HP ProBook 6445b - Notebook PC, Maintenance And Service Manual

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4–30 Maintenance and Service Guide
Removal and replacement procedures
Primary memory module
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 4-25 ).
Description Spare part number
For use only with HP Compaq 6545b and 6445b computer models:
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4096-MB (800-MHz, DDR2) 598855-001
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2048-MB (800-MHz, DDR2) 598858-001
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1024-MB (800-MHz, DDR2) 598861-001
For use only with HP Compaq 6540b and 6440b computer models:
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4096-MB (1333-MHz, DDR3) 599092-002
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2048-MB (1333-MHz, DDR3) 598856-002
■
1024-MB (1333-MHz, DDR3) 598859-002