Analisa bunyi Beep pada Komputer

BEEP adalah suara yang timbul pada saat Komputer sedang booting.Pengertiannya adalah saat kita menghidupkan komputer, BIOS akan mengontrol komputer dan melakukan P.O.S.T (Power On Self Test). Setelah POST selesai komputer akan mengeluarkan suara ‘BEEP’ satu kali beep pendek berarti Komputer dalam kondisi Normal.

Tapi jika POST dari BIOS mengalami problem, yang dalam kondisi normal akan menampilkan visual error message di monitor. Jika problem terjadi sebelum BIOS inisialisasi video card atau video card tidak terdeteksi, maka BIOS akan mengeluarkan ‘BEEPS’ untuk mengetahui problem tersebut.

Sangatlah penting kita mengetahui arti dari ‘BEEP’ tersebut untuk pedoman dalam memperbaikinya. Di bawah ini table dari bermacam bios berikut indikasi kerusakannya.

AMI BIOS BEEP CODE
BEEP CODE	MEANING	POSSIBLE CAUSE
1 Beep (No video)	Memory refresh failure	Bad memory
2 Beeps	Memory parity error	Bad memory
3 Beeps	Base 64K mem failure	Bad memory
4 Beeps	Timer not operational	Bad motherboard
5 Beeps	Processor error	Bad processor
6 Beeps	8042 Gate A20 failure	Bad CPU or Motherboard
7 Beeps	Processor exception	Bad processor
8 Beeps	Video memory error	Bad video card or memory
9 Beeps	ROM checksum error	Bad BIOS
10 Beeps	CMOS checksum error	Bad motherboard
11 Beeps	Cache memory bad	Bad CPU or motherboard

Award BIOS Beep Codes
Award BIOS menggunakan beep dengan durasi yang berbeda. Beep panjang biasanya berdurasi 2 detik dan beep pendek berdurasi 1 detik. Selain itu Award BIOS, juga menggunakan frekuensi yang berbeda untuk masalah kritis, misalnya pada overheating CPU akan berbunyi beep frekuensi tinggi yang terus menerus pada saat komputer running.

AWARD BIOS BEEP CODE
BEEP CODE	MEANING	POSSIBLE CAUSE
1 Long, 2 Short	Video adapter failure	Bad memory
Repeating (Endless loop)	Memory error	Bad memory or bad connection
1 Long, 3 Short	Video adapter failure	Bad video adapter or memory
High freq. beeps (while running)	CPU is overheating	CPU fan failure
Repeating High, Low beeps	Processor error	Bad processor

Phoenix BIOS Beep Codes
Phoenix BIOS menggunakan beep code yang pasti untuk indikasi problem. Di tabel, tanda ‘-’ yang berarti pause diantara beep. Contohnya : 1 – 1 – 2 adalah BEEP BEEP BEEP BEEP

PHONIEX BIOS BEEP CODE
BEEP CODE	MEANING	POSSIBLE CAUSE
1 – 1 – 2	CPU / motherboard failure	Bad CPU / motherboard
1 – 1 – 3	CMOS read/write failure	Bad motherboard
1 – 1 – 4	BIOS ROM failure	Bad BIOS chip
1 – 2 – 1	Timer failure	Bad motherboard
1 – 2 – 2	DMA failure	Bad motherboard
1 – 2 – 3	DMA failure	Bad motherboard
1 – 3 – 1	Memory refresh failure	Bad memory
1 – 3 – 2	64K memory failure	Use a different brand of video card
1 – 3 – 3	64K memory failure	Bad memory
1 – 3 – 4	64K memory failure	Bad memory
1 – 4 – 1	Address line failure	Bad memory
1 – 4 – 2	Parity error	Bad memory
1 – 4 – 3	Timer failure	Bad motherboard
1 – 4 – 4	NMI port failure	Bad motherboard
2 – 1 – 1	64K memory failure	Bad memory
2 – 1 – 2	64K memory failure	Bad memory
2 – 1 – 3	64K memory failure	Bad memory
2 – 1 – 4	64K memory failure	Bad memory
2 – 2 – 1	64K memory failure	Bad memory
2 – 2 – 2	64K memory failure	Bad memory
2 – 2 – 3	64K memory failure	Bad memory
2 – 2 – 4	64K memory failure	Bad memory
2 – 3 – 1	64K memory failure	Bad memory
2 – 3 – 2	64K memory failure	Bad memory
2 – 3 – 3	64K memory failure	Bad memory
2 – 3 – 4	64K memory failure	Bad memory
2 – 4 – 1	64K memory failure	Bad memory
2 – 4 – 2	64K memory failure	Bad memory
2 – 4 – 4	64K memory failure	Bad memory
2 – 4 – 4	64K memory failure	Bad motherboard
3 – 1 – 1	Slave DMA failure	Bad motherboard
3 – 1 – 2	Master DMA failure	Bad motherboard
3 – 1 – 3	Interrupt controller failure	Bad motherboard
3 – 1 - 4	Slave IC failure	Bad motherboard
3 – 2 - 2	Interrupt Controller failure
3 – 2 – 3		Bad video card or memory
3 – 2 – 4	Keyboard control failure	Bad video card or memory
3 – 3 – 1	CMOS batter failure	Bad motherboard
3 – 3 – 2	CMOS configuration error	Bad motherboard
3 – 3 – 3		Bad motherboard
3 – 3 – 4	Video memory failure	Bad processor
3 – 4 – 1	Video init failure	Bad memory
4 – 2 – 1	Timer failure	Bad motherboard
4 – 2 – 2	CMOS shutdown failure	Bad motherboard
4 – 2 – 3	Gate A20 failure	Bad motherboard
4 – 2 – 4	Unexpected interrupt	Bad processor
4 – 3 – 1	RAM test failure	Bad memory
4 – 3 – 3	Timer failure	Bad motherboard
4 – 3 – 4	RTC failure	Bad motherboard
4 – 4 – 1	Serial port failure	Bad motherboard
4 – 4 – 2	Parallel port failure	Bad motherboard
4 – 4 – 3	Coprocessor failure	Bad CPU or motherboard
9 – 2 – 1	Video adapter incompatibility	Use a different brand of video card

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