IBM 865741Y Handbook - Page 229

Setting the ROM Operation Mode Switch If the power to your server is interrupted while POST/BIOS is being updated, your server might not restart correctly. If this happens, perform the following procedure to recover. Before you begin: Read "Electrical Safety" on page 54 and "Handling Static-Sensitive Devices" on page 55. Turn off the server and all other connected devices. Disconnect all external cables attached to the server; then, remove the server cover (see "Preparing to Add Options" on page 56). 1. Locate the configuration switches (also known as rocker switches) on the system board. For more information, refer to the label inside the server, or see "System Board Illustration" on page 203. 2. To set the ROM operation mode to the appropriate value, set switch 5 as shown in the following illustration. It might be helpful to use the end of a small screwdriver to set the switch. Normal ROM Operation 12345678 ON OFF ROM Recovery Mode 12345678 ON OFF 3. Move the switch to the ON position. 4. Insert the POST/BIOS update (flash) diskette into drive A. 5. Turn on the server. 6. After the update session completes, turn off the server and remove the diskette from drive A. 7. Move the switch back to the OFF position. Chapter 7. Server Records and Specifications 211