Beep Codes Untuk Mendeteksi Error Hardware Di CPU

Ketika 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 untuk mengetahui bahwa pengetesan
sukses.
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.

Berikut ini adalah Beep Codes yang digunakan oleh beberapa BIOS :

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.

BEEP CODE MEANING POSSIBLE CAUSE 1 Long, 2 Short Video adapter failure Bad video adapter 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 CPU failure 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 <pause> BEEP <pause> BEEP BEEP

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	Bad memory
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 memory
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	Bad motherboard
3 – 2 – 3	<RESERVED>
3 – 2 – 4	Keyboard control failure	Bad motherboard
3 – 3 – 1	CMOS batter failure	Bad CMOS battery
3 – 3 – 2	CMOS configuration error	Incorrect setting
3 – 3 – 3	<RESERVED>
3 – 3 – 4	Video memory failure	Bad video card or memory
3 – 4 – 1	Video init failure	Bad video card or 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 motherboard or CPU.
9 – 2 – 1	Video adapter incompatibility	Use a different brand of video card

AMI (American Megatrends International) BIOS Beep Codes.
AMI BIOS menggunakan beep yang sama panjang dan berurutan. Error diketahui
dari banyaknya beep. Contohnya 4 beeps mengindikasikan timer gagal.

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