Some number of short beeps that are sounded by the BIOS upon startup when a memory, cache or processor error is encountered. There are numerous beep code patterns, and Phoenix BIOS codes are long and short beeps delivered in groups. The following beep codes are for AMI BIOSs. There are additional beep codes for this BIOS not included here. See BIOS and POST card. 1 Beep - Refresh Failure Reseat/replace memory, troubleshoot motherboard. 2 Beeps - Parity Error Reseat/replace memory, troubleshoot motherboard. 3 Beeps - Memory Error (first 64KB) Reseat/replace memory. 4 Beeps - Timer Failure Troubleshoot motherboard. 5 Beeps - Processor Failure Troubleshoot CPU, motherboard. 6 Beeps - Keyboard Controller Failure Troubleshoot keyboard, motherboard. 7 Beeps - Virtual Mode Exception Error Troubleshoot CPU, motherboard. 8 Beeps - Display Memory Failure Trouleshoot graphics card, motherboard. 9 Beeps - ROM BIOS Checksum Failure Replace ROM BIOS, troubleshoot motherboard. 10 Beeps - CMOS Shutdown Register Failure Troubleshoot motherboard. 11 Beeps - L2 Cache Failure Troubleshoot L2 cache, motherboard. Continuous Beeps - Memory or Video Failure Troubleshoot memory, graphics card, motherboard.