Dell Dimension 4600C - Manual (Page 3)

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.
Reseating the memory modules may fix the beep code errors in the following table. If the problem persists, see "Contacting Dell" in your Owner's Manual for
instructions on obtaining technical assistance.
If you hear one of the following beep codes, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.
reinstall one memory module (if the computer supports a single module), and then
restart the computer. If the computer starts normally, move the memory module to a
different connector and restart the computer. Continue until you have identified a
faulty connector or reinstalled all modules without error.
Memory modules are
detected, but a memory
configuration or
compatibility error exists.
l Ensure that there are no special memory module/memory connector placement
requirements .
l Verify that the memory modules that you are installing are compatible with your
computer.
l If the problem persists, contact Dell. See "Contacting Dell" in your Owner's Manual for
technical assistance.
Other failure has
occurred.
l Ensure that the cables are properly connected from the hard drive, CD drive, and DVD
drive to the system board .
l If the problem persists, contact Dell. See "Contacting Dell" in your Owner's Manual for
technical assistance.
The computer is in a
normal operating condition
after POST.
None.
Code Cause
1-3-1 through 2-4-4 Memory not being properly identified or used
4-3-1 Memory failure above address 0FFFFh
Code Cause
1-1-2 Microprocessor register failure
1-1-3 NVRAM
1-1-4 ROM BIOS checksum failure
1-2-1 Programmable interval timer
1-2-2 DMA initialization failure
1-2-3 DMA page register read/write failure
3-1-1 Slave DMA register failure
3-1-2 Master DMA register failure
3-1-3 Master interrupt mask register failure
3-1-4 Slave interrupt mask register failure
3-2-2 Interrupt vector loading failure
3-2-4 Keyboard Controller Test failure
3-3-1 NVRAM power loss
3-3-2 NVRAM configuration
3-3-4 Video Memory Test failure
3-4-1 Screen initialization failure
3-4-2 Screen retrace failure