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 acuan dalam memperbaikinya. Ini adalah tabel AMI, Phoenix dan Award BIOS beep codes.
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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.
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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 |
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