IBM 2621483 User Guide - Page 73

Startup Configuration, Enter, Fast Boot, How to Calculate Total Memory Size, Removing a DIMM

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Increasing Memory 8. Confirm that the new memory size is detected: a. While the ThinkPad logo is being displayed, wait for the BIOS Utility prompt before pressing F1. b. Select Startup Configuration and press Enter. c. Disable Fast Boot. d. Save the changes and exit the BIOS Utility. e. Verify the memory value (shown near the top left corner of the screen) when the computer restarts. Note: After you have verified the memory value, shutdown and restart the computer. Enter the BIOS Utility to enable Fast Boot. 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 see pages 57 and 55 to reinstall the DIMM. 2. If you changed the memory installed in the computer, Sleep Manager automatically updates the hibernation file (see "Sleep Manager" on page 35). 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. Your computer displays the memory size in kilobytes. For example, 640 KB (system memory) + 64512 (extended memory) = 65152 KB. Removing a DIMM If you need to remove a DIMM, follow these steps: Extending the Features of Your Computer 57

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Increasing Memory
8. Confirm that the new memory size is detected:
a. While the ThinkPad logo is being displayed, wait for the
BIOS Utility prompt before pressing
F1
.
b. Select
Startup Configuration
and press
Enter
.
c. Disable
Fast Boot
.
d. Save the changes and exit the BIOS Utility.
e. Verify the memory value (shown near the top left corner of
the screen) when the computer restarts.
Note:
After you have verified the memory value, shutdown
and restart the computer.
Enter the BIOS Utility to
enable Fast Boot.
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 see pages 57 and 55 to
reinstall the DIMM.
2. If you changed the memory installed in the computer, Sleep
Manager automatically updates the hibernation file (see “Sleep
Manager” on page
35).
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.
Your computer displays the memory size in kilobytes. For example,
640 KB (system memory) + 64512 (extended memory) = 65152 KB.
Removing a DIMM
If you need to remove a DIMM, follow these steps:
Extending the Features of Your Computer
57