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Alert! Previous attempts at booting this system have failed at checkpoint [nnnn]. For help in resolving this problem, please note this checkpoint and
contact Dell Technical Support — The computer failed to complete the boot routine three consecutive times for the same error (see Contacting Dell for
assistance).
CMOS checksum error — Possible motherboard failure or RTC battery low. Replace the battery (see Coin-Cell Battery or see Contacting Dell for assistance).
CPU fan failure — Replace the CPU fan (see Removing the Hard Drive Fan).
Diskette Drive 0 seek failure — A cable may be loose, or the computer configuration information may not match the hardware configuration. Check HDD cable
connections, if installed (Removing the Hard Drive Bracket Assembly) and reseat the NVRAM module, if installed (see Removing the NVRAM Module).
Diskette read failure — The floppy disk may be defective or a cable may be loose. Check the cable connections to the floppy disk device.
Hard-disk read failure — Possible HDD failure during HDD boot test (see Contacting Dell for assistance). Check HDD cable connections, if installed (Removing
the Hard Drive Bracket Assembly) and reseat the NVRAM module, if installed (see Removing the NVRAM Module)
Keyboard failure — Keyboard failure or keyboard cable loose (see Keyboard Problems).
No boot device available — The system cannot detect a bootable device or partition.
l If the NVRAM module is your boot device, ensure that it is properly seated (see NVRAM Module).
l If the floppy drive is your boot device, ensure that the cables are connected and that a bootable floppy disk is in the drive.
l If the hard drive is your boot device, ensure that the cables are connected and that the drive is installed properly and partitioned as a boot device (see
Hard Drive Assembly (Optional)).
l Enter the BIOS Setup Utility and ensure that the boot sequence information is correct (see Entering the BIOS Setup Utility).
No timer tick interrupt — A chip on the system board might be malfunctioning or motherboard failure (see Contacting Dell for assistance).
Non-system disk or disk error — Replace the floppy disk with one that has a bootable operating system or remove the floppy disk and restart the computer.
normally, continue to install additional memory modules (one at a time) until you have identified a faulty
module or reinstalled all modules without error.
l If available, install working memory of the same type into your computer (see Memory).
l If the problem persists, contact Dell (see Contacting Dell).
3
Possible system board
failure.
Time-Of-Day Clock test
failure
Keyboard controller test
failure
l If the problem persists, contact Dell (see Contacting Dell).
4
RAM Read/Write failure.
l Ensure that no special requirements for memory module/connector placement exist (see Memory).
l Ensure that the memory you are using is supported by your computer (see Memory).
l If the problem persists, contact Dell (see Contacting Dell).
5
Real time clock failure.
Possible battery or
system board failure.
l Replace the battery (see Replacing the Coin-Cell Battery).
l If the problem persists, contact Dell (see Contacting Dell).
6
Video BIOS Test Failure.
l Contact Dell (see Contacting Dell).
7
CPU Cache test failure
l Contact Dell (see Contacting Dell).
NOTE: If the message you received is not included below, see the documentation for either the operating system or the program that was running
when the message appeared.