No boot. I've tried just about everything. (New PSU, lights flash once)

tylerfurniss · Mar 28, 2015

I ordered a new PSU about 2 weeks ago and after installing it (correctly) my computer would not boot. The only hope of power is the lights on the fans blink 1 time for about half a second when the power button is pushed, nothing else happens only the lights flash. I have tried, uninstalling the new PSU and installing the old one, still nothing. I tried resetting the BIOS battery, nothing. Nothing seems to be working. Any help would be greatly appreciated as I'm at a dead end now. Thank you much.

Here is the computer: http://www.newegg.com/Product/Product.aspx?Item=N82E16883229618

Here is the PSU I ordered: http://www.amazon.com/gp/product/B00H33SFJU/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

alexoiu · Mar 28, 2015

"the lights on the fans blink 1 time for about half a second when the power button is pushed"
It looks like a short. Try testing the board outside the case. Check again all connections.

tylerfurniss · Mar 28, 2015

alexoiu :

How should I go about doing that? And if there is a short what would I need to do to fix it?

alexoiu · Mar 28, 2015

Take the board outside the case, put it on its cardboard or similar non-conductive surface and start it with only CPU, CPU fan, single RAM module, graphics card, HDD, keyboard and mouse connected.

And if there is a short what would I need to do to fix it?

Let's check firstly.

tylerfurniss · Mar 28, 2015

alexoiu :

Same thing happened. No boot, light flashed. I'm really hoping the next thing you say isn't to get a new motherboard.

alexoiu · Mar 28, 2015

Can you post a picture with the motherboard, CPU and CPU fan installed, both 24 and 8 pin power cables connected?

tylerfurniss · Mar 28, 2015

alexoiu :

http://imgur.com/a/gGNM8

If you need anything more specific let me know, thanks for you help so far btw.

alexoiu · Mar 28, 2015

No problem. Board is still inside the case and it looks like standoffs are not installed (but I might be wrong). Try though testing the board outside the case.

tylerfurniss · Mar 28, 2015

alexoiu :

Does that really make a difference though? I will do it but I dont understand how changing the environment of the motherboard will affect it, care to explain?

alexoiu · Mar 28, 2015

From the pictures, it looks to me that the board does touch the case (no standoffs installed) and that would short the board, therefore the issue.
I know that it implies some work, but outside the case it's much easier to troubleshoot/correctly install components/ rule out a short.

tylerfurniss · Mar 28, 2015

alexoiu :

http://imgur.com/GL17bo6 update

alexoiu · Mar 28, 2015

Does the CPU fan spin when starting the board, or still stopping?

tylerfurniss · Mar 28, 2015

alexoiu :

No power for anything. Since that picture I reinstalled the graphics card. No lights are flashing either but Im guessing thats because I cut power to them when I took the mb out the box.

alexoiu · Mar 28, 2015

"No power for anything"
Is the PSU turned on?

tylerfurniss · Mar 28, 2015

alexoiu :

If only that were the case haha. Yes it was.

alexoiu · Mar 28, 2015

What happens when shortly touching with a screwdriver the 2 pins on the motherboard where the case power button gets connected (it's what the power button does when pressed - it shorts the 2 pins)?

tylerfurniss · Mar 28, 2015

alexoiu :

Do you want me to touch them individually or at the same time?

alexoiu · Mar 28, 2015

Both at the same time.

tylerfurniss · Mar 28, 2015

alexoiu :

Nothing happened. I can tell things arent looking good.

alexoiu · Mar 28, 2015

Try testing the power supply: https://www.youtube.com/watch?v=5FWXgQSokF4
See if a connected fan does spin.

tylerfurniss · Mar 28, 2015

alexoiu :

Power supply booted up, fan ran.

alexoiu · Mar 28, 2015

Then it looks like a motherboard issue. Were standoffs installed in the case? Can you post a picture with the case interior (something like http://hw-lab.com/uploads/pr/scythe/case/ikazuti-interior.jpg )?

tylerfurniss · Mar 28, 2015

alexoiu :

http://imgur.com/B1uIWHV

alexoiu · Mar 28, 2015

Standoffs look ok.
Is the PC under warranty?

tylerfurniss · Mar 28, 2015

alexoiu :

I'm not sure. Wouldn't taking it apart like this void the warranty anyway?

No boot. I've tried just about everything. (New PSU, lights flash once)

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