System information

Dell
PowerEdge M915 Technical Guide 49
Can user programs or operating system write
data to it during normal operation?
Yes (Customer can use DOS program to update
CPLD image)
Purpose? [boot code]
Provide blade power sequencing and other blade
control logic.
How is data input to this memory?
By way of specialized programming utilities used
in the factory and possibly for field updates.
How is this memory write protected?
Software control.
Remarks
Two CPLDs: master and slave
HDD Backplane Firmware (SEP) Memory
Size:
32KB
Type: [Flash PROM, EEPROM]:
Flash
Can user programs or operating system write
data to it during normal operation?
No. A special (not available to customers) DOS
utility is needed to flash the application code,
and the boot block is cable flashed only.
Purpose? [boot code]
Interface between the RAID controller and the
hard drives as well as a controller for the HDD
status LED.
How is data input to this memory?
Cable flash to flash entire chip or a special utility
(not available to customers) to flash in DOS.
How is this memory write protected?
Software write protected. No hardware
protection pin.
iDRAC6 Enterprise SPI Flash
Size:
2MB
Type: [Flash PROM, EEPROM]:
SPI Flash
Can user programs or operating system write
data to it during normal operation?
No
Purpose? [boot code]
There is boot code that is used by the iDRAC6
Enterprise management controller. Also contains
the Life Cycle Log which contains server
management data unique to the run-time events
of the server itself.
How is data input to this memory?
Flashed in the factory or using Dell flash utility.
Also written to by the iDRAC6 Enterprise
controller to make Life Cycle Log (LCL) entries.
How is this memory write protected?
Software write protected
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