答案1
注：原文出处为电脑希望，我在这里粘贴并美化了一些内容，以避免制作仅有链接的答案
常见 BIOS 蜂鸣代码列表：
AMI BIOS 蜂鸣代码
由于不同计算机制造商的 BIOS 种类繁多，因此蜂鸣代码可能会有所不同。
Beeps | Description
1 short | DRAM refresh failure
2 short | Parity circuit failure
3 short | Base 64K RAM failure
4 short | System timer failure
5 short | Process failure
6 short | Keyboard controller Gate A20 error
7 short | Virtual mode exception error
8 short | Display memory Read/Write test failure
9 short | ROM BIOS checksum failure
10 short | CMOS shutdown Read/Write error
11 short | Cache Memory error
1 long,
3 short | Conventional/Extended memory failure
1 long,
8 short | Display/Retrace test failed
two-tone
siren | Low CPU Fan speed, Voltage Level issue
AWARD BIOS 蜂鸣代码
由于不同计算机制造商的 BIOS 种类繁多，因此蜂鸣代码可能会有所不同。
Beeps | Description
1 long,
2 short | Indicates a video error has occurred and the BIOS cannot
| initialize the video screen to display any additional
| information.
Other
beeps | RAM problem.
如果发现任何其他可纠正的硬件问题，BIOS 将显示一条消息。
戴尔蜂鸣代码
Beep Code | Description
7 beeps (repeated) | Bad processor (CPU)
对于其他戴尔蜂鸣代码，请参阅戴尔的蜂鸣代码和 PSA 诊断图表页面。
IBM BIOS 蜂鸣代码
由于配备此 BIOS 的型号种类繁多，因此蜂鸣代码可能会有所不同。
Beeps | Description
No Beeps | No Power, Loose Card, or Short.
1 Short | Normal POST, computer is ok.
2 Short | POST error, review screen for error code.
Continuous
Beep | No Power, Loose Card, or Short.
Repeating
Short Beep | No Power, Loose Card, or Short.
One Long,
one Short | Motherboard issue.
One Long,
Two Short | Video (Mono/CGA Display Circuitry) issue.
One Long,
3 Short | Video (EGA) Display Circuitry.
Three Long | Keyboard or Keyboard card error.
One Beep,
Blank or
Incorrect
Display | Video Display Circuitry.