Dell PowerEdge M710HD Technical Guide - Page 44

Network Daughter Card LOM Memory, Details, Network Daughtercard FRU and Temperature, Sensor, H200

Page 44 highlights

Dell Network Daughter Card LOM Memory Size Type Purpose Can user programs or operating system write data to it during normal operation? How is data input to this memory? How is this memory write protected? Network Daughtercard FRU and Temperature Sensor Size Type Purpose Can user programs or operating system write data to it during normal operation? How is data input to this memory? How is this memory write protected? H200 SRAM Details 4Mb Flash Contains LOM boot code and config data Yes, under software control Requires vendor provided firmware file and loader program used during factory assembly or possible field update; a system loaded with arbitrary data in firmware memory would not operate Software control Details 512bytes EEPROM Contains firmware for FRU and temperature sensor processing No Boot block is cable flashed only; FRU and temperature registers are accessed through iDRAC6 I2C Software control Details Size Type Purpose Can user programs or operating system write data to it during normal operation? Does it retain data when powered off? How is data input to this memory? 128K Bytes Serial RAM Storage configuration data No Yes Host controller through SDRAM bus How is this memory write protected? H200 Flash Size Type Purpose Can user programs or operating system write data to it during normal operation? Does it retain data when powered off? How is data input to this memory? Software write protected Details 64Mb Flash H200 Firmware No Yes Host controller PowerEdge M710HD Technical Guide 44

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Dell
PowerEdge M710HD Technical Guide
44
Network Daughter Card LOM Memory
Details
Size
4Mb
Type
Flash
Purpose
Contains LOM boot code and config data
Can user programs or operating system write
data to it during normal operation?
Yes, under software control
How is data input to this memory?
Requires vendor provided firmware file and loader
program used during factory assembly or possible
field update; a system loaded with arbitrary data
in firmware memory would not operate
How is this memory write protected?
Software control
Network Daughtercard FRU and Temperature
Sensor
Details
Size
512bytes
Type
EEPROM
Purpose
Contains firmware for FRU and temperature
sensor processing
Can user programs or operating system write
data to it during normal operation?
No
How is data input to this memory?
Boot block is cable flashed only; FRU and
temperature registers are accessed through
iDRAC6 I2C
How is this memory write protected?
Software control
H200 SRAM
Details
Size
128K Bytes
Type
Serial RAM
Purpose
Storage configuration data
Can user programs or operating system write
data to it during normal operation?
No
Does it retain data when powered off?
Yes
How is data input to this memory?
Host controller through SDRAM bus
How is this memory write protected?
Software write protected
H200 Flash
Details
Size
64Mb
Type
Flash
Purpose
H200 Firmware
Can user programs or operating system write
data to it during normal operation?
No
Does it retain data when powered off?
Yes
How is data input to this memory?
Host controller