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HP t610 and t610 PLUS Flexible Thin Clients - Statement of Volatility

Thin Client products typically have three types of memory devices namely, RAM, ROM, and Flash memory devices. Data stored in the RAM memory device will be lost once the power is removed from the device. RAM devices could be powered by main, aux, or battery power (power states are explained below). Therefore, even when the unit is not connected to an AC outlet, some of the RAM devices could be powered by battery power. Data stored in the ROM or Flash memory devices will retain its data even if the power is removed to the device. Manufacturers of Flash device usually specify a period of time (in the order of 10 years) for data retention.
Definition of power states:
  • Main Power: Power state when the unit is turned on.
  • Aux or Standby power: Power available when the unit is in off state when the power supply is connected to an active AC outlet.
  • Battery Power: Power from a coin battery present in the Thin Client systems.
The table below lists the available memory devices and their types per the models. Please note that the Thin Client systems do not use traditional hard drives with moving parts. Instead, they use flash memory devices with an IDE/SATA front end interface. Hence, the operating systems interface with these flash devices are similar to a regular IDE/SATA hard drive. The flash device contains the image of the operating system. The flash device can only be written to with administrator privileges or allowance.
Please find below a list of steps that should be taken to update BIOS and use it to set the BIOS settings to factory default settings.
  1. Download the latest BIOS for your particular model from the HP website.
  2. Follow the instructions to flash the BIOS that are found on the website.
  3. Restart the system, and while system is powering on (after the HP splash screen, if displayed) press the F10 key to enter the BIOS setup screen.
  4. If the Ownership Tag or Asset Tag is set, manually clear it under Security, System Ids.
  5. Select File, Save Changes and Exit.
  6. To clear the Setup or Power-On passwords if set, and clear any other settings, power down the computer and remove the AC power cord and the computer hood.
  7. Locate the (blue/green) two pin password jumper on header E49 (labeled PSWD) and remove it.
  8. With the AC power cord removed, wait 10 seconds until the unit AC power has drained out, then press the clear CMOS button. (This is typically a yellow push button, labeled CMOS).
  9. Replace the hood and AC power cord and turn the computer on. The passwords are now cleared and all other user-configurable, nonvolatile memory settings are reset to their factory default values.
  10. Re-enter the F10 setup utility.
  11. Select File, Default Setup, Restore Factory Settings as Default. This will set the default settings back to the factory defaults.
  12. Select File, Apply Defaults and Exit.
  13. Shut down the computer, remove the AC power cord and place the (blue/green) jumper back on header E49. Replace the computer hood and power cord.
Description
Location/Size
Power
Loss of data
Comments
System Boot ROM (BIOS)
SPI ROM (32Mbit)
System Memory (RAM)
SODIMM socket, removable (2GB/4GB)
Main Power
If main power is removed
S0/S3/S5/G3 ACPI states are supported
RTC (CMOS) RAM
RTC RAM is 256 bytes RAM Memory embedded the south bridge controller A50M
Main/Battery Power
If battery power is removed
System will not boot without a battery
Keyboard/Mouse (ROM)
2KB embedded in the super I/O controller (SIO12)
Main Power
Keyboard/Mouse (RAM)
256 bytes embedded in the super I/O controller (SIO12)
Main Power
If main power is removed
LOM EEPROM
64Kbit Serial EEPROM (BCM57781) 8KB Internal NVRAM
Aux Power
LAN will not function without MAC and proper register setting
TPM
6KB embedded in TPM Chip. It is ROM for TCG Firmware.
Main Power
The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

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