IBM 6000R Hardware Maintenance Manual - Page 163

System board assembly with backerplate Before you begin: • Read "Safety information" on page 196. • Review the information in "Before you begin" on page 63. 88 1 Shipping screws 2 Release latch assembly 3 System board assembly To remove the system board assembly with backerplate, do the following: 1. Power-off the server, if it is on. 2. Unplug the server. 3. Remove the top cover (see "Removing the server top cover and bezel" on page 67). 4. Remove the four fan assemblies. 5. Remove the four-fan housing (see "Four-fan housing" on page 146). 6. Disconnect cables on the system board. 7. Remove the memory card. 8. Remove all microprocessors. 9. Remove the shipping screw on each side of the server. 10. Engage the release latch assembly: a. Press in on the release button on each side of the server at the same time. b. Push each of the two release latches at the same time toward the rear of the server FRU information (service only) 151