are under the two front screw heads that secure the system board plate. If any of the washers are not installed, the system board can be damaged. System Board Replacement (Type 6898) This notice is for the system board and EMC shield of the IntelliStation M Pro, Type 6898 computers. Note To avoid damage to the vertical fingers on the EMC shield over the USB, Mouse/Keyboard, and Ethernet connectors, use caution when installing the system board. For removal or installation of the system board, angle the system board under the EMC shield fingers to prevent bending or damaging the fingers. System Board Replacement (Type 6561, 6591) For system board replacement, see "System Board Removal (Type 6561)" on page 276 and "System Board Removal (Type 6591)" on page 291. 84 IBM PC 300/700, IntelliStation Series HMM