Dell
Dell PowerEdge R910 Technical Guide 54
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Stores encryption keys for TPM functionality
How is data input to this memory?
Data is pre-programmed by vendor. Keys are
updated using TPM enabled operating systems.
How is this memory write protected?
F2 BIOS setup option to enable/activate/clear
Server CPLD Devices (x2 per baseboard)
2280 macro-cells and 256 macro-cells
Type [Flash PROM, EEPROM]:
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
System power sequence control, error/config
detection, and BIOS-BMC interaction.
How is data input to this memory?
Programming CPLD(s) requires a vendor-
provided logic file and loader program which is
executed by booting up the system from a
floppy or OS-based executable containing the
logic file and the loader. System loaded with
arbitrary data in CPLD(s) will not operate.
How is this memory write protected?
Need AC cycle after updating CPLD
Broadcom
®
5709/57711 PCI-e Network Interface Controller Flash
Type [Flash PROM, EEPROM]:
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Embedded Network Controller FW and config
data
How is data input to this memory?
Loading flash memory requires a vendor-
provided firmware file and loader program
which is executed by booting up the system
from a floppy or OS-based executable
containing the firmware file and the loader.
System loaded with arbitrary data in firmware
memory would not have the network ports
operational.
How is this memory write protected?
There is a quantity of 2 SPI flash on both the I/O
risers. On 1GbE I/O riser, both flash parts are
for the two 5709C controllers whereas on 10Gb
I/O riser, one is for 5709C and the other one is
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