Lenovo ThinkPad 390X User's Reference for ThinkPad 390 - Page 67

Remove the DIMM.

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Increasing Memory Your computer displays the memory size in kilobytes. For example, 640 KB (system memory) + 64512 (extended memory) = 65152 KB. Removing the DIMM 1. Power off the computer an disconnect the AC Adapter and all cables from the computer. 2. Close the LCD, turn the computer over, and then remove the battery pack. 3. Loosen the screw and remove the memory slot cover. 4. Press out on the latches on both edges of the socket at the same time. 5. Remove the DIMM. Be sure to save the DIMM for future use. 6. Replace the memory slot cover; then tighten the screw. 7. Replace the battery pack. 8. Turn the computer over again; then connect the AC Adapter and all the cables you disconnected. Chapter 2. Extending the Features of Your Computer 51

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Increasing Memory
Your computer displays the memory size in kilobytes. For example,
640 KB (system memory) + 64512 (extended memory) = 65152 KB.
Removing the DIMM
1. Power off the computer an disconnect the AC Adapter and all
cables from the computer.
2. Close the LCD, turn the computer over, and then remove the
battery pack.
3. Loosen the screw and remove the memory slot cover.
4. Press out on the latches on both edges of the socket at the
same time.
5. Remove the DIMM.
Be sure to save the DIMM for future use.
6. Replace the memory slot cover; then tighten the screw.
7. Replace the battery pack.
8. Turn the computer over again; then connect the AC Adapter
and all the cables you disconnected.
Chapter 2.
Extending the Features of Your Computer
51