Dell 4691901 owner manual Beep Codes, Code Cause Microprocessor register failure

Power Button

Problem Description Troubleshooting Steps

LED

Power Button

A possible system board resource and/or hardware failure has occurred.

•Clear CMOS.

•Disconnect all internal and external peripherals, and restart the computer. If the computer boots, add the peripheral cards back one by one until you find the bad one.

•If the problem persists, the system board / system board component is faulty.

Problem Description Troubleshooting Steps

Some other failure has occurred.

•Ensure that the display/monitor is plugged into a discrete graphic card.

•Ensure that all hard drives and optical drive cables are properly connected to the system board.

•If there is an error message on the screen identifying a problem with a device ( hard drive), check the device to make sure it is functioning properly.

•If the operating system is attempting to boot from a device (optical drive), check system setup to ensure the boot sequence is correct for the devices installed on your computer.

Beep Codes

The computer can emit a series of beeps during start-up if the display cannot show errors or problems. These series of beeps, called beep codes, identify various problems. The delay between each beep is 300 ms, the delay between each set of beeps is 3 sec, and the beep sound lasts 300 ms. After each beep and each set of beeps, the BIOS should detect if the user presses the power button. If so, BIOS will jump out from looping and execute the normal shutdown process and power system.

Code	1-1-2
Cause	Microprocessor register failure
Code	1-1-3
Cause	NVRAM
Code	1-1-4
Cause	ROM BIOS checksum failure
Code	1-2-1
Cause	Programmable interval timer

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