chris07 wrote:
> On Jul 16, 1:31 pm, "RobV" <r...@nowhere.invalid> wrote:
>> chris07 wrote:
>>> So I purchased an ABIT AB9 motherboard and installed it into a
>>> computer, I know what i'm doing and for the first 6 weeks everything
>>> worked fine. Now everytime the computer falls asleep or is shut off
>>> it will not power back on, all the lights turn on just like it's
>>> running, but nothing shows on the screen. I can get the computer
>>> back on by powering it off and resetting the CMOS jumper but this
>>> is obviously not a long term solution. Has anyone else had this
>>> issue? Let me know, thanks. - Chris
>>
>> Could be a power supply problem. What brand and wattage PSU are you
>> using? A listing of the other components in the system would help as
>> well.
>
>
> It is a 500 Watt power supply, I'm guessing the brand is Raidmax, it
> came with the case I ordered.
> The CPU is an Intel Core 2 Duo E4600 2.4GHz LGA 775 65W.
> Motherboard is of course an ABIT AB9 Pro LGA 775 motherboard.
> And it is running off of 3 GB of CORSAIR 240-Pin DDR2 800 - PC2 6400
> RAM.
>
> I built it and it worked great for about a month straight (granted I
> only used it for a couple hours each day after work and I never let it
> go into sleep mode) but then all of a sudden it has this problem of
> not wanting to come out of sleep mode. Does this sound like a power
> supply issue? Wouldnt the wrong power supply either not run the PC or
> blow up the motherboard?
The power supply may be supplying the correct voltages, or it may not
be. Get a multimeter and measure the voltages at the ATX connector.
The +5 V, +12 V and +3.3 V should be within 5% of the voltage.
It sounds as if you have a generic branded PSU and they generally will
not supply the voltage at the current listed, but even at reduced
current it should be enough, unless the PSU has some defect, whhich is
possible.
No, a bad PSU does not generally "blow up the MB", or do anything else
spectacular. Usually, the system will not work at all, or it will
manifest as odd problems, such as yours.
It's a good idea to have a good quality PSU available as a spare, as
this is the most frequent item to fail.
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