HP ProBook 6550b User Manual

Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 92 screws, in 11 different sizes, that must be removed, replaced, or loosened
when servicing the computer. Make special note of each screw size and location during removal and
replacement.
Service tag
When ordering parts or requesting information, provide the computer serial number and model
description provided on the service tag:
NOTE: The computer battery must be removed to access the service tag.
(1) Product name: This is the product name affixed to the front of the device.
(2) Serial number (s/n): This is an alphanumeric identifier that is unique to each product.
(3) Part number/Product number (p/n): This number provides specific information about the product's
hardware components. The part number helps a service technician to determine what components and
parts are needed.
(4) Warranty period: This number describes the duration of the warranty period for the device.
(5) Model description: This is the alphanumeric identifier used to locate documents, drivers, and
support for the device.
70 Chapter 4 Removal and replacement procedures

HP ProBook 6550b Specifications

General

RAM	Up to 8 GB DDR3
Operating System	Windows 7 Professional
Network	Gigabit Ethernet
Storage	Up to 500GB HDD
Display	15.6-inch diagonal LED-backlit HD anti-glare
Graphics	Intel HD Graphics
Weight	2.5 kg (5.5 lbs)
Battery	6-cell or 9-cell Lithium-Ion
Chipset	Mobile Intel HM57 Express
Optical Drive	DVD+/-RW SuperMulti DL
Wireless	802.11a/b/g/n
Audio	Integrated stereo speakers, Integrated microphone
Ports	USB 2.0, VGA, DisplayPort, eSATA, RJ-45, headphone/microphone combo jack
Processor	Intel Core i5 or i7