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4 Error Messages and Beep Codes

What This Chapter Contains

4.1 Speaker ......................................................................................... 67

4.2 BIOS Beep Codes ............................................................................ 67

4.3 BIOS Error Messages ....................................................................... 67

4.4 Port 80h POST Codes ....................................................................... 68

4.1 Speaker

The board-mounted speaker provides audible error code (beep code) information

during POST.

For information about Refer to

The location of the onboard speaker Figure 1, page 12

4.2 BIOS Beep Codes

Whenever a recoverable error occurs during POST, the BIOS displays an error

message describing the problem (see Table 36).

Table 36.

Beep Codes

Type Pattern Frequency

Memory error Three long beeps 1280 Hz

Thermal warning Four alternating beeps:

High tone, low tone, high tone, low tone

High tone: 2000 Hz

Low tone: 1600 Hz

4.3 BIOS Error Messages

Table 37 lists the error messages and provides a brief description of each.

Table 37. BIOS Error Messages

Error Message Explanation

CMOS Battery Low The battery may be losing power. Replace the battery soon.

CMOS Checksum Bad The CMOS checksum is incorrect. CMOS memory may have been

corrupted. Run Setup to reset values.

Memory Size Decreased Memory size has decreased since the last boot. If no memory

was removed, then memory may be bad.

No Boot Device Available System did not find a device to boot.

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American Audio Q-MX1 Spezifikationen Seite 67