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Posted 15 February 2012 - 19:22
Posted 15 February 2012 - 19:24
Posted 15 February 2012 - 19:25
You don't want it contacting the metal on the case. Try taking it out and putting it down on cardboard, and then turning it on.
If it fires up, then the metal on the case was shorting it. You'll need to put some risers in to lift it off the metal on the case.
Posted 15 February 2012 - 19:37
It's only firing in to life when it's touching the case, not when it isn't. That's what's strange making me think it's faulty soldering.
Posted 15 February 2012 - 19:55
Hmm. Could be, but have you also checked the PSU? I would switch it out and try another unit. If it works on the PSU side you push down, it could be a short circuit in the PSU. It seems farfetched but worth a shot. Otherwise, unless we had some pictures to work with.
EDIT: Also, have you tried removing RAM?
Posted 15 February 2012 - 20:05
Just checked with an 850w PSU and also have tried 3 different sticks of RAM. Same situation, no sign of life until the underside solders are hitting the case, at which points fans and HDD spark in to life.
Will go take a quick video with the phone to show what I mean and hopefully show that there is no life till the connection.
Posted 15 February 2012 - 20:10
Cool, that should help. When you do push it down, does the computer post?
Posted 15 February 2012 - 20:11
Posted 15 February 2012 - 20:14
How much pressure are you putting on the board to make it touch the case? Or do you not have the stand-offs properly installed? Jeebus, if it wasn't dead before, I'd imagine it is now.
As Zappa suggested, take it out of the case. And stop trying to short it or bend it,.
Posted 15 February 2012 - 20:20
Posted 15 February 2012 - 20:21
Posted 15 February 2012 - 20:41
Strange. It shouldn't be coming on at all.
Take everything out of that case. Remove everything unneeded (Video card, hard drive, RAM.)
Set the PSU and motherboard on cardboard. Take the case completely out of the equation, and any other peripherals.
Then take a screwdriver or something metal, and short the power-on "button" (metal prongs: There should be two, so make sure the screwdriver touches both of them at the same time,) on the motherboard. (Essentially the same thing as hitting the front power button on a case.)
Let me know if it turns on or not when you do this. If it does, start adding peripherals while keeping it out of the case. Also for good measure, reset the CMOS.
looking at that vid, I would guess (as the mobo doesnt seem to be screwed down in vid) that 1 the risers for the mobo is shorting it out, when you pushed it down, the short is being broken, either that or the cables that you are pushing down on, there is a loose /dodgy connection there
Posted 15 February 2012 - 20:54
Posted 15 February 2012 - 20:58
Damn. The only conclusion I can draw from this, would be your first assumption, of a bad/faulty electrical job on the motherboard. I'm still thinking and looking into other possibilities though. If I come up with anything or find anything, I will let you know. Otherwise it might just be DOA.
I would also try posting this, and everything we have done (possibly linking to this thread) over at http://www.tomshardware.com/
That is also worth a shot.
Posted 15 February 2012 - 21:01
Thanks, yeah I'm guessing it will be getting sent back tomorrow, hopefully they can get a new one out quickly.