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Solved PC wont boot -continuous long beeps

February 25, 2006 at 14:44:42
Specs: Win XP HHome, AMD 64 / 1GB

My PC has suddenly stopped booting up. The monitor dosen't come on, & it continuously gives out long beeps. I understand this usually means a memory problem (RAM) but I have changed these around & even put a friend's ram in but still no difference.
I have changed the (agp) graphics card & even tried a pci card.
Today I bought a new motherboard ! Still no difference. The power supply is a very good 400w one & works well. All the fans come on & everything appears to work, except the monitor & of course the loud, long, beeps.
Could it be the CPU ? The cpu dosen't look burnt or damaged at all, & I understand that I would get high/low beeps if that was the problem.
Can anyone help..please ??

Regards
Steve Harding


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✔ Best Answer
February 26, 2006 at 11:41:14

"....I have come to the conclusion that it's the CPU that's blown. I don't know how, but it can't be anything else."

Assuming the cpu was previously okay for a long while, I would suspect any of a power spike or surge, a discharge of static electricity, the cpu got too hot, yet doesn't show physical signs of that, or your original PS is defective but only intermittantly.

"I tested my memory this afternoon (by putting it in another pc) & it worked fine."

That doesn't necessarily mean it will work in your computer, but it does prove there's nothing wrong with it.
If it is the same ram you were using in your computer before this problem happened, yes, that proves there's nothing wrong with it and it works in both the other computer and your computer.



#1
February 25, 2006 at 15:58:04

http://www.pchell.com/hardware/beepcodes.shtml

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#2
February 25, 2006 at 16:02:49

"...stopped booting up. The monitor dosen't come on, & it continuously gives out long beeps.I understand this usually means a memory problem (RAM)"

No, it usually doesn't - a long beep is often either a video problem, or your mboard bios is set up to warn you if the cpu fan stops or runs too slow, or the cpu is too hot, or some voltage is too far out of whack.

"I have changed these around & even put a friend's ram in but still no difference.'

Mboard ram compatibilty varies a great deal, apparently especially when it is DDR ram - ram working in your friend's mboard doesn't necessarily mean it will work in your old mboard, or your new mboard.
You can look up what ram will work in your mboard for sure at many large memory module manufacturer's and memory distributor's web sites.
Ram doesn't suddenly go bad, especially if there was more than one module, unless something has damaged it - there may be nothing wrong with it.

Since you have eliminated the possibility of the video and the mboard, either your cpu is damaged or fried, or your power supply is defective (which may have damaged or fried your cpu).

"The cpu dosen't look burnt or damaged at all, & I understand that I would get high/low beeps if that was the problem."

When we say a cpu is fried, it doesn't necessarily mean that literally - it just means it no longer works.
The cpu doesn't have to look burnt, and it often doesn't - if it's core voltage got too high, it can "burn up" inside like a fuse does, without overheating.
What beeps you get varies a great deal, if you get any at all.

Power supplies can go out of whack intermittantly - the only way to check for that is to have monitoring software running in Windows all the time. Try another known good power supply - if it still doesn't boot the cpu is fried - if it boots, your power supply is defective.
This can happen to any power supply - it's jusy a lot less likely with a better one.



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#3
February 25, 2006 at 16:41:21

On older systems than yours, a working CPU is normally necessary to output the beeps. It might be different on your system. The motherboard itself might be putting out the beeps. Your motherboard manual should tell you if that's the case.

Sorry, I do not check for private messages


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#4
February 26, 2006 at 00:31:46

Hi Folks, thanks for all your replies.

The ram from my friends pc is the same as mnine (although is was only 256mb - mine are both 500). But like someone's already said, they shouldn't just blow like that.
Maybe it is the CPU.

Last night, I swapped the psu for another but it made no difference.

According to the m'board manual (& most websites) continuous long beeps mean it's the ram. I think the next step is to get the ram tested. I dont really fancy buying a new cpu just yet.
The mboard by the way is a Gigabyte GA-K8NS Pro (previous one that I took out yesterday was GA-KN PRO) both boards very similar.

- Steve


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#5
February 26, 2006 at 06:16:51

A continuous long beep can indicate keyboard.

You may need to reset your bios to default.


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#6
February 26, 2006 at 07:02:12


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#7
February 26, 2006 at 08:13:28

Hi all, right I have come to the conclusion that it's the CPU that's blown. I don't know how, but it can't be anything else.
I tested my memory this afternoon (by putting it in another pc) & it worked fine.

So, I will be ordering a new cpu.
Thanks
- Steve


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#8
February 26, 2006 at 11:41:14
✔ Best Answer

"....I have come to the conclusion that it's the CPU that's blown. I don't know how, but it can't be anything else."

Assuming the cpu was previously okay for a long while, I would suspect any of a power spike or surge, a discharge of static electricity, the cpu got too hot, yet doesn't show physical signs of that, or your original PS is defective but only intermittantly.

"I tested my memory this afternoon (by putting it in another pc) & it worked fine."

That doesn't necessarily mean it will work in your computer, but it does prove there's nothing wrong with it.
If it is the same ram you were using in your computer before this problem happened, yes, that proves there's nothing wrong with it and it works in both the other computer and your computer.


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#9
February 26, 2006 at 12:34:51

"Assuming the cpu was previously okay for a long while, I would suspect any of a power spike or surge, a discharge of static electricity, the cpu got too hot, yet doesn't show physical signs of that, or your original PS is defective but only intermittantly."

This is a good point. The psu is a very good quality 'Tagan' 480w one, & I know this is not faulty, but maybe there was some sort of surge. Before I had the problem, I noticed that most of the lights on my usb hub weren't on. I unplugged it's power 2 or 3 times, then decided to reboot the pc...that's when the trouble started.

- Steve



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#10
February 26, 2006 at 14:33:31

This is a good point. The psu is a very good quality 'Tagan' 480w one, & I know this is not faulty, but maybe there was some sort of surge. Before I had the problem, I noticed that most of the lights on my usb hub weren't on. I unplugged it's power 2 or 3 times, then decided to reboot the pc...that's when the trouble started.


You have led me to believe you have a USB problem.Some kind of short.Do you have a USB add on card?


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