Breadboarding with bare minimum, but new build still won't boot.

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wmi.omar

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Dec 12, 2017
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My new PC build (my first build) won't boot. I have tried pretty much everything. I have taken everything out of the case, and left only the cpu and heatsink plugged into the motherboard, outside the case. I checked the power supply by putting a staple from the green wire to a black one, and the fan goes on. When I plug it into the motherboard, the fans don't go on. The only cables are: case speaker plugged into motherboard. Heatsink fan (I switched back to the stock intel one just in case) plugged into motherboard. 4 pin from psu to motherboard for cpu. 24 pin from psu to motherboard. No beeping, no fans spinning, no display if i plug in a vga to my monitor. Parts: i3-7100 core, MSI B250M Pro-VD, Logisys 480W power supply (cheap and pretty generic). I haven't yet tested with a multimeter, but could that even be the problem, or do I just have a faulty motherboard or cpu?
 
Solution
DRagor


You can try testing voltages with multimeter, sure, but there is good chance that you will get correct voltages and that answers nothing. If you can't borrow PSU, then your next move should be a comp shop, although I don't know if you can find one that can do it for free - but it costs nothing (aside from time) to go and ask.
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DRagor

DRagor

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Jan 23, 2017
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If motherboard fails up to power anything (even LEDs), then it's either dead motherboard or faulty PSU. Paperclip test you made on PSU is not enough to consider it working. Next step is to test the board with different PSU - and if still zero response, I would call motherboard faulty.
 
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wmi.omar

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Dec 12, 2017
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I'm 15, I'm on a tight budget and I don't have any spare psu's lying around as I'm the only non-apple guy in the house. Should I try a multimeter test? Do you think a computer store would test a different psu for free?
 
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wmi.omar

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Dec 12, 2017
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I was hoping at least for a long beep signal for no RAM. I read that it was a good idea to strip it down all the way to eliminate any doubts.
 
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DRagor

DRagor

Polypheme
Jan 23, 2017
9,028
745
65,440


You can try testing voltages with multimeter, sure, but there is good chance that you will get correct voltages and that answers nothing. If you can't borrow PSU, then your next move should be a comp shop, although I don't know if you can find one that can do it for free - but it costs nothing (aside from time) to go and ask.
 
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Solution
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wmi.omar

Prominent
Dec 12, 2017
6
0
510


I'm going to try and find a psu somewhere that I can use. Thanks.
 
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