HP ElitePad 1000 HP ElitePad 1000 G2 Maintenance and Service Guide - Page 110

Non-volatile memory usage Non Volatile Memory Type Amount (Size) Real Time Clock (RTC) battery backed-up CMOS configuration memory (CMOS) 256 Bytes Does this memory store customer data? No Controller (NIC) 64 KBytes (not No EEPROM customer accessible) Keyboard ROM 64 KBytes (not No customer accessible) DIMM Serial 256 Bytes per No Presence Detect memory (SPD) module, 128 configuration Bytes data programmable (not customer accessible) Does this memory retain data when power is removed? What is the purpose of this memory? How is data input into this memory? How is this memory write protected? Yes Stores system Using the F10 This memory is date and time Setup utility or not write- and limited changing the protected. HP keyboard Microsoft recommends controller data. Windows date password and time. protecting the F10 Setup utility. Yes Store NIC Using a utility A utility is configuration from the NIC required to and NIC vendor that can write data to firmware. be run from this memory DOS. and is available from NIC vendor. Writing data to this ROM in an inappropriate manner will render the NIC nonfunctional. Yes Stores firmware Programmed at A utility is code the factory. required for (keyboard, Code is writing data to mouse, & updated when this memory battery the system BIOS and is available management). is updated. on the HP website. Writing data to this ROM in an inappropriate manner can render the PC nonfunctional. Yes Stores memory Programmed by Data cannot be module the memory written to this information. vendor. memory when the module is installed in a PC. The specific write protection method varies by memory vendor. 102 Chapter 9 Statement of Volatility