help computer wont switch on - Computer Help & PC Help Forums

tom1987 · 06-30-2008, 07:52 PM

turned on computer fan come on. but nothing on monotor fan is louder than usual there is also a beeping noise from base unit. took it apart and cleaned dust out but still nothing

any ideas?

**Wolfeymole** · 06-30-2008, 07:57 PM

Hi Tom

Welcome to Free PC Help

Tell us exactly the amount of beeps and the frequency of the beeps if you can please.

Example: 2 short beeps and 4 long beeps

tom1987 · 06-30-2008, 08:40 PM

theres 3 beeps each beep is about 3 seconds long and 1 second apart.

also forgot to say the computer switches on as soon as i plug it in and the on button has no effect what so ever.

thanks again

Tom

**Dalo Harkin** · 07-01-2008, 07:45 AM

If the fan comes on really loud then that means that the quiet options within the BIOS have been reset - have you been doing any overclocking or changed anything significant like the CPU etc.
Have you tried popping the battery out of the Motherboard (with the power off at the plug too) leave it out 30 seconds and then reinsert the battery and turn the plug and PC back on - you will lose all the settings in the BIOS but we can tell you how to re enter them.
Please post ASAP and let us know

tom1987 · 07-01-2008, 04:52 PM

Quote:

Originally Posted by Dalo Harkin

If the fan comes on really loud then that means that the quiet options within the BIOS have been reset - have you been doing any overclocking or changed anything significant like the CPU etc.
Have you tried popping the battery out of the Motherboard (with the power off at the plug too) leave it out 30 seconds and then reinsert the battery and turn the plug and PC back on - you will lose all the settings in the BIOS but we can tell you how to re enter them.
Please post ASAP and let us know

just tried this no joy

i havnt been doing any overclocking or changed the cpu.

**Wolfeymole** · 07-01-2008, 05:00 PM

It sounds to me Tom that when you took the side off to clean it you may have dislodged either the memory or the graphics card, recheck that they are fully seated then reboot.

tom1987 · 07-01-2008, 05:16 PM

just pushed all cards in still nothing

i think i will have to take it to a computer shop tomorrow

thanks anyway

**Wolfeymole** · 07-01-2008, 05:23 PM

When you cleaned it out did you remove (not change) the CPU as Dallo suggested?

The point I'm making Tom is that if you did then you may have inadvertently damaged a processor pin.

Please tell us if this is the case.

**Dalo Harkin** · 07-01-2008, 05:31 PM

To be honest it just sounds like the pins that you connect from the Case to the motherboard have been knocked loose - check the motherboard manual and the wires are normally at the bottom right of the motherboard
they have to be put in the right way so one side is negative and the other is positive.