Chapter 4: BIOS
4-13
Power Down Mode
This sets the power down mode. Options are
Channel
and Chip Select.
ECC Confi guration
DRAM ECC Enable
DRAM ECC allows hardware to report and correct memory errors automati-
cally. Options are
Enabled
and Disabled.
DRAM Scrub Redirect
Allows system to correct DRAM ECC errors immediately, even with
background scrubbing on. Options are Enabled and
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
Dis-
abled
and various times in nanoseconds and microseconds.
L2 Cache BG Scrub
Allows L2 cache RAM to be corrected when idle. Options are
Disabled
and
various times in nanoseconds and microseconds.
L3 Cache BG Scrub
Allows L3 cache RAM to be corrected when idle. Options are
Disabled
and
various times in nanoseconds and microseconds.
DRAM Timing Confi guration Memory Clock Mode
This setting specifi es the memory clock mode. Options are
Auto
, Limit and
Manual.
DRAM Timing Mode
This setting specifi es the DRAM timing mode. Options are
Auto
, DCT0, DCT1
and Both.
Power Down Control
Allows DIMMs to enter power down mode by deasserting the clock enable signal
when DIMMs are not in use. Options are
Auto
and Disabled.
