4 blip sound when PC is turn on and nothing thereafter?

Question

use PC (Lenovo, 5 months old) 2 days ago and all was fine, never install/remove software/hardware, tried holding "INS" key when turning on but no use - keybaord is not power-up

Answer 1

I believe 4 beeps means a bad motherboard.

Open up the case, check all the connections. Pull the memory an reinsert it. Pull the hard drive and floppy cables and any extra cards and try again.


If it is 5 months old is it still covered under warranty?

Answer 2

The beeps are an error report as the hardware is checked before the operating system loads.

Different Bios manufacturers use different codes:

AMI 4 beeps = System timer has failed - replace motherboard

AST 4 beeps = Keyboard communication failure - try another keyboard, if that fails, replace the motherboard

Dell 1-2-1 beeps = Progammable interval timer fault - replace the motherboard

Dell 2-1-1 beeps = Bit failure in first 64K of Ram - reseat the memory chips, if that doesn't work, replace the memory

IBM (Classic) 1L- 3s = EGA/VGA adaptor failure - replace the graphics card

IBM Aptiva 1-2-x = DMA controller failure - replace the motherboard
IBM Aptiva 2-1-1 = system board fault - replace the motherboard
IBM Aptiva 4 = onboard video fault - use a plug in video card or replace the motherboard

Mylex 4= Keyboard error - try another keyboard

Pheonix 1-1-2 =CPU failed - replace the CPU
Pheonix low 1-1-2 = motherboard fault
Pheonix 1-2-1 = Pragammable Interval Timer fault - replace motherboard
Pheonix 2-1-1 = Bit 0 of first 64K ram has failed - replace the memory

Hope that helps.

Answer 3

Need to know the brand of the mother board. 4 beeps mean different things depending on the mother board brand.

Answer 4

if it's a desktop, the RAM is probably missing or not properly connected. Check on it.