A Error Messages and Indicators
Desktop Board DX48BT2 reports POST errors in two ways:
•By sounding a beep code
•By displaying an error message on the monitor
BIOS Beep Codes
The BIOS also issues a beep code (one long tone followed by two short tones) during POST if the video configuration fails (a faulty video card or no card installed) or if an external ROM module does not properly checksum to zero. Table 15 lists the BIOS codes.
Table 15. Beep Codes
Beep | Description |
|
|
3 | No memory |
|
|
Siren | Processor overheat (on reboot) |
|
|
BIOS Error Messages
When a recoverable error occurs during the POST, the BIOS displays an error message describing the problem. Table 16 gives an explanation of the BIOS error messages.
Table 16. BIOS Error Messages
Error Message | Explanation |
|
|
PROCESSOR_THERMAL_TRIP_ERROR | Processor was previously shutdown due to a thermal event |
| (overheating). |
|
|
MULTI_BIT_ECC_ERROR | The firmware has detected that a |
|
|
SINGLE_BIT_ECC_ERROR | The firmware has detected that a |
|
|
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. |
|
|
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. |
|
|
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