BIOS
ATCA-7475 Installation and Use (6806800S38D)
99
This configuration is set when BIOS defaults are loaded.
For other applications it might be better to set different values, especially when power savings
are desired.
4.7.8
Memory Configuration
The ATCA-7475 supports three different memory RAS (Reliability, Availability, and
Serviceability) modes: Independent Channel Mode, Mirrored Channel Mode, and Lockstep
Channel Mode.
4.7.8.1
Independent Channel Mode
In independent mode, all four channels are operating independently. The ECC code appears in
each independent channel. Failure of the DRAM can be corrected. The correction capabilities in
independent mode are:
Correction of any x4 DRAM device failure.
Detection of 99.986% of all single bit failures that occur in addition to an x4 DRAM failure.
Detection of any 2-bit uncorrectable errors.
4.7.8.2
Mirrored Channel Mode
The Integrated Memory Controller supports mirroring across channels. DIMM organization in
each slot of one channel must be identical to the DIMM in the corresponding slot of the other
channel. When mirroring is enabled, the memory image in Channel 0 is maintained similar to
Channel 1. DIMMs and Channel 2 is maintained to Channel3 DIMMs. Uncorrectable errors are
logged and signaled as correctable, but change the channel state to "Disabled", and the
working partner to "Redundancy Loss".
Intel (R) SpeedStep(tm)
Disabled
C-States
Enabled
C3-State
Disabled
C6-State
Disabled
Table 4-16 CPU Performance Settings
Parameters
Settings
Summary of Contents for ATCA-7475
Page 1: ...ATCA 7475 Installation and Use P N 6806800S38D May 2014 ...
Page 24: ...ATCA 7475 Installation and Use 6806800S38D About this Manual 24 About this Manual ...
Page 34: ...ATCA 7475 Installation and Use 6806800S38D Sicherheitshinweise 34 ...
Page 42: ...Introduction ATCA 7475 Installation and Use 6806800S38D 42 ...
Page 64: ...Hardware Preparation and Installation ATCA 7475 Installation and Use 6806800S38D 64 ...
Page 80: ...Controls Indicators and Connectors ATCA 7475 Installation and Use 6806800S38D 80 ...
Page 138: ...Functional Description ATCA 7475 Installation and Use 6806800S38D 138 ...
Page 250: ...Supported IPMI Commands ATCA 7475 Installation and Use 6806800S38D 250 ...
Page 268: ...FRU Information and Sensor Data Records ATCA 7475 Installation and Use 6806800S38D 268 ...
Page 281: ......