HP ProBook 6440b HP ProBook 6545b, 6540b, 6445b and 6440b Notebook PC - Mainte - Page 96

Primary memory module Removal and replacement procedures Description For use only with HP Compaq 6545b and 6445b computer models: ■ 4096-MB (800-MHz, DDR2) ■ 2048-MB (800-MHz, DDR2) ■ 1024-MB (800-MHz, DDR2) For use only with HP Compaq 6540b and 6440b computer models: ■ 4096-MB (1333-MHz, DDR3) ■ 2048-MB (1333-MHz, DDR3) ■ 1024-MB (1333-MHz, DDR3) Spare part number 583242-001 583241-001 583240-001 593994-001 583074-001 583073-001 Before removing the primary memory module, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the keyboard (see "Keyboard" on page 4-23). Maintenance and Service Guide 4-27