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System won't boot


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#1 frank_cheese

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Posted 14 September 2010 - 12:36 PM

I have a mesh pc that worked fine unitl recently, with an ASUS 8AN-E motherboard. Now there is power going to the machine, but nothing happens when i press the power button. I thought the power supply was the most obvious cause, so replaced it with one from the same model of machine that does work, only to find that there was nothing wrong with the power supply anyway. It isnt any hardware, as i have unplugged every bit of added internal hardware and tried again, in sequence - the result is the same; nothing happens. The light inside the machine on the motherboard that indicates standy power lights up when the power supply is turned on. All cables are connected correctly inside the machine as i have done this many times before, my real question is do you think the motherboard has gone? because it worked last time the machine was used and has literally been sat under a bench for the past few months, but other machines of the same model have been in the exact same place with the exactsame hardware, but work fine.

Thanks in advance,

Frank
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#2 MrBruce1959

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Posted 14 September 2010 - 02:30 PM

Only thing I can suggest is make sure you replug all the power connectors on the motherboard.

I read your post throughly, I see what you tried and I have to stop and think, why would a computer that has just been sitting idle suddenly stop powering up?

There is no way a magic genie can just pop up and make something bad happen, however there is an evil force called OXIDATION that comes out of nowhere and reeks havoc with electronic ZIF connectors.

That is the only logical explanation for this.

So lets try that and see if we have found the problem.

If not, let me know, we will move on to doing some safe tests to test your power.

Bruce.
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#3 frank_cheese

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Posted 14 September 2010 - 02:49 PM

Well It's definately not the fact that the connectors weren't plugged in properly, because too make it at least try and boot you only need two connectors directly to the motherboard, the IDE, SATA, etc is irelevant unitl then. Plus i tried the exact same power supply with only those two connectors attached to one of the other pc's of the same model (from now on if i say another pc assume i mean one of the same model and hardware!) and it attempted to boot, the cpu fan started up, the chassis fans self tested, so it's not the connectors either not being plugged in correctly, or any problem with the connectors coming from the power supply directly. The sockets that they're plugging into all look clean and there is nothing on them, next please :thumbsup: by the way, i'd like to take this oppurtunity to thank you for your help in advance, in case i forget to later :flowers:
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