Fresh Build will not go into POST. PSU fan bursts on then off in 1 second intervals.

Nitrocide17 · May 23, 2014

I'm having trouble with a fresh build and after doing some looking around on your forums I think i have made a bunch of beginner mistakes. I dont know what is wrong with the parts if anything but everything looks like it is hooked up properly. I bought everything new. Please someone help me.

Instead of opening up bios or POST, my computer power LED lights on the case and GPU will flicker on and off and the PSU fan will follow the same pattern. the interval is about 1 second. my monitor shows no signal I am afraid the parts aren't good or my PSU isn't powerful enough. I have tried moving around the ram but to no avail. I lost my board speaker and am currently looking for it.

Is there any hope in salvaging this build?

spec is:
Intel i5-4579
ASRock Z87 Extreme3 LGA1150
2 x Crucial Ballistix Sport 8GB DDR3-1600
Asus GeForce GTX 660
AeroCool Xpredator X3 ATX Mid
FSP Group 400W 80+ Gold Certified

P.S. I put these parts together on http://pcpartpicker.com/p/3PFLW and took their suggestion on wattage.

damric · May 23, 2014

CLEAR CMOS

PSU might be slightly too weak. Some FSPs PSUs are meh...

damric · May 23, 2014

Let's look up how to CLEAR CMOS in your mobo manual. BRB.

damric · May 23, 2014

ftp://66.226.78.21/manual/Z87%20Extreme3.pdf

Page 23. Follow the jumper diagram. Unplug power first.

Nitrocide17 · May 23, 2014

damric :

excuse me? I'm new and i have no idea what CMOS are. And that's what i suspected, A weak PSU

damric · May 23, 2014

Let me know if the CMOS CLEAR fixes your problem.

Nitrocide17 · May 23, 2014

damric :

move the cap to pins 2 and three then turn on?

damric · May 23, 2014

Move the jumper from 1-2 to 2-3. Then move from 2-3 back to 1-2. Then start. Sorry I should have specified.

Basicly you are shorting the circuit so the capacitor can drain out. This resets the motherboard's BIOS.

Don't worry. If this doesn't work, I know many ways to skin cats.

Nitrocide17 · May 23, 2014

I tried it and same response as before. Same flickering and fan is still only running on the PSU.

damric · May 23, 2014

Ok let's try without the graphics card. Remove that and plug monitor straight into the motherboard.

If we have to, we will strip this baby down to the bare essentials.

Pondering · May 23, 2014

I have no idea how to troubleshoot but what kind of installaton errors would cause the short circuit protection on the PSU to kick in besides motherboard standoffs not being installed properly?

damric · May 23, 2014

heh, no worries. If need be, I will instruct you to breadboard this baby.

Nitrocide17 · May 23, 2014

removed the GPU and same result as before. i'm starting to think i somehow shorted the board

damric · May 23, 2014

Ok no problem. Slowly disconnect everything, and pull out your mobo and stick it on a cardbard box or a flat non-conductive table.

Nitrocide17 · May 23, 2014

will do. i'll let you know when i get it out

damric · May 23, 2014

ok. Leave the CPU and cooler attached. The next step will be to hook the PSU 24 pin cable to the motherboard, and the CPU power cable to the motherboard. Just use 1 stick of RAM. Keep your monitor plugged in, and your keyboard.

^^ that's you call breadboarding. Just bare essentials.

Now see if you can power it up and get something on the screen from the motherboard's BIOS. You will have to turn it on by using a screwdriver to short across the prongs where the power switch normal plugs into the motherboard from the case. Just touch it across for an instant.

If you were right about shorting something, we will find out now.

Nitrocide17 · May 23, 2014

and nothing... i guess i shorted something while attempting to install the board

damric · May 23, 2014

Well nothing is shorted now, so it should kick on. Did you remember to plug in both the 24 pin and the 4 pin 12V?

If that doesn't work, we can do the paperclip test on the PSU.

Nitrocide17 · May 23, 2014

i have the 24 pin and the 8 pin 12v. not sure where the power button attaches. i'm looking at pages 24 and 25. power pins are mixed in with the rest of the system stuff

damric · May 23, 2014

k open this up again:

http://www.tomshardware.com/answers/id-2153867/fresh-build-post-psu-fan-bursts-intervals.html

Page 11, lower right corner. ZOOM IN LIKE 400% to see it.

See it labled PWRBTN. Short across those two prongs to power on.

Nitrocide17 · May 23, 2014

link goes back to this forum and not to what you wish to show me

damric · May 23, 2014

lol oops i meant this:

ftp://66.226.78.21/manual/Z87%20Extreme3.pdf

Nitrocide17 · May 23, 2014

anyway i went to the site and saw where it is but touching those with my screwdriver doesnt even move the fan on the psu. literally nothing happens

damric · May 23, 2014

Alright. Disconnect PSU. Find a paperclip or a staple.

Do this:

http://aphnetworks.com/tutorials/psu_paperclip_trick

Nitrocide17 · May 23, 2014

8 pin 12 volt wasnt connected all the way and 24 pin was crooked. fixed locations and cpu fan turned on at constant rate. tried shorting it and nothing. i checked and monitor is on. tried readjusting again and fan went off

Fresh Build will not go into POST. PSU fan bursts on then off in 1 second intervals.

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