IEI Integration NANO-9453 v1.0 - Manual (Page 168)

NANO-9453 EPIC Motherboard
Page 150
6.7.1 NorthBridge Configuration
Use the NorthBridge Configuration menu (BIOS Menu 20) to configure the northbridge
chipset.
BIOS Menu 21:NorthBridge Chipset Configuration
DRAM Frequency [Auto]
Use the DRAM Frequency option to specify the DRAM frequency or allow the system to
automatically detect the DRAM frequency.
Auto D EFAULT Automatically selects the DRAM frequency
400MHz Sets the DRAM frequency to 400MHz
533MHz Sets the DRAM frequency to 533MHz