Dell POWEREDGE R720XD - Manual (Page 6)

Item Purpose? (e.g. boot code) How is data input to this memory?
System Memory System OS RAM System OS
Internal USB Key General purpose USB key drive USB interface via PCH. Accessed via
system OS
Trusted Platform Module
(TPM) Storage of encryption keys Using TPM Enabled operating systems
Power Supplies
PSU FW Power Supply operation, power
management data and fault behaviors Different vendors have different utilities
and tools to load the data to memory. It
can also be loaded by Dell Update
Package from LC or OS (Windows and
Linux)
8x2.5" Backplane
SEP internal flash Firmware + FRU I2C interface via iDRAC
2x2.5" Backplane
SEP internal flash Firmware + FRU I2C interface via iDRAC
24x2.5" Backplane
Flash memory Firmware Common Flash memory Interface (CFI)
Expander FRU image FRU I2C interface via iDRAC
BP FRU image FRU I2C interface via iDRAC
16x2.5" Backplane
Flash memory Firmware Common Flash memory Interface (CFI)
Expander FRU image FRU I2C interface via iDRAC
BP FRU image FRU I2C interface via iDRAC
8x3.5" Backplane
SEP internal flash Firmware + FRU I2C interface via iDRAC
12x3.5" Backplane
Flash memory Firmware Common Flash memory Interface (CFI)
BP FRU image FRU I2C interface via iDRAC
Expander FRU image FRU I2C interface via iDRAC
PCIe SSD Backplane
SEP internal flash Firmware + FRU I2C interface via iDRAC
H710, H810, H710M PERCs
NVSRAM Configuration data ROC writes configuration data to
NVSRAM