IBM 8681 Hardware Maintenance Manual - Page 39

(WT). Selecting write-back mode will provide the maximum system performance. The default values are Write back and Enabled. For proper server operation, do not change the values in this field. Note You cannot enable or disable the cache for individual processors. Memory settings: Select this choice to manually disable or enable a dual inline memory module (DIMM) slot. If you replaced a defective DIMM, you must manually enable the DIMM slot in the Configuration/Setup Utility program. In this case, the system does not automatically access the Configuration/Setup Utility program to enable the DIMM slot. If a memory error is detected during POST or memory configuration, the server can automatically disable the failing DIMM slot and continue operating with reduced memory capacity. If this occurs, you must manually enable the DIMM slot after the problem is corrected. You can diagnose to just one DIMM. To manually enable a DIMM slot: 1. Select Memory Settings from the Advanced Setup menu. 2. Use the Up Arrow (↑) or Down Arrow (↓) key to highlight the DIMM slot that you want to enable. 3. Use the Left Arrow (←) or Right Arrow (→) key to select Enable. For additional information on DIMMs, see "DIMM and memory board installation" on page 63. Processor settings: Select this choice to manually enable a processor slot. If you replaced a defective processor, you must manually enable the processor slot in the Configuration/Setup Utility program. In this case, the system does not automatically access the Configuration/Setup Utility program to enable the processor slot. If a processor error is detected during POST or runtime, the server can automatically disable the failing processors and restart the system to reconfigure without the defective processors. If this occurs, you must manually enable the processor slots after the problem is corrected. To manually enable a processor slot: Netfinity 8500R - Type 8681 31