Справочник Пользователя для Intel D975XBX

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Desktop Board D975XBX reports POST errors in two ways: 
•  By sounding a beep code 
•  By displaying an error message on the monitor 

The BIOS beep codes are listed in Table 10.  The BIOS also issues a beep code (one long tone 
followed by two short tones) during POST if the video configuration fails (a faulty graphics card or 
no card installed) or if an external ROM module does not properly checksum to zero. 

3 No 

memory 

Siren 

CPU overheat (on reboot) 

When a recoverable error occurs during the POST, the BIOS displays an error message describing 
the problem. 

PROCESSOR_THERMAL_TRIP_ERROR 

CPU was previously shutdown due to a thermal event 
(overheating). 

MULTI_BIT_ECC_ERROR 

The firmware has detected that a Multi-Bit ECC Error occurred. 

SINGLE_BIT_ECC_ERROR 

The firmware has detected that a Single-Bit ECC Error occurred. 

CMOS_BATTERY_ERROR 

The firmware has detected that a CMOS battery failure occurred.

CMOS_CHECKSUM_ERROR 

The firmware has detected that a CMOS Checksum Error 
occurred. 

CMOS_TIMER_ERROR 

The firmware has detected that the system date/time has not 
been set. 

MEMORY_SIZE_DECREASE_ERROR 

The firmware has detected that the system memory has 

decreased. 

INTRUDER_DETECTION_ERROR The 

system chassis was opened. 

SPD_TOLER_ERROR 

SERIAL PRESENCE DETECT (SPD) device data missing or 
inconclusive.  Properly programmed SPD device data is required 
for reliable operation.  DDR2 533 MHz memory assumed at 
slowest timings. 

MEM_OPTIMAL_ERROR 

The installed amount of memory in Channel A is not equal to the 
amount of memory in Channel B.  Maximum memory 
performance is achieved with equal amounts of memory 
installed in each channel.