Epson EQUITY 386SX/16 PLUS - Manual (Page 104)

5. Raise the front of the subassembly, as shown below.
6. Reach back underneath the subassembly and disconnect
the two power supply cables connected to the right side
of the main system board, as shown below. Pull each
connector straight up. Do not pull only on the cables.
5-20 Installing and Removing Options