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System board
Description Spare part number
System board for use in models with UMA graphics subsystem memory, 592808-001
System board for use in models with DSC HD5430 MDM CR (for model 1.0 only) 592811-001
System board for use in models with DSC HD5430 (for model 1.0 only) 592810-001
System board for use in models with UMA graphics subsystem memory 592809-001
System board for use in models with HD545V DSC (for model 1.0 only) 611554-001
System board for use in models with HD545V DSC CR (for model 1.0 only) 611555-001
System board for use in models with discrete graphics subsystem with HD5470/512 MB (for
model 1.1 only)
616405–001
System board for use in models with discrete graphics subsystem with HD5470/512 MB with
HDMI card reader (for model 1.1 only)
616406–001
System board for use in models with discrete graphics subsystem with HD5470/1 G (for model 1.1
only)
616407–001
System board for use in models with discrete graphics subsystem with HD5470/1 G with HDMI
card reader (for model 1.1 only)
616408–001
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 78)
●
Memory modules (see
Memory module on page 51)
●
WLAN module (see
WLAN module on page 49)
●
Modem module (see
Modem module on page 61)
Before removing the system board, 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 43).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 44)
b. WLAN (see
WLAN module on page 49)
c. Optical drive (see
Optical drive on page 47)
d. Keyboard (see
Keyboard on page 53)
e. Top cover (see
Top cover on page 55)
Component replacement procedures 73