Statement of Volatility – Dell OptiPlex 3080 Small Form Factor
[CAUTION] A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
The Dell OptiPlex 3080 Small Form Factor contains both volatile and non-volatile (NV) components. Volatile components lose their data immediately after power is removed from the component. Non-volatile (NV) components continue to retain their data even after power is removed from the component. The following NV components are present on the Dell OptiPlex 3080 Small Form Factor.
Table 1. List of Non-Volatile Components on System Board
| Description | Reference Designator | Volatility Description | User Accessible for external data | Remedial Action (Action necessary to prevent loss of data) |
|---|---|---|---|---|
| Embedded Flash memory in embedded controller Microchip DEC1515H-D0-I/Z2 | EC1 | 256K bytes Code/Data SRAM(224KB optimized for code performance, 32KB optimized for code performance), 64 bytes Battery Powerd Storage SRAM | No | N/A |
| System BIOS | U2502 | Non-volatile memory, 256Mbits(32MB), System BIOS and Video BIOS for basic boot operation, ePSA (on board diagnostics.) | No | N/A |
| TPM Nuvoton NPCT750JAB YX | U9101 | 16K bytes non-volatile memory located in the TPM module. | No | N/A |
| System Memory – DDR4 DIMM memory | Connectors: DIMM1, DIMM2, | Volatile memory in OFF state (see state definitions later in text). One or two modules will be populated. System memory size will depend on DIMM modules and will be between 4GB to 64GB. | Yes | Power off system. |
| System memory SPD EEPROM | On memory DIMM(s) | Non-volatile EEPROM memory. (256 bytes). One Device present on each DIMM. Stores memory manufacturer data and timing information for correct operation of system memory. | No | N/A |
| RTC CMOS | RTC | Volatile battery back-backed CMOS memory 256 bytes. Stores CMOS information. | No | Removing the on board Coin Cell battery. |
| Video memory | UMA architecture- uses system memory. | Volatile memory in off state. UMA uses main system memory size allocated out of main memory. | No | Enter S3-S5 states in table format towards the end of this document. |
| M.2 Solid State Disk | User replaceable | Non-volatile magnetic media, various sizes in GB. | Yes | Low level format. |
| Hard drive | User replaceable | Non-volatile magnetic media, various sizes in GB. | Yes | Low level format. |
| CD-ROM/RW/ DVD/ DVD+RW/ Diskette Drives | User replaceable | Non-volatile optical/magnetic media. | Yes | Low level format/erase. |
System State Data Retention
All other components on the motherboard will lose data once power is removed from the system. Primary power loss (Unplug the power cord and remove the battery) will destroy all user data on the memory (DDR4, 2666/2933MHz). Secondary power loss (removing the on board coin cell battery) will destroy system data on the system configuration and time-of-day information.
In addition, to clarify memory volatility and data retention in situations where the system is put in different ACPI power states the following is provided (those ACPI power states are S0, S1, S3, S4 and S5):
- S0 state: The working state where the dynamic RAM is maintained and is read/write by the processor.
- S1 state: A low wake-up latency sleeping state. In this state, no system context is lost (CPU or chip set) and hardware maintains all system contexts.
- S3 state: Called "suspend to RAM” state or stand-by mode. In this state the dynamic RAM is maintained. Dell systems will be able to go to S3 if the OS and the peripherals used in the system supports S3 state. Linux and Windows10 support S3 state.
- S4 state: Called "suspend to disk” state or “hibernate” mode. There is no power. In this state, the dynamic RAM is not maintained. If the system has been commanded to enter S4, the OS will write the system context to a non-volatile storage file and leave appropriate context markers. When the system is coming back to the working state, a restore file from the non-volatile storage can occur. The restore file has to be valid. Dell systems will be able to go to S4 if the OS and the peripherals support S4 state. Windows 10 support S4 state.
- S5 state: The "soft” off state. There is no power. The OS does not save any context to wake up the system. No data will remain in any component on the system board, i.e. cache or memory. The system will require a complete boot when awakened. Since S5 is the shut off state, coming out of S5 requires power on which clears all registers.
Supported ACPI States for Dell OptiPlex 3080 Small Form Factor
| Model Number | S0 | S1 | S3 | S4 | S5 |
|---|---|---|---|---|---|
| Dell OptiPlex 3080 Small Form Factor | X | X | X | X | X |
