Error code
ASUS A9
ASUSA9
POST Code· Shown on the motherboard's 2-digit Debug Display during boot.
What it means
Boot into the BIOS.
How to fix it
- Check monitor connection and settings.
- Confirm hard disk or SSD is not abnormal.
Not affiliated with ASUS. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More ASUS codes
- 00CPU abnormal
- 02Keyboard controller error
- 03Memory test failure
- 06Hard drive error
- 07Memory test failure (fourth test)
- 10Memory test failure (thirteenth test)
- 11Memory test failure (fourteenth test)
- 12Memory test failure (fifteenth test)
- 18USB error
- 19Fan error
- 50Incompatibility between motherboard and RAM
- 53Memory abnormal