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Naoki
Reged: 11/10/09
Posts: 1980
Loc: UK
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Re: PC troubleshooting help
02/09/14 04:02 PM


> > Basically, when you press the power button, the fans all spin up, but it never
> POSTs.
> > I tried disconnecting the drives, and even removing all the memory, hoping to hear
> > some beep codes or something. I even changed the jumpers on the motherboard to
> clear
> > the CMOS and pulled the onboard battery. No change.
>
> The same thing happened to me with my old motherboard the other day, fans spinning
> but no POST, no beeps, monitor = "no signal". I did the same things that you did, but
> after removing the memory I got some angry sounding beeps. I could then boot with one
> module in, reset BIOS settings, switch it off and pop the second module back in and I
> was back in business. I have no idea why it did that but it works now.
>
> So I'm thinking yours should at least have complain-beeped when you switched it on
> with no memory?
>
> Maybe that means the CPU has died?
>
> S

If you remove the RAM and no beeps then the BIOS code isn't running. AMDs do run hot and they can fail with heat so a duff CPU isn't unlikely. I'd try removing everything and clearing the dust and trying again, else either the CPU or board is bad. If you had a logic probe you could tap onto the BIOS chip and probe Address 0, Data 0 or Serial Data, no activity when you power up means again, no code is running, else if it is being read, the mobo may be fine but the CPU might not be


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Entire thread
Subject Posted by Posted on
* PC troubleshooting help krick 02/09/14 08:27 AM
. * Re: PC troubleshooting help lamprey  02/10/14 05:24 AM
. * Re: PC troubleshooting help Naoki  02/10/14 12:16 PM
. * Re: PC troubleshooting help Hadou Ken  02/09/14 08:54 PM
. * Re: PC troubleshooting help krick  02/09/14 09:25 PM
. * Re: PC troubleshooting help B2K24  02/09/14 09:57 PM
. * Re: PC troubleshooting help redk9258  02/09/14 05:48 PM
. * Re: PC troubleshooting help krick  02/09/14 07:51 PM
. * Re: PC troubleshooting help Sune  02/09/14 08:59 AM
. * chip creep URherenow  04/28/14 09:07 AM
. * Re: PC troubleshooting help Naoki  02/09/14 04:02 PM

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