Problem with newly built system
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Posted by Gold Fingers on March 3, 2006, 5:08 am
Please log in for more thread options Dave wrote: > kony wrote:
> > On Thu, 02 Mar 2006 16:49:32 -0500, Dave
> > > >> Ed Medlin wrote:
> >>>> Gold Fingers wrote: > >>>>> I've seen no mention from anyone about the Power Supply Wattage. Check > >>>>> your user manual to see the minimum wattage your system requires. I > >>>>> helped someone with their somewhat new system a couple days ago. It had > >>>>> the same symptoms as your system is experiencing. The person had a 300W > >>>>> PS from the old system installed. The downloaded users guide stated a > >>>>> 450W was required. > >>>>> > >>>> It's a 550W power Supply. > >>> Your symptoms really point to a PSU problem. I would say that somewhere in > >>> the range of 60+% of the start-up problems I have seen in the last year or > >>> two have been PSU related. I don't know if it is a problem of a lot of poor > >>> quality PSU makers or just that the newer systems just need more of a "kick > >>> start".....:-). I would try and get your hands on a known good PSU of 400w > >>> or better, hopefully a high-end brand, and try that. I wish you luck....... > >>> > >>> Ed > >>> > >>> > >> But if it was a faulty PSU would I not at least get P.O.S.T. beep codes > >> when I try to boot without RAM on the board? > >
> > There are plenty of failures that will not result in post > > beeps. Post beeps are not something to "seek", you only use > > them WHEN you hear some. You might as well forget that they > > exist. > > > > A faulty psu would most likely not produce any post beeps- > > it's almost guaranteed that kind of fault would not produce > > any, unless there was some wierd kind of (narrow operating > > region of instability) running state producing errors. It's > > not a likely occurance. >
I've seen Power Supply Units cut out before Post Beeps can occur, and
> but my point is that when I power up the system without RAM in it I > SHOULD get P.O.S.T. beeps, and that isn't happening! That's why I am > thinking it is probably the MoBo! fans would still be running. Then I've seen the same Power Supply go for a little longer, Post Beeps all the way to Log On, then cut out (monitor shut down). Then I had the same Power Supply go all the way through complete start-up, then just cut out without warning, and then couldn't get as far as Post Beeps again. Then look up and ask for a miracle, and I would get as far as Log On, then it would cut-out. Now that was definately a Power Supply problem. If it always gets to exactly one point and cuts-off, then it points to a defective or corrupted CMOS (BIOS) ROM chip. | ||||||||||||||||||||||
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Posted by kony on March 3, 2006, 9:00 pm
Please log in for more thread options >> A faulty psu would most likely not produce any post beeps-
>> it's almost guaranteed that kind of fault would not produce >> any, unless there was some wierd kind of (narrow operating >> region of instability) running state producing errors. It's >> not a likely occurance. >
>but my point is that when I power up the system without RAM in it I >SHOULD get P.O.S.T. beeps, and that isn't happening! That's why I am >thinking it is probably the MoBo! Forget about beeps. Do not consider them in any way shape or form until you DO heard some. Do not make assumptions about board- based on no beeps. It might be the board, but beeps only signify an error code, not even the actual error- and lack of beeps does not limit the variables. It could still be power or other things. For you, beeps do not exist. | ||||||||||||||||||||||
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Posted by Gold Fingers on March 2, 2006, 4:43 pm
Please log in for more thread options I agree with Ed. Points to Power Supply. Another possibility is a bad
or corrupted ROM chip for CMOS (BIOS). If you can't boot a floppy, then you cannot flash a new BIOS from the manufacturer. A complete & new flash can only be done from a floppy (DOS). You can replace the ROM chip, with BIOS already installed on it, from a manufacturer. If you install another Power Supply that you know as being good and has been tested to be good, and the same problem, then it points to the ROM chip. I've worked on systems with bad ROM chips. We just decided to trash the systems because the cost outweighed a new system. The ROM chips were probably corrupted by Virus! (Careless Users) Your system is NEW! If a new Power Supply doesn't solve the problem, then send the board to the manufacturer. | ||||||||||||||||||||||
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Posted by Dave on March 2, 2006, 4:50 pm
Please log in for more thread options Gold Fingers wrote:
> I agree with Ed. Points to Power Supply. Another possibility is a bad
I'm hoping it IS the ROM chip as I have already received an RMA to
> or corrupted ROM chip for CMOS (BIOS). If you can't boot a floppy, then > you cannot flash a new BIOS from the manufacturer. A complete & new > flash can only be done from a floppy (DOS). You can replace the ROM > chip, with BIOS already installed on it, from a manufacturer. If you > install another Power Supply that you know as being good and has been > tested to be good, and the same problem, then it points to the ROM > chip. I've worked on systems with bad ROM chips. We just decided to > trash the systems because the cost outweighed a new system. The ROM > chips were probably corrupted by Virus! (Careless Users) Your system is > NEW! If a new Power Supply doesn't solve the problem, then send the > board to the manufacturer. > return the MoBo for exchange. | ||||||||||||||||||||||
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Posted by jamesa on March 5, 2006, 5:33 pm
Please log in for more thread options What kind of CPU and heat sink-fan are you using?
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