Non Volatile | Amount | Does this | Does this | What is the | How is data input into this |
Memory Type | (Size) | memory | memory | purpose of this | memory? |
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| store | retain data | memory? |
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| customer | when power |
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| data? | is removed? |
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How is this memory write protected?
802.11 WLAN | 4kb to 8kb | No | Yes | Stores | Programmed at the factory. |
EEPROM |
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| configuration | Tools for writing data to this |
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| and calibration | memory are not made public. |
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| data. |
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A utility is required for writing data to this memory and is typically not made available to the public unless a firmware upgrade is necessary to address a unique issue.
Web Camera | 64K bit | No | Yes | Store Web Cam | Using a utility from the device |
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| configuration | manufacturer that can be run |
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| and firmware. | from Windows. |
A utility is required for writing data to this memory and is typically not made available to the public unless a firmware upgrade is necessary to address a unique issue.
Fingerprint Reader 512kByte | Yes | Yes | Stores | By enrolling in HP | Only a digitally signed |
Flash |
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| fingerprint | ProtectTools Security | application can make the |
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| templates. | Manager. | call to write to the flash. |
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Questions and answers
1.How can the BIOS settings be restored (returned to factory settings)?
a.Turn on or restart the computer and press F10 when prompted near the bottom of the display.
b.Select File, then select Restore defaults.
c.Follow the on-screen instructions.
d.Select File, save changes and exit, then press Enter.
2.What kind of configuration data is stored on the DIMM Serial Presence Detect (SPD) memory module? How would this data be written?
The DIMM SPD memory contains information about the memory module such as size, serial number, data width, speed/timing, voltage and thermal information. This information is written by the module manufacturer and stored on an EEPROM. This EEPROM cannot be written to when the memory module is installed in a PC. Third party tools do exist that can write to the EEPROM when the memory module is not installed in a PC. There are various third party tools available to read SPD memory.
3.Does the “Firmware Hub for System BIOS” contain the BIOS program? Is this chip writable, and if so how?
The Firmware Hub does contain the BIOS program and is writable. A utility is required to perform the write function.
4.In some PC systems, the Firmware Hub for System BIOS is a flash memory chip so that updates can be written by the customer. Is this true for these BIOS chips?
Yes, they are flash memory chips.
5.What is meant by “Restore the nonvolatile memory found in
