HP CQ42-134TU, CQ42-109TU, CQ42-103TU, CQ42-275TX manual System board, Description Spare part number

System board

Description	Spare part number
System board for use in models with discrete graphics subsystem (for models 1.0 and 1.1 only)	595181-001
System board for use in models with Unified Memory Architecture (UMA) graphics subsystem	595182-001
System board for use in models with discrete graphics subsystem and HDMI card reader (for	595183-001
models 1.0, 1.1 and 1.2 only)
System board for use in models with UMA graphics subsystem and HDMI card reader	595184-001
System board for use in models with UMA graphics subsystem memory, Intel GL40 chipset, and	605140-001
HDMI card reader
System board for use in HM55 HD5430/1 G discrete subsystem (for model 1.1 only)	608823-001
System board for use in HD5430/1 G discrete subsystem with HDMI card reader (for model 1.1	608824-001
only)
System board for use in HM55 HD545V discrete subsystem (for model 1.1 only)	615577-001
System board for use in HM55 HD545V discrete subsystem with HDMI card reader (for model 1.1	615578-001
only)
System board for use in HD5470/512 MB discrete subsystem (for model 1.2 only)	615579-001
System board for use in HD5470/512 MB discrete subsystem with HDMI card reader (for model	615580-001
1.2 only)
System board for use in HD5470/1 GB discrete subsystem (for model 1.2 only)	615581-001
System board for use in HD5470/1 GB discrete subsystem with HDMI card reader (for model 1.2	615582-001
only)
System board for use in HD6370/512 subsystem with HDMI card reader (for model 1.3 only)	631593-001
System board for use in HD6370/1-GB (for model 1.3 only)	631594-001
System board for use in HD6370/512M with HDMI reader card (for model 1.3 only)	631595-001
System board for use in HD6370/512M i3-370M with HDMI (for model 1.3 only)	631596-001
System board for use in i3-350M UMA subsystems (for model 1.3 only)	634648-001
System board for use in i3-370M UMA subsystems (for model 1.3 only)	637583-001
System board for use in HD6370/512M i3-370M (for model 1.3 only)	637584-001
System board GL40 UMA HDMI ROM 2M (for model 1.3 only)	639266-001

When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board:

●RTC battery (see RTC battery on page 89)

●Memory modules (see Memory module on page 61)

●WLAN module (see WLAN module on page 58)

●Modem module (see Modem module on page 71)

ENWW Component replacement procedures 83