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Thread ID: 43519 2004-03-17 08:22:00 When POSTs Go Bad Growly (6) Press F1
Post ID Timestamp Content User
223226 2004-03-17 09:41:00 i would point my finger at the CPU, would be cool if you cold get a knowen good to test with. robsonde (120)
223227 2004-03-17 10:20:00 Dead mobo or cpu.Try the cpu first of course,then a mobo.If its been oc'd they may both be dead.

aern't you 2 the guys who run a business building and fixing computers?

Now you say you bought the system through a shop......and you have no idea how to even begin fixing it?

How would you look if you were called out to a job and you had no idea,or known good parts,or the ability to source known good parts immediatly?
metla (154)
223228 2004-03-17 10:24:00 Ok, just confirm that the only thing plugged into the motherboard is the Pwr supply lead. No floppy, hard drive, CDROM or memory modules. The only thing should be the CPU & Motherboard. If it fails to beep, then you have either...
1/ Dead speaker
2/ Speaker on incorrect pins on Motherboard
3/ Dead CPU
4/ Dead Motherboard.

The only thing left is to do a CPU substitution.
Pheonix (280)
223229 2004-03-17 10:53:00 > Ok, just confirm that the only thing plugged into the
> motherboard is the Pwr supply lead. No floppy, hard
> drive, CDROM or memory modules. The only thing should
> be the CPU & Motherboard. If it fails to beep, then
> you have either...
> 1/ Dead speaker
> 2/ Speaker on incorrect pins on Motherboard
> 3/ Dead CPU
> 4/ Dead Motherboard.

You are correct here I think.


I start when building system with M/B, CPU, CPU fan, RAM and video card and put this on a test with power supply before I put the lot in a case. Power supply is known good and the speaker I have here is known good.
If I don't get the right result there then either I didn't read the motherboard manual correctly or didn't do something I should have done regarding jumpers or otherwise stuffed up. Alternatively I just may have a faulty M/B, CPU, RAM or Vid Card. Possibly my known good P/S and / or speaker may have just died too. Hasn't happened so far but can happen.
>
> The only thing left is to do a CPU substitution.
That sounds like a good way to go and I believe you are correct.
The fact that the system was overclocked means there is a possibility the CPU overheated.
Elephant (599)
223230 2004-03-17 10:57:00 just to confuse things ...... some motherboards will not run at all (no post) if there is no ram installed. tweak'e (174)
223231 2004-03-17 10:59:00 > as off personal experience maybe the ram or cpu
> aren't connected properly, maybe something is
> touching/connected to something it's not supposed to

There is a possibility here too. I remember fixing a computer which had a spare screw lying between case and motherboard.

Good thought and it hadn't occurred to me as I was more interested in the overclocking thing.
Elephant (599)
223232 2004-03-17 11:03:00 That is true too. Elephant (599)
223233 2004-03-17 11:13:00 > Oh *laugh dont worry, it was my bad... i was thinking
> of the two cables...

What two cables? You will have two wires from internal speaker to the motherboard. These two wires are normally connected to a black header. Have you tried turning the header 180 degrees and inserting over the same four pins on the motherboard? This assumes you have the header on the right pins in the first place. I refuse to do this operation at night as I'm blind and refuse to use glasses. It is easy to have this connected incorrectly. Normally over four pins and only two of which are used.
>
> But there still remains a problem.... no beeps!
Elephant (599)
223234 2004-03-17 18:56:00 in my experience no POST means ram or cpu dead drcspy (146)
223235 2004-03-18 05:50:00 > Dead mobo or cpu . Try the cpu first of course,then a
> mobo . If its been oc'd they may both be dead .
>
> aern't you 2 the guys who run a business building and
> fixing computers?
>
> Now you say you bought the system through a
> shop . . . . . . and you have no idea how to even begin
> fixing it?
>
> How would you look if you were called out to a job
> and you had no idea,or known good parts,or the
> ability to source known good parts immediatly?
>

Thanks everyone, will do as suggested and get back to with results - except metla .

1) I had already figured that it was the motherboard, or the CPU . However, unlike you most probably would, metla, I'm not going to go and buy a new motherboard unless I know I absolutely have to .

2) Clearly you, too, have no Idea what you are doing . POST tests basic functions of the motherboard, and I have been taught that it is designed to beep when things go wrong . If, metla, it was a dead CPU, which i would not be surprised if it is, then can you explain to me, and guarantee that your explanation would work, as to why there is no beep? The motherboard manual clearly states "AmiBios Post Code Beeps : . . . 5: Processor Error", and my question is: WHY NO BEEP?

3) Thankyou for your somewhat interesting remark to our business . This is completely irrelevant, and I see no point in explaining to you the incorrectness of your point, as it would waste both my time and yours . (If you want to make it personal, please email me . ) But I'll go as far as saying that i cant afford to buy reserve stocks of motherboards just yet . Also, you claim we have no idea, but once again are wrong: I always have clear ideas of problems before coming here (I have difficulty getting nice answers out of people, case in point: yourself :D), and I was making sure before spending more money .

4) Everyone else:

i) By two speaker cables I meant the positive and the negative (Black and yellow in this case) .

ii) Speakers are not faulty, they've been checked

iii) Power supply is brand new . Shows no signs of power supply problems .

iv) No way of doing any software based tests on that thing .

v) The ram light turns on instantly with power . It makes you wonder the point of it, as there seems no time for it to check them on a degree more than that they exist . Yes, RAM is in POST, but it isn't the only thing .

vi) Back to the main point: Why are there no beeps? Is it fair to assume by now that the motherboard is completely screwed over and that there is no reprival to be sought? If so, then the news is as grim as I thought : more money is needed .

vii) I'll replace some parts with some from my computer (bear in mind that we are talking about my friend's) - my computer, that I built (metla), and that works perfectly (metla) . Will let you know how I get on .

Thanks guys .
Growly (6)
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