Lenovo H4 Series Hardware Maintenance Manual V2.0
Page 32
...'s technical support. This will reveal the malfunctioning card. 8 beeps If the system video adapter is causing the malfunction. Remove all expansion cards except the video adapter. • If beep codes are generated when all other expansion cards are absent, one at a time until the...beeps Fatal error indicating a serious Motherboard timer not operational problem with known good modules. 2 beeps Parity error in card, replace or reseat the adapter) video adapter. switch to protected mode) • If beep codes are not generated when all hope, eliminate the possibility...
...'s technical support. This will reveal the malfunctioning card. 8 beeps If the system video adapter is causing the malfunction. Remove all expansion cards except the video adapter. • If beep codes are generated when all other expansion cards are absent, one at a time until the...beeps Fatal error indicating a serious Motherboard timer not operational problem with known good modules. 2 beeps Parity error in card, replace or reseat the adapter) video adapter. switch to protected mode) • If beep codes are not generated when all hope, eliminate the possibility...
Lenovo H4 Series Hardware Maintenance Manual V2.0
Page 33
Before declaring the motherboard beyond all expansion 10 beeps cards except the video adapter. Symptom-to appear. CMOS shutdown register read/write • If beep codes are generated error when all other expansion cards Cache memory test failed are absent, consult your system manufacturer. A ...of interference by a malfunctioning add-in cards 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 check ...
Before declaring the motherboard beyond all expansion 10 beeps cards except the video adapter. Symptom-to appear. CMOS shutdown register read/write • If beep codes are generated error when all other expansion cards Cache memory test failed are absent, consult your system manufacturer. A ...of interference by a malfunctioning add-in cards 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 check ...