General checkout - PC 300 - 6563/6564/6565/6574/6868/6878

General checkout - PC 300 - 6563/6564/6565/6574/6868/6878

Note: Service information is the same for types 6563/6564/6565/6574/6868/6878 computers, unless specifically identified as type 6563 which is the desktop computer.

Note: This manual and the diagnostic tests are intended to test only IBM products.
Non-IBM products of any kind including adapter cards, accelerator boards, options, or non-IBM devices, can give false errors and invalid computer responses.
If you remove a non-IBM device and the symptom goes away, the problem is with the device you removed.

This general checkout procedure is for Type 6563/6564/6565/6574/6868/6878 computers.

  -Attention- The drives in the computer you are servicing might have been rearranged or the drive startup sequence changed.
Be extremely careful during write operations such as copying, saving, or formatting.
Data or programs can be overwritten if you select an incorrect drive.

Diagnostic error messages appear when a test program finds a problem with a hardware option.
For the test programs to properly determine if a test Passed, Failed, or Aborted, the test programs check the error-return code at test completion.
See 'IBM PC Enhanced Diagnostics'.

General error messages appear if a problem or conflict is found by an application program, the operating system, or both.
For an explanation of these messages, refer to the information supplied with that software package.


  1.  Before replacing any FRUs, ensure the latest level of BIOS is installed on the system.
     A down-level BIOS might cause false errors and unnecessary replacement of the system board.
     For more information on how to determine and obtain the latest level BIOS, see BIOS Levels.
  2.  If multiple error codes are displayed, diagnose the first error code displayed.
  3.  If the computer hangs with a POST error, go to Symptom-to-FRU index.
  4.  If the computer hangs and no error is displayed, go to Undetermined Problems.
  5.  If an installed device is not recognized by the diagnostics program, that device might be defective.

The power-on default is quick bring-up.
To enable Enhanced bring-up, select the Start Options in the Configuration/Setup Utility program (see 'Setup Utility Program') then, enable Power On Status.

 - Power-off the computer and all external devices.
 - Check all cables and power cords.
 - Make sure the system board is seated properly.
 - Set all display controls to the middle position.
 - Insert the IBM PC Enhanced Diagnostics diskette into drive A.
 - Power-on all external devices.
 - Power-on the computer.
 - Check for the following response:
    1. Readable instructions or the Main Menu.
  Note: Type 6563/6564/6574 computers default to come up quiet
       (No beep and no memory count and checkpoint code display) when no errors are
       detected by POST.
       To enable Beep and memory count and checkpoint code display when a successful
       POST occurs:
       ° Enable Power on Status in setup. See 'Setup Utility Program'.
  Yes    No |002| If the Power Management feature is enabled, do the following:
   |        +---+
   |              1. Start the Configuration/Setup Utility program (see 'Setup Utility Program')
   |              2. Select Power Management from the Configuration/Setup Utility program menu.
   |              3. Select APM
   |              4. Be sure APM BIOS Mode is set to Disabled.
   |                 If it is not, press Left Arrow (<) or Right Arrow (>)
   |                 to change the setting.
   |              5. Select Automatic Hardware Power Management.
   |              6. Set Automatic Hardware Power Management to Disabled.
   |                 -- or --
   |                 Go to the 'IBM PC Enhanced Diagnostics'.
 Run the IBM PC Enhanced Diagnostics test.
 If necessary, refer to 'Diagnostics and test information'.
  ° If you receive an error, replace the part that the diagnostic program calls out
    or go to 'IBM PC Enhanced Diagnostics'.
  ° If the test stops and you cannot continue, replace the last device tested.
  ° If the computer has incorrect keyboard responses, go to 'Keyboard'.
  ° If the printer has incorrect responses, go to 'Printer'.
  ° If the display has problems such as jittering, rolling, shifting, or being
    out of focus, go to 'Display'.

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