various problems. The delay between each beep is 300 ms, the delay between each set of beeps is 3 seconds, 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

Cause

BIOS ROM checksum in progress of failure

Troubleshooting Steps System board failure, covers BIOS corruption or ROM

 

error

Code

2

Cause

No RAM detected

Troubleshooting Steps

No memory detected

Code

3

Cause

Chipset Error (North and South Bridge Chipset, DMA/

 

IMR/ Timer Error) , Time-Of-Day Clock test failure ,

 

Gate A20 failure , Super I/O chip failure , Keyboard

 

controller test failure

Troubleshooting Steps

System board Failure

Code

4

Cause

RAM Read/Write failure

Troubleshooting Steps

Memory failure

Code

5

Cause

Real-time clock power fail

Troubleshooting Steps

CMOS battery failure

Code

6

Cause

Video BIOS test failure

Troubleshooting Steps

Video card failure

Code

7

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Dell P18S owner manual Troubleshooting Steps
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