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11. To replace the cover, see "Replacing the cover and connecting the cables" on
12. Reconnect the external cables and power cords; then, turn on the attached
Installing a microprocessor
Before you install a second microprocessor on a computer with a preinstalled
operating system, do the following:
Notes:
1. Always check the IBM web site at http://www.ibm.com/pc/support for the latest
2. Be sure to check the cache size, type, and speed of the microprocessor that is
Installing a second microprocessor on Windows NT
If Windows NT is preinstalled on the computer, follow these steps:
1. Backup the hard disk.
2. Run the Multiprocessor Upgrade Option program, addcpu.exe, located at
3. Continue with step 1 of "Second microprocessor installation" on page 62.
Installing a second microprocessor on Windows 2000
If Windows 2000 is preinstalled on the computer, follow these steps:
Note: Be sure to check the Microsoft web page at http://www.microsoft.com for
1. Backup the hard disk.
2. Do the following:
page 65.
devices and the computer.
level of diagnostics code before running the diagnostic program.
currently in the computer before installing a second microprocessor. The second
microprocessor must be of the same cache size, type, and speed as the
microprocessor currently in the computer. Do not install two microprocessors of
different cache size, type, and speed.
Use the System Summary option on the Configuration/Setup Utility main menu
to view the processor speed and other information about the computer. For
information on how to start the Configuration/Setup Utility and additional
information on configuring the computer, see "Configuration" on page 33.
http://www.ibm.com/pc/support before you install the second microprocessor.
From the IBM support page, type addcpu in the Search field and press Enter.
In addition, download and read the addcpu.pdf file for instructions on adding a
second microprocessor.
updates to these instructions. From the Microsoft web page, type
multiprocessor support in the Search field and press Enter.
a. From the desktop, click Start--->Settings--->Control Panel.
b. On the Control Panel window, double-click the System icon.
c. On the System Properties window, select the Hardware tab; then, click the
Device Manager button.
d. On the Device Manager window, click on the plus sign (+) next to the
Computer node to expand the list; then, double-click on ACPI Uniprocessor
PC.
e. On the Advanced Configuration and Power Interface (ACPI) PC Properties
window, select the Driver tab; then, click the Update Driver button.
f. On the Update Device Driver Wizard window, click Next.
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Installing options
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