Beep Codes - Dell Dimension 3100/E310 Service Manual

Beep Codes
Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies
a problem. One possible beep code (code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells you that the computer
encountered a memory problem.
If your computer beeps during start-up:
1. Write down the beep codes.
2. Run the Dell Diagnostics to identify a more serious cause.
3. Contact Dell for technical assistance.
Code
1-1-2
1-1-3
1-1-4
1-2-1
1-2-2
1-2-3
1-3
1-3-1 through 2-4-4 Memory not being properly identified or used
3-1-1
3-1-2
3-1-3
3-1-4
3-2-2
3-2-4
3-3-1
3-3-2
3-3-4
3-4-1
3-4-2
3-4-3
4-2-1
4-2-2
4-2-3
4-2-4
4-3-1
4-3-3
4-3-4
4-4-1
4-4-2
4-4-3
4-4-4
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During normal operation, all of the diagnostic lights turn
on and then turn off before the system starts.
If all four diagnostic lights stay on and the power button
remains amber, a possible processor power or
connection error has occurred.
NOTE: If all of the diagnostic lights turn on then off and
the system does not start, there may be a problem with
the power supply or with the processor. For other
possible solutions, see "Power Problems" in your
Owner's Manual.
Cause
Microprocessor register failure
NVRAM read/write failure
ROM BIOS checksum failure
Programmable interval timer failure
DMA initialization failure
DMA page register read/write failure
Video Memory Test failure
Slave DMA register failure
Master DMA register failure
Master interrupt mask register failure
Slave interrupt mask register failure
Interrupt vector loading failure
Keyboard Controller Test failure
NVRAM power loss
Invalid NVRAM configuration
Video Memory Test failure
Screen initialization failure
Screen retrace failure
Search for video ROM failure
No timer tick
Shutdown failure
Gate A20 failure
Unexpected interrupt in protected mode
Memory failure above address 0FFFFh
Timer-chip counter 2 failure
Time-of-day clock stopped
Serial or parallel port test failure
Failure to decompress code to shadowed memory
Math-coprocessor test failure
Cache test failure
UserManuals.info
floppy drive or hard drive); check system setup (see
make sure the boot sequence is correct for the devices installed on your
computer.
If the problem persists, contact Dell for technical assistance.
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If the system does not start, plug the computer into a working electrical outlet.
Also see "Power Problems" in your Owner's Manual.
Unplug the power supply and check the 4-pin processor power cable
connection (see "System Board Components").
Reseat the processor (see "Processor").
If there are no power problems and the system does not start, contact Dell for
technical assistance.
"System Setup") to