Lenovo NetVista A22 Hardware Maintenance Manual (HMM) for NetVista 2254, 2256, - Page 101

POST error codes Each time you power-on the system, it performs a series of tests that check the operation of the system and some options. This series of tests is called the Power-On Self-Test, or POST. POST does the following operations. v Checks some basic system-board operations v Checks the memory operation v Starts the video operation v Verifies that the diskette drive is working v Verifies that the hard disk drive is working If the POST finishes without detecting any problems, a single beep sounds and the first screen of the operating system or application program appears. Note: Type 2254, 2256, 2257, 6336, 6337, 6339, 6341, 6342, 6346, 6347, and 6348 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, do the following: 1. Select Start Options in the Configuration/Setup Utility program (see "Setup Utility program" on page 10). 2. Set Power-On Self-Test to Enhanced. If the POST detects a problem, an error message appears on the screen. A single problem can cause several error messages to appear. When you correct the cause of the first error message, the other error messages probably will not appear on the screen the next time you turn on the system. In the following index, X can represent any number. POST Error Code 000 SCSI Adapter not enabled 02X 08X Check SCSI terminator installation. 101 System board interrupt failure 102 System board timer error 106 110 System board memory parity error FRU/Action 1. Verify adapter device and Bus Master fields are enabled in PCI configuration program. See documentation shipped with computer. 1. SCSI Adapter 1. SCSI Cable 2. SCSI Terminator 3. SCSI Device 4. SCSI Adapter 1. System Board 1. System Board 1. System Board 1. Memory Module 2. System Board Chapter 6. Symptom-to-FRU Index 93