Lenovo ThinkPad 390X User's Reference for ThinkPad 390 - Page 66

Config, Enter, How to Calculate Total Memory Size, enter the BIOS Setup Utility.

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Increasing Memory 6. Replace the battery pack. 7. Turn the computer over again, power on the computer. 8. Confirm that the new memory size is detected: a. Press F1 while the IBM ThinkPad logo is being displayed to enter the BIOS Setup Utility. b. Select Config and press Enter. c. Verify the values in the memory section (see page 50). 9. You have finished installing the DIMM. Reconnect all cables. Notes: 1. If the total memory size is not the same as the value you calculated, power off the computer and go to page 48 to reinstall the DIMM. 2. If you changed the memory installed in the computer, you need to create a new hibernation file. To create the hibernation file "Creating the Hibernation Function" on page 37 or "Basic" in the Online User's Guide. How to Calculate Total Memory Size Calculate your total memory size in kilobytes (KB) by adding the DIMM memory size to the base memory size (32384 KB for a computer with 32 MB base memory). Note: 384 KB is reserved by the system. For example, if you installed a 32MB DIMM to a computer with 32 MB base memory, you should have about 64 MB. 50 ThinkPad 390 User's Reference

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Increasing Memory
6. Replace the battery pack.
7. Turn the computer over again, power on the computer.
8. Confirm that the new memory size is detected:
a. Press
F1
while the IBM ThinkPad logo is being displayed to
enter the BIOS Setup Utility.
b. Select
Config
and press
Enter
.
c. Verify the values in the memory section (see page 50).
9. You have finished installing the DIMM. Reconnect all cables.
Notes:
1. If the total memory size is not the same as the value you calcu-
lated, power off the computer and go to page 48 to reinstall the
DIMM.
2. If you changed the memory installed in the computer, you need
to create a new hibernation file. To create the hibernation file
“Creating the Hibernation Function” on page
37 or "Basic" in
the Online User's Guide.
How to Calculate Total Memory Size
Calculate your total memory size in kilobytes (KB) by adding the
DIMM memory size to the base memory size (32384 KB for a com-
puter with 32 MB base memory).
Note:
384 KB is reserved by the system.
For example, if you installed a 32MB DIMM to a computer with 32
MB base memory, you should have about 64 MB.
50
ThinkPad 390 User's Reference