IBM 689912U Hardware Maintenance Manual - Page 24
General Checkout (Type 6275, 6285
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General Checkout (Type 6275, 6285, 6561, 6591, 6862, 6889, 6892, 6893) This general checkout procedure is for Type 6275, 6285, 6561, 6591, 6862, 6889, 6892, 6893 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 "Return Codes" on page 214. 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. Notes 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" on page 200. 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" on page 32. 4. If the computer hangs and no error is displayed, go to "Undetermined Problem" on page 81. 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" on page 220) then, enable Power On Status. 001 - Power-off the computer and all external devices. - Check all cables and power cords. - Make sure the system board is seated properly. (Step 001 continues) 14 IBM PC 300/700, IntelliStation Series HMM