dynabook PORTEGE X40-J Series Maintenance Manual

Maintenance Manual (960-942) 4-28
Replacement Procedures
Figure 4-33 Removing the Fin
4.20.2 Installing the Fin
To install the Fin, follow the steps below and refer to Figure 4-33.
1. Set the Fin in place and secure it with the screws.
4.21 System board
S2 x 2.3CT
Fin
1
2
3
When removing the Fin, be sure to remove the screws in the reverse order
of the number marked on the Fin.
When installing the Fin, be sure to install the screws in the order of the
number marked on the Fin.
1. If replacing with a new system board, update the DMI information as
described in Chapter 3, Tests and Diagnostics. Also update with the
latest BIOS and EC/KBC as described in Appendix G, BIOS Rewrite
Procedures, and Appendix H, EC/KBC Rewrite Procedures.
2. When replacing the system board with a new one, the ProductKey
(MBR-DPK) must be written on the system board.
3. When removing/installing the system board, do not handle with the
handling prohibition area.

dynabook PORTEGE X40-J Series Specifications

General

Graphics	Intel Iris Xe Graphics
Wireless	Wi-Fi 6 (802.11ax), Bluetooth 5.1
Processor	Up to 11th Gen Intel® Core™ i7 Processors
Display	14.0" FHD (1920 x 1080) Anti-glare
RAM	Up to 32GB DDR4
Storage	Up to 1TB PCIe SSD
Operating System	Windows 10 Pro
Weight	Approx. 1.05 kg
Security	Fingerprint Reader, TPM 2.0
Ports	2 x Thunderbolt 4, 1 x USB 3.2, HDMI, microSD card slot