4 blip nouns when PC is turn on and nought thereafter?

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

Answer:
I believe 4 beeps channel a bad motherboard.

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


If it is 5 months old-fashioned is it still covered under warranty?
if it's a desktop, the RAM is probably missing or not properly connected. Check on it.
Need to know the brand of the mother board. 4 beep mean different things depending on the mother board brand.
The beep are an error report as the hardware is checked before the operating system loads.

Different Bios manufacturer use different codes:

AMI 4 beeps = System timer have failed - replace motherboard

AST 4 beep = Keyboard communication failure - try another grand piano, if that fails, replace the motherboard

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

Dell 2-1-1 beep = Bit failure contained by 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 let-down - replace the motherboard
IBM Aptiva 2-1-1 = system board fault - replace the motherboard
IBM Aptiva 4 = onboard video mistake - use a plug in video card or replace the motherboard

Mylex 4= Keyboard error - try another grand piano

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

Hope that helps.

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