Acer R920 Series manual Single-channel mode, To configure memory to single-channel mode

172 Appendix B: Memory configuration

7 Press Y to confirm. The server reboots to activate the changes.

Single-channel mode

Single-channel mode is a failsafe mode when the installed memory configuration is incompatible with dual-channel operation. In this mode, only Branch 0, Channel 0 is operational with all other FBDIMMs disabled automatically.

To configure memory to single-channel mode:

1Run BIOS setup. See “Entering BIOS setup” on page 100.

2Use the up and down arrow keys to select the Advanced menu.

3Use the up and down arrow keys to select Memory Configuration, then press Enter. The Memory Configuration menu appears.

4Use the up and down arrow keys to select Memory RAS and Performance Configuration, then press Enter. The Memory RAS and Performance Configuration menu appears.

5Set the Select Memory RAS Configuration to RAS Disabled.

6Press F10 to save changes and exit.

7Press Y to confirm. The server reboots to activate the changes.