Personal Computer User Manual

Advanced Troubleshooting: Dell Dimension 9150 Service Manual
file:///T|/htdocs/systems/dim9150/en/sm/adtshoot.htm[10/31/2012 7:59:03 AM]
Another failure has
occurred.
Ensure that the cables are properly connected to the system board from
the hard drive, CD drive, and DVD drive (see "System Board
Components").
If there is an error message on your screen identifying a problem with a
device (such as the floppy drive or hard drive), check the device to make
sure it is functioning properly.
The operating system is attempting to boot from a device (such as the
floppy drive or hard drive); check system setup
to make sure the boot
sequence is correct for the devices installed on your computer.
If the problem persists, contact Dell.
The computer is in a
normal operating
condition after POST.
None.
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.
Code Cause
1-3-1 through 2-4-4 Memory not being properly identified or used
4-3-1 Memory failure above address 0FFFFh
If you hear one of the following beep codes, see "Contacting Dell" in your Owner's Manual for instructions on obtaining
technical assistance.
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