HP Dv7-1127cl - Pavilion Entertainment - Turion X2 2.1 GHz, Maintenance And Service Manual, Page: 104 / 186

3. Lift the modem module (3) straight up to disconnect it from the system board.
Reverse this procedure to install the modem module.
System board
NOTE: All system board spare part kits include replacement thermal material.
Description Spare part number
System board with RX781 Northbridge and ATI HD3450 graphics subsystem with discrete memory
for use only with computer models equipped with AMD processors 486541-001
System board with M780G Northbridge and UMA graphics subsystem memory for use only with
computer models equipped with AMD processors 486542-001
System board with PM45 Northbridge and nVidia NB9M-GE discrete graphics subsystem memory
and 256-GB of graphics subsystem memory for use only with computer models equipped with
Intel processors 480366-001
System board with PM45 Northbridge and nVidia NB9P-GS discrete graphics subsystem memory
and 512-GB of graphics subsystem memory for use only with computer models equipped with
Intel processors 480365-001
Before removing the USB 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.
94 Chapter 4 Removal and replacement procedures