Acer Aspire X3990 Desktop Service Guide
Page 79
...using AMIBIOS enable this feature. Memory not installed or memory error. This display method is ready. CMOS damaged. One long beep then two short beep Two short beeps Cause and Description System is limited, since it only displays checkpoints that occur after the video card has been activated.... Chapter 4 71 Beep Symptom One short beep Continuous one long beep One long beep and two short beeps then repeat. In most cases, a checkpoint card is damaged, BIOS POST jumps to Boot Block to ...
...using AMIBIOS enable this feature. Memory not installed or memory error. This display method is ready. CMOS damaged. One long beep then two short beep Two short beeps Cause and Description System is limited, since it only displays checkpoints that occur after the video card has been activated.... Chapter 4 71 Beep Symptom One short beep Continuous one long beep One long beep and two short beeps then repeat. In most cases, a checkpoint card is damaged, BIOS POST jumps to Boot Block to ...