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System Board V66XA
USB
Universal Serial Bus (USB) is a new serial bus design that is capable of cascading low-/medium-
speed peripherals (less than 12 Mbps) such as a keyboard, mouse, joystick, scanner, printer and
modem/ISDN. With USB, complex cable connections at the back panel of your PC can be
eliminated.
The board comes with two USB ports. See Figure 3 or Figure 4 for the location of the ports.
Error Messages
In the event that you receive an error message, do not continue using the computer. Note the
message and take corrective action immediately. This section describes the different types of error
messages and suggests corrective measures.
There are two general types of error messages:
•
Software
•
System
Software Error Messages
Software error messages are returned by your operating system or application. These messages
typically appear after you boot the operating system or when you run your applications. If you
receive this type of message, consult your application or operating system manual for help.
System Error Messages
A system error message indicates a problem with the computer itself. These messages normally
appear during the power-on self-test, before the operating system prompt appears.
Error Message
Memory Error at MMMM:SSSS:OOOOh
(R:xxxxh, W:xxxxh)
System Management Memory Bad
Keyboard Interface Error
Keyboard Error or Keyboard Not Connected
Pointing Device Error
Pointing Device Interface Error
Pointing Device IRQ Conflict
58 - English
Corrective Action
Replace the DRAM chips or the DIMMs.
Replace the DRAM chips or the DIMMs.
Check the keyboard interface circuit or change
the keyboard.
Reconnect or replace the keyboard.
Reconnect or replace the pointing device.
Check the keyboard interface circuit.
Enter SETUP and change the setting of IRQ12.
USB
A26361-K535-Z120-1-7419
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