Dell Vostro 2521 Owner's Manual
Page 44
... is connected to your laptop. Fatal battery failure with steady blue light Constantly blinking amber light An unauthenticated or unsupported non-Dell AC adapter is enabled. The lights located above the keyboard indicate the following: Table 8. Beep Codes The computer may emit... , Time-Of-Day Clock test failure , Gate A20 failure , Super I/O chip failure , Keyboard controller test failure System board failure 4 RAM Read/Write failure 44 Code 1 Cause and Troubleshooting Steps BIOS ROM checksum in full charge mode with AC adapter present. Temporary battery failure with...
... is connected to your laptop. Fatal battery failure with steady blue light Constantly blinking amber light An unauthenticated or unsupported non-Dell AC adapter is enabled. The lights located above the keyboard indicate the following: Table 8. Beep Codes The computer may emit... , Time-Of-Day Clock test failure , Gate A20 failure , Super I/O chip failure , Keyboard controller test failure System board failure 4 RAM Read/Write failure 44 Code 1 Cause and Troubleshooting Steps BIOS ROM checksum in full charge mode with AC adapter present. Temporary battery failure with...
Dell Vostro 2521 Owner's Manual
Page 45
... Code 1 Cause and Troubleshooting Steps System board: BIOS ROM failure System board failure, covers BIOS corruption or ROM error 2 Memory No memory/RAM detected 3 Chipset Error (North and South Bridge Chipset, DMA/IMR/ Timer Error) , Time-Of-Day Clock test failure , Gate A20 failure... , Super I/O chip failure , Keyboard controller test failure System board failure 4 RAM Read/Write failure Memory failure 5 Real-time clock power fail CMOS battery failure 6 Video BIOS test failure Video card failure 7 CPU - Code 5 6...
... Code 1 Cause and Troubleshooting Steps System board: BIOS ROM failure System board failure, covers BIOS corruption or ROM error 2 Memory No memory/RAM detected 3 Chipset Error (North and South Bridge Chipset, DMA/IMR/ Timer Error) , Time-Of-Day Clock test failure , Gate A20 failure... , Super I/O chip failure , Keyboard controller test failure System board failure 4 RAM Read/Write failure Memory failure 5 Real-time clock power fail CMOS battery failure 6 Video BIOS test failure Video card failure 7 CPU - Code 5 6...