Lenovo H430 Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 33

Chapter 7. Symptom-to-FRU Index Beep Symptom FRU/Action 9 beeps Fatal error indicating a serious AMIBIOS ROM checksum error problem with the system. Consult your system manufacturer. Before declaring the motherboard beyond all hope, eliminate the possibility of interference by a malfunctioning add-in card. Remove all expansion 10 beeps cards except the video adapter. CMOS shutdown register read/write • If beep codes are generated error when all other expansion cards are absent, consult your system manufacturer's technical support. • If beep codes are not generated 11 beeps when all other expansion cards Cache memory test failed are absent, one of the add-in cards is causing the malfunction. Insert the cards back into the system one at a time until the problem happens again. This will reveal the malfunctioning card. 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. • Checks some basic system-board operations • Checks the memory operation • Starts the video operation • Verifies that the boot drive is working 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. 31