Texas Instruments 3000 - Manual (Page 101)

RAM Modules
3. Repeat steps 1 and 2 for the remaining three modules in the set, except
insert the second module into socket XU10, the third module into socket
XU12, and the fourth module into socket XU13.
4. If you are installing four more RAM modules, insert the first one in
socket XU14, the second in XU15, the third in XU16, and the fourth in
XU17.
5. Replace the keyboard as described in the next section.
Replacing the Keyboard
Replace the keyboard into the computer case as follows.
1. Rotate the keyboard right side up and insert the three tabs on the front
side of the keyboard panel into the three matching slots on the computer
case.
6-6 TravelMate 3000 Options