Sering kali komputer terjadi permasalahan yang terkadang kita sendiri tidak tahu apa permasalahan tersebut, sebenarnya BIOS telah memeberitahukan tentang permasalahan yang terjadi pada komputer ketika komputer sedang bermasalah, nah untuk mengetahuinya anda dapat mempelajari dengan mengenal bunyi pada saat komputer terjadi permasalahan atau yang dikenal sebagai beep code, untuk mempelajari jenis-jenis beepcode anda tidak dapat mempelajarinya pada satu sumber saja, tetapi anda bisa mencoba mempelajari beepcode dari beberapa sumber Manufaktur BIOS seperti, IBM Bios, AMI Bios, Award & Phonix

IBM BIOS
- Beep 1x pendek : Normal POST - no error
- Beep 2x pendek : POST error - see screen for error code
- Tanpa Beep : Power missing, loose card or short circuit
- Beep Berulang-ulang : Power missing, loose card or short circuit
- Beep Pendek Berulang-ulang : Power missing, loose card or short circuit
- Beep 1x panjang & Beep 1x pendek : System board error
- Beep 1x panjang & Beep 2x pendek : Video (mono/CGA display adapter)
- Beep 1x panjang & Beep 3x pendek : Video (EGA display adapter)
- Beep 3x pendek : Keyboard error
- Beep1x,Tampilan Monitor Blank :Video display circuitry

AMI BIOS

- Beep 1x pendek : DRAM refresh failure
- Beep 2x pendek : Parity circuit failure
- Beep 3x pendek : Base memory (64k) RAM failure
- Beep 4x pendek : System timer failure
- Beep 5x pendek : CPU failure
- Beep 6x pendek : Keyboard controller error
- Beep 7x pendek : Virtual mode exception error
- Beep 8x pendek : Display memory failure
- Beep 9x pendek : ROM BIOS checksum failure
- Beep 1x panjang & Beep 3x pendek :Base/extended memory failure
- Beep 1x panjang & Beep 8x pendek :Display/retrace test failure

Award BIOS
- Beep 1x pendek :No error during POST
- Beep 2x pendek :Any non-fatal error
- Beep 1x panjang & Beep 2x pendek : Video error
- Beep 1x panjang & Beep 3x pendek :Keyboard controller error

Phoenix BIOS
-One, one and three beeps :CMOS read/write failure
-One, one and four beeps :ROM BIOS checksum failure
-One, two and one beep :Programmable interval timer failure
-One, two and two beeps :DMA initialisation failure
-One, two and three beeps :DMA page register read/write failure
-One, three and one beep :RAM refresh verification error
-One, three and three beeps :First 64k RAM chip/data line failure
-One, three and four beeps :First 64k odd/even logic failure
-One, four and one beep :Address line failure first 64k RAM
-One, four and two beeps :Parity failure first 64k RAM
-One, four and three beeps :Fail-safe timer feature (EISA only)
-One, four and four beeps :Software NMI port failure (EISA only)
-Two, one and up to four beeps :First 64k RAM chip/data line failure (bits
0 to 3 respectively)
-Two, two and up to four beeps :First 64k RAM chip/data line failure (bits
4 to 7 respectively)
-Two, three and up to four beeps :First 64k RAM chip/data line failure (bits
8 to 11 respectively)
-Two, four and up to four beeps :First 64k RAM chip/data line failure (bits
12 to 15 respectively)
-Three, one and one beep :Slave DMA register failure
-Three, one and two beeps :Master DMA register failure
-Three, one and three beeps :Master interrupt mask register failure
-Three, one and four beeps :Slave interrupt register failure
-Three, two and four beeps :Keyboard controller test failure
-Three, three and four beeps :Screen initialisation failure
-Three, four and one beep :Screen retrace test failure
-Four, two and one beep :Timer tick failure
-Four, two and two beeps :Shutdown test failure
-Four, two and three beeps :Gate A20 failure
-Four, two and four beeps :Unexpected interrupt in protected mode
-Four, three and one beep :RAM text address failure
-Four, three and three beeps :Interval timer channel 2 failure
-Four, three and four beeps :Time of day clock failure
-Four, four and three beeps :Maths coprocessor failure