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Chapter 4: BIOS
4-15
Power Down Mode
This sets the DDR power down mode. Options are Auto, Channel and
Chip Select.
DRAM Parity Enable
This sets the DRAM Parity Enable to either Auto, Enabled and Disabled.
Bank Swizzle Mode
This sets the Bank Swizzle Mode to either Auto, Enabled and Disabled.
ECC Confi guration
ECC Mode
This submenu sets the level of ECC protection. Options include Disabled,
Basic, Good, Super, Max and User. Selecting User activates the other op-
tions for user setting.
Note: The "Super" ECC mode dynamically sets the DRAM scrub rate so all
of memory is scrubbed in 8-hours.
DRAM ECC Enable
This setting allows hardware to report and correct memory errors automati-
cally, maintaining system integrity. Options are Enabled or Disabled.
DRAM Scrub Redirect
This setting allows the system to correct DRAM ECC errors immediately
when they occur, even if background scrubbing is off. Options are Enabled
or Disabled.
4-Bit ECC Mode
Allows the user to enabled 4-bit ECC mode (also known as ECC Chipkill).
Options are Enabled and Disabled.
DRAM BG Scrub
Corrects memory errors so later reads are correct. Options are Disabled
and various times in nanoseconds and microseconds. The default is
163.8us.