Black screen and siren noise

Question

Hello, I am writing to you because I have a problem. I have a desktop PC with a central unit that dates back to 2003, the motherboard is from NVidia, the processor is 1.5gh (Pentium 4), and I think it's AMD. The issue is that when I start the PC, there is a black screen with a siren noise coming from the tower, and I see that the hard drive LED shows no activity. I would like to know if it's the processor that is faulty or if one of the other components on the motherboard is faulty. If my tower is faulty, do you think I should buy another motherboard or a processor?  Thank you in advance

aymeric.moulin · Answer

Hello,  It happened to me, it's probably the motherboard. A Pentium 4 is definitely not an AMD (they're competitors). Specify how your computer beeps (in seconds, etc.)  Aymeric

f3rox · Answer

Hello, so for the main question which is where the problem comes from, it might be that your hard drive is damaged (I had the same issue and my tower was beeping) in which case you need to replace it. If your tower is dead, and the PC is 5 years old, it might be best to invest in new hardware...

homerlefou · Answer

It might be one of the two hard drives that are acting up, so I will check that.^^

aymeric.moulin · Answer

But in that case, your PC shouldn't beep.

homerlefou · Answer

No, I checked, it's not my hard drives... so the motherboard is dead!!! My PC has kicked the bucket!!! :'(

jimini24 · Answer

Hello  I had a problem recently (black screen) but it didn't beep  I just changed the motherboard battery, and since then it's working fine  But it can come from a lot of things, check the RAM and look at the capacitors on your motherboard, if too many are bulging with acid leaking from the top, it could be coming from there, but it's not certain.

aymeric.moulin · Answer

It's silly, it can happen... -- Aymeric Moulin. IBM ThinkPad A31 Intel Inside Pentium 4-mobile 1.60 Ghz ATI Mobility Radeon 7500 16 Mo HDD 27.05 Go Operating system Mandriva-Linux 2009

raphy le grand · Answer

Hi, if there is one long beep, one short beep, and two long beeps, it's the graphics card.

homerlefou · Answer

So I found the motherboard reference, it's: A7N266-VM then for the BIOS, I'm almost sure it's Phoenix, just to remind the main question: I have a continuous fire truck siren noise and my screen is black, so Windows does not start. So here is the manual for this motherboard in English: www.unitycorp.co.jp/support/download/manual/a/a7n266_vm_e.pdf  Thank you for your help!!!

Cowboyxx62 · Answer

Isn't that the anti-theft alarm?? Oops, I'm leaving! You didn't mess around with your BIOS, did you? If you can still access it, reset everything to default.

marc · Answer

I have exactly the same problem and I can't figure out where it comes from. Apparently, it might be the processor that is poorly inserted or damaged since you mentioned having a siren which means repeated High/Low beeps... However, after asking some experts, I was told that it was very unlikely especially if it's an INTEL...

marc · Answer

aaahhhhh

ludo2433 · Answer

Hi, first of all, does your PC have dust on the components?  Secondly, check if the battery is dead, but I don't think that's the issue since it only serves to retain the BIOS settings; otherwise, it would revert to factory settings, but that doesn't prevent the components from functioning.  Thirdly, how did this happen to you? What were you doing with your computer before it happened?  P.S. I have the same problem, and I'm sending it to an expert to test the motherboard, and I'll let you know more tonight.  Link to the topic Black screen (hardware ok) (ludo2433)  @++

ludo2433 · Answer

Here is a more direct link  http://www.commentcamarche.net/forum/affich 10351546 ecran noir materiels ok?#20

marc · Answer

L'écran est resté allumé pendant 2 semaines... et à mon retour, il était éteint et depuis c'est mort...

ludo2433 · Answer

Hi, I went to the technician last night and there was no change since that idiot didn't have the gear or the time to test my motherboard, thanks Cybertek!!! Anyway, I'm going to ask a friend who has the same setup as me and I'll keep you updated.   PS I have a system controller on the board with diodes, and they are all red, and I wanted to add a speaker to the motherboard and when I turned it back on, I noticed it didn't make any sound.

marc · Answer

I meant to say the PC.... lol sorry.

ludo2433 · Answer

He stayed on for 2 weeks, connected to the internet with antivirus and anti-spyware?

marc · Answer

Yes, but mine has indeed stayed on for 2 weeks with a connection but protected without any issues...

ludo2433 · Answer

re   I'm starting to feel like I'm not alone in the case where the BIOS has disappeared, vanished somehow after a simple shutdown of the computer. It’s really weird!!!!!!

Bilou · Answer

Have you found a solution to the problem since then? I just got this siren with a black screen.

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