Dell Statement of Volatility – Dell PowerEdge T550 Owner's Manual
Summary
The Statement of Volatility for Dell PowerEdge T550 server identifies volatile and non-volatile memory components on the system board. Non-volatile components include PCH internal CMOS (256 bytes), BIOS SPI flash (32MB), iDRAC SPI flash (4MB), BMC eMMC (8GB), and various regulator EEPROMs. Volatile components include iDRAC DDR4 (8Gb), system CPLD RAM, and system memory using DDR4 DIMMs up to 64GB each. Configuration options like microprocessors and storage controllers are documented separately.
Page 1 Text Content
Statement of Volatility – Dell Power Edge T550 Dell Power Edge T550 contains both volatile and non-volatile (NV) components. Volatile components lose their data immediately upon removal of power from the component. Non-volatile components continue to retain their data even after the power has been removed from the component. Components chosen as user- definable configuration options (those not soldered to the motherboard) are not included in the Statement of Volatility. Configuration option information (pertinent to options such as microprocessors, remote access controllers, and storage controllers) is available by component separately. The following NV components are present in the Power Edge T550 server.
Item Non-Volatile Quantity Reference Designator Size
or Volatile
Planer PCH Internal CMOS Non-Volatile 1 U_PCH1 256 Bytes RAM BIOS SPI Flash Non-Volatile 1 JP45 32 MB
BIOS Data SPI Flash Non-Volatile 1 U12 4 MB
i DRAC SPI Flash Non-Volatile 1 JP4 4 MB
BMC EMMC Non-Volatile 1 U9 8 GB
i DRAC DDR4 Volatile 1 U4 8Gb
System CPLD RAM Volatile 1 U_CPLD1 432 Kb
System CPLD RAM Non-Volatile 1 U_CPLD1 448 Kb
System Memory Volatile Up to 8 per CPU1: A1~A8, Up to 64 GB per DIMM
CPU CPU2: B1~B8
CPU Vcore and VSA Non-Volatile 1 for CPU1, PU1 16KB
Regulators 1 for CPU2 PU13 Memory VDDQ Non-Volatile 1 for CPU1, PU25 16KB Regulators 1 for CPU2 PU30
LOM SPI FLASH Non-volatile 1 U2 8MB
8 x 2.5" SAS/SATA front Backplane
SEP internal flash Non-Volatile 1 U46 4Mbit in-chip SPI Serial
Flash
Backplane External Non-Volatile 1 U46 256 Bytes FRU 8 x 3.5" SAS/SATA front Backplane SEP internal flash SEP internal SEP internal SEP internal flash SEP internal flash
flash flash
Backplane External Backplane Backplane Backplane External FRU Backplane External FRU FRU External FRU External
H745 f PERC (Internal Controller)
Page Summary Contents For Dell Statement of Volatility – Dell PowerEdge T550 Owner's Manual
Manual Details
| Brand | Dell |
|---|---|
| Pages | 10 |
| File Size | 513.00 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What determines if a device component's data is retained when powered off?
Volatile components lose data instantly when power is removed, while non-volatile (NV) components retain their data.
How can the iDRAC firmware be cleared in the PowerEdge T550 server?
iDRAC may issue a clear command to erase all firmware updates of the primary IDSDM device, although this won't affect the general SPI NOR area.
Is user-definable configuration information included in the Statement of Volatility?
No, components chosen as user-definable options (those not soldered) are not listed in the Statement of Volatility. Detailed info is available per component.
How can data be input to the BOSS-S2 RAID controller?
Data is programmed during manufacturing, or by writing an image via the firmware update process using the Flash tool with command 'go.nsh w y'.