HP 7 G2 Tablet - 1315 HP 7 G2 1311 Tablet Maintenance & Service Guide - Page 31

Non-volatile memory usage Non Volatile Memory Type Amount (Size) Does this memory store customer data? 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? Real Time 256 Bytes No Clock (RTC) battery backed- up CMOS configuration memory (CMOS) 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. Controller (NIC) 64 KBytes (not No EEPROM customer accessible) 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. Keyboard ROM 64 KBytes (not No customer accessible) 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 and is available management). BIOS is on the HP updated. website. Writing data to this ROM in an inappropriate manner can render the PC nonfunctional. DIMM Serial Presence Detect (SPD) configuration data 256 Bytes per No memory module, 128 Bytes programmable (not customer accessible) Yes Stores memory Programmed Data cannot be module by 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. System BIOS 4 to 5 MBytes Yes Yes Store system System BIOS A utility is BIOS code and code is required for PC programmed at writing data to configuration the factory. this memory data. Code is and is available updated when on the HP the system website. Non-volatile memory usage 25