Intel Motherboard Raptor AT Installation Manual page 33

Aperture Access Global Enable
The options are Enabled and Disabled (default).
PCI 0 Agent to Aperture Access
N/A.
Memory Autosizing Support
The settings for the option are: Auto (default) (uses SPD) and
Enabled (BIOS test).
DRAM Integrity Mode
The options are None (default), EC and ECC Hardware.
DRAM Refresh Rate
The settings for the option are: 15.6 (default), 31.2, 62.4, 124.8,
7.8 and External.
Memory Hole
The settings for the option are: Disable (default), 512K-640K
and 15M-16M.
SDRAM CAS# Latency
The options are Auto (default), 3 DCKLs and 2 DCKLs.
SDRAM RAS# to CAS# Delay
The options are Auto (default), 3 SCKLs and 2 SCKLs.
SDRAM RAS# Precharge
The options are Auto (default), 3 SCKLs and 2 SCKLs.
Chapter 2:BIOS Configuration
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