Well, is it over?

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Luxion

Commendable
Mar 22, 2016
21
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1,510
So embarrassed right now...
Just built my new pc, with a h500 and a RM750x to find that it will show no signs of power. I didn’t install any standoffs...
I thought they came preinstalled in the case and fear that I may have short circuited specific parts of my build. If anyone would like a full spec list let me know, but what are the chances of the motherboard not even showing a single twitch of light? Is it the psu or a very quick short circuit?

What should I do from here? :/
 
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I have not reinstalled the standoffs yet, and I’m looking into the breadboarding method. Is there still hope if I reinstall the standoffs? I mean how much power can be going through the back of a motherboard that has not even had the power button pressed?
 
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Very true, as said I’m just very surprised that the pc could have short circuited THAT quickly, not even a light on the gpu... anyway thanks for the reassurance bud!
 
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Agreed, taking the motherboard out with the pump and rad attached could be a laugh but better be safe than sorry and in this case I’m just hoping some of the components are still alive
 
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Are you sure that the backplate doesn't have standoffs installed? how did you fit the GPU? the mobo would have been too low and it wouldn't have fitted properly.

The reason I am asking this is that there are many reasons for a PC not starting up when first built, if you extract it from the case and it still doesn't, is it broken or just not plugged in properly, at which point you could easily declare all components broken when in fact it is something else. So are you sure your case needed stand-offs, or does the backplate have bumps for some of them (which may be enough electrically, just not great mechanically).
 
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Okie dokie, if it helps I’m using a Asus x470 Prime motherboard along with a NZXT H500 and a RM750x. I can take photos when I get home before I take out the mobo to take another look. This is my first build by the way.
 
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If you had no standoffs your mobo would be below the io port and would be floating in free space in order to fit, not tight and hard to fit.
 
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But there’s no light on the gpu (Strix 1070), motherboard, fans (direct to psu), rgb light strip. No signs of life at all, could the 8 pin cpu cable really make that much of a difference?

Tonight I will check the wiring and look at the mobo placement
 
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Thank you for that intelligent response... at every little helps at this point haha, only a couple hours until I get home. And hopefully I can select my answer soon :/
 
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I swapped the cables from my old modular psu and found that the culprit was the 24pin connector going back to the psu. I may have damaged it myself, I’m unsure but now I have one black cable rather than white haha, not too fussed though. Standoffs were fine.
 
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Good news! for reference for anyone else reading this, modular PSU cables are generally speaking not swappable without serious investigation. Models within the same brand might have different pin-outs (yes it's not very good to not have standards), I'd even assume that new versions of an old model would not necessarily work, and the failure mode is very very bad.

Luxion may have gotten lucky, may have had the same PSU handy to donate it's cables, as the saying goes, do not try this at home.
 
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