Proface PS4800 - 19 Panel PC" - Manual (Page 148)

Hardware Modifications
148
The table below describes how to install a PCI/PCIe card:
Step Action
1 Disconnect the power cord to the Industrial Personal Computer.
2 Touch the housing or ground connection (not the power supply) to discharge
any electrostatic charge from your body.
3 Remove the Industrial Personal Computer from the control cabinet and follow
the steps in Industrial Personal Computer Installation (see page 52) in reverse
order.
4 Remove the 4 Torx screws (T10) marked in the following figure and slide the
cover plate up to remove it: