Intel D915GAG User Manual

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When a recoverable error occurs during the POST, the BIOS displays an error message describing 
the problem.  Table 17 gives an explanation of the BIOS error messages. 

GA20 Error 

An error occurred with Gate-A20 when switching to protected 
mode during the memory test.  

Pri Master HDD Error  
Pri Slave HDD Error  
Sec Master HDD Error 
Sec Slave HDD Error 

Could not read sector from corresponding drive. 

Pri Master Drive - ATAPI Incompatible 
Pri Slave Drive - ATAPI Incompatible 
Sec Master Drive - ATAPI Incompatible 
Sec Slave Drive - ATAPI Incompatible 

Corresponding drive is not an ATAPI device.  Run Setup to make 
sure device is selected correctly. 

A: Drive Error 
B: Drive Error 

No response from the diskette drive. 

CMOS Battery Low 

The battery may be losing power.  Replace the battery soon. 

CMOS Display Type Wrong 

The display type is different than what has been stored in CMOS.  
Check Setup to make sure type is correct. 

CMOS Checksum Bad 

The CMOS checksum is incorrect.  CMOS memory may have been 
corrupted.  Run Setup to reset values. 

CMOS Settings Wrong 

CMOS values are not the same as the last boot.  These values 
have either been corrupted or the battery has failed. 

CMOS Date/Time Not Set 

The time and/or date values stored in CMOS are invalid.  Run 
Setup to set correct values. 

DMA Error 

Error during read/write test of DMA controller. 

FDC Failure 

Error occurred trying to access diskette drive controller. 

HDC Failure 

Error occurred trying to access hard disk controller. 

Checking NVRAM..... 

NVRAM is being checked to see if it is valid. 

Update OK! 

NVRAM was invalid and has been updated. 

Updated Failed 

NVRAM was invalid but was unable to be updated. 

Keyboard Is Locked 

The system keyboard lock is engaged.  The system must be 
unlocked to continue to boot. 

Keyboard Error 

Error in the keyboard connection.  Make sure keyboard is 
connected properly. 

KB/Interface Error 

Keyboard interface test failed. 

continued