Dell T310 owner manual 1. Diagnostic Indicator Codes

Table 1-1. Diagnostic Indicator Codes

Code Causes Corrective Action

The system is in a normal off condition or a possible pre-BIOS failure has occurred.

The diagnostic lights are not lit after the system successfully boots to the operating system.

Plug the system into a working electrical outlet and press the power button.

The system is in a normal	Information only.
operating condition after
POST.
BIOS checksum failure	See "Getting Help" on page 177.
detected; system is in
recovery mode.
Possible processor failure. See "Troubleshooting the
	Processor" on page 163.
Memory failure.	See "Troubleshooting System
	Memory" on page 155.
Possible expansion card	See "Troubleshooting Expansion
failure.	Cards" on page 162.
Possible video failure.	See "Getting Help" on page 177.
Hard drive failure.	Ensure that the diskette drive and
	hard drive are properly connected.
	See "Hard Drives" on page 90 for
	information on the drives
	installed in your system.
Possible USB failure.	See "Troubleshooting a USB
	Device" on page 148.

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