HP 4730s LJ525UT#ABA manual System board, Description Spare part number

4.Remove the RJ-11 jack from the clip built into the base enclosure (3).

Reverse this procedure to install the RJ-11 jack cable.

System board

NOTE: All system board spare part kits include replacement thermal material.

Description	Spare part number
For use in 4530s models with UMA graphics with WWAN and USB 3.0	646245-001
For use in 4530s models with UMA graphics without WWAN and with USB 3.0	646246-001
For use in models with USB 2.0 and 512-MB of discrete graphics memory	658342-001
For use in models with USB 2.0 and 1-GB of discrete graphics memory	658343-001
For use in models with USB 3.0 and 512-MB of discrete graphics memory	670794-001
For use in models with USB 3.0 and 1-GB of discrete graphics memory	670795-001

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.

Component replacement procedures 85