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HP Compaq Pro 6305 Microtower and Small Form Factor PCs - Statement of Volatility

HP confirms that the AMD-based HP Compaq Pro 6305 series desktop systems contain DDR3 volatile memory (memory amount depends on the customer configuration). In addition, the motherboard, in the condition originally shipped (without subsequent modification or the addition or installation of any applications, features, or functionality), contains the following nonvolatile memory: Real Time Clock battery backed-up configuration memory (256 Bytes), DIMM Serial Presence Detect (SPD) configuration data (256 Bytes per module, 128 Bytes programmable), Serial Peripheral Interface (SPI) ROM for System BIOS (8M Bytes) and Super I/O’s: masked keyboard ROM (overall 2K Bytes). In addition, these units contain a Trusted Platform Module (TPM) that contains 16K Bytes of nonvolatile memory for consumer data. The volatile memory will not hold any consumer data once power has been removed for 30 seconds or longer.
Please find below a list of steps that should be taken to restore the nonvolatile memory found in the AMD-based HP Compaq Pro 6305 series desktop systems.
  1. Download the latest BIOS from the HP website.
  2. Follow the instructions for flashing the BIOS.
  3. Shut down Windows, then power up the computer and enter the F10 setup utility. Press the ESC key when the Press the ESC key for Startup Menu prompt appears near the bottom of the screen. Then choose Computer Setup (F10) from the Startup Menu list of options.
  4. From the main menu, select Security, System Security. In the menu, if the Embedded Security Device Support option shows Disable, skip to step 8.
  5. To erase all security keys from the TPM: under Embedded Security Device in the System Security menu, configure Reset to Factory Settings to Reset.
      note:
    Although the TPM security keys will be cleared, data in the nonvolatile memory indices may not be. Data stored in these indices should not contain security sensitive information. If an application locks down and secures the nonvolatile indices, these indices cannot be cleared.
  6. Press the F10 key to accept changes.
  7. From the main menu select File, Save Changes and Exit.
  8. Re-enter the F10 setup utility.
  9. If the Ownership Tag or Asset Tag is set, manually clear it under Security, System IDs.
  10. Save changes and exit.
  11. To clear the Setup or Power-On passwords, and clear any other settings, power down the computer, remove the AC power cord and the computer hood.
  12. Locate the green two pin password jumper on header E49 (labeled PSWD) and remove it.
  13. Press the clear CMOS button. This is typically a yellow push button labeled CMOS.
  14. Replace the hood and AC power cord and turn the computer on. The passwords and any other CMOS (nonvolatile memory) settings are now cleared.
  15. Re-enter the F10 setup utility.
  16. Select File, Default Setup, Restore Factory Settings as Default. This will change the settings back to factory default.
  17. Select File, Apply Defaults and Exit.
  18. Shut down the computer, remove the AC power cord and place the green jumper back on header E49. Replace the computer hood and power cord.
If Computrace is enabled on the computer, see the service provider for instructions to disable the feature.
The Real Time Clock battery backed-up configuration memory can also be cleared by removing the AC power cord, then removing the coin cell battery found on the motherboard.

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