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My PC Simply Won't Turn On After Changing Out Motherboards


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#1 NotWill

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Posted 14 March 2015 - 05:24 PM

I want to start off by saying I am NOT good with the internal works of computers. I built my PC about 2 years ago. Recently decided to change motherboards/processor. And I plugged everything in, everything went swimmingly, except it won't turn on.

 

Here's a link to what it looks like: http://imgur.com/a/4K3pq (sorry about the blurriness on 2 of the photos)

 

Any help would be MUCH much much appreciated.

Thanks.



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#2 ChaseWheeler

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Posted 14 March 2015 - 06:17 PM

Ok so diagnosing hardware issues can be crap shoot sometimes, there's lots that could be wrong, and it could be something really simple.

So to start this off I'm going to ask a few questions first!

1. So the computer doesn't fully boot, but does it do anything? Does the screen flicker on or show any error messages? Any lights either on the power supply or motherboard, any fans turn on?

(Also I want you to completely unplug the powercord, then plug it back in and see if anything happens. Then hit the power button and see if anything changes.)

2. What are the model numbers of all of your hardware?

3. Is your video cable plugged into your motherboard or your graphics card?


(After you post the answers to these I'll probably have more questions! :P)

Edited by ChaseWheeler, 14 March 2015 - 06:18 PM.

I couldn't do this job without my coffee and vape.


#3 NotWill

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Posted 14 March 2015 - 08:00 PM

Thanks for the help.

 

1. It does absolutely nothing. The green dot on the motherboard is glowing when connected to power though. Nothing turns on when I push the on button though.

 

2.

GPU: GeForce GTX 780

CPU: Intel i5 Core

MB: P8B75-M

PS: 750W - P1750SNLB9

 

3. My Graphics Card.

 

Thanks!



#4 ChaseWheeler

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Posted 14 March 2015 - 08:56 PM

Ok so I have a few things to check or change. We'll take them one at a time. Also I'm on my mobile so it may take some time for me to research and post.


To start off we're going to change the layout of your memory. I'd like you to download your user manual from this link, make sure that you get Version E9142 (the newest version).

If you look at section 1.7.1 of the user manual it labels each memory slot. At the end of section of 1.7.1 it recommends that when using 2 memory sticks to use the slots A2 and B2. Refer to section 1.7.3 and 1.7.4 for instructions on installing and removing memory.


Ok, so move the memory to the proper slot s and Try it again.

Also I've just started taking shots with my friend who goes to boot camp tomorrow so this is the last advice I'll give for the night.

I couldn't do this job without my coffee and vape.


#5 NotWill

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Posted 14 March 2015 - 10:51 PM

Done and done. Still no changes though, unfortunately.

 

Have a good night!



#6 ChaseWheeler

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Posted 15 March 2015 - 03:13 PM

Ok, so now we're going to start doing some process of elimination by removing non critical components from your motherboard one at a time, testing for changes in between each.

We're going to be removing all of the external cables (sound, USB, Ethernet etc) until the only external cable in the machine is the power. After that we'll be removing all of the SATA cables internally.

Again make sure that you remove the cables one at a time. so that if it starts working you know which cable is bad.

For instructions on where your SATA cables are on your motherboard refer to your User Manual section 1.10.2 9 and 10.

I couldn't do this job without my coffee and vape.


#7 NotWill

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Posted 15 March 2015 - 06:52 PM

None of that worked, unfortunately.

 

I made another album: http://imgur.com/a/zLqPJ , I want to make sure everything is plugged in correctly.


Edited by NotWill, 15 March 2015 - 06:52 PM.


#8 ChaseWheeler

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Posted 15 March 2015 - 07:00 PM

Ok the next thing we're going to look at is the System Panel Connectors (section 1.10.2 7 in the user manual)


These are really easy to get wrong, can you take them off and post all of the writing on the connectors? We'll put them back on and make sure that they're connected to the right pins.


EDIT: Also I'm not sure if the new pictures you added to the album just don't show the memory, but are the sticks still in the correct position?

Edited by ChaseWheeler, 15 March 2015 - 07:03 PM.

I couldn't do this job without my coffee and vape.


#9 NotWill

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Posted 15 March 2015 - 08:38 PM

My bad, here are the actual new pictures: http://imgur.com/a/p1Hz2

 

The list of the names and where I put them:

Power Led+ / Power Led- (I put these top left hand corner)

H.D.D. LED (Bottom left hand)

POWER SW (Top right hand)

RESET SW (Bottom Right hand)

 

Thanks!



#10 ChaseWheeler

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Posted 15 March 2015 - 08:46 PM

Ok, so the connectors are in the right area, but they may be switched around (ground going into the power etc). The only one that's really important is the POWER SW (power switch) so flip that one around and try it.

Also if you could get really clear pictures of that area it'd be nice!

I couldn't do this job without my coffee and vape.


#11 NotWill

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Posted 15 March 2015 - 09:47 PM

Didn't work either :L

 

Here's the pictures: http://imgur.com/a/p1Hz2



#12 ChaseWheeler

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Posted 15 March 2015 - 10:03 PM

In the picture below you don't have your P4 connector plugged in, plug that in and see if there's any change.

El9Uzmh.jpg

I couldn't do this job without my coffee and vape.


#13 NotWill

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Posted 15 March 2015 - 11:35 PM

God damnit, I linked the wrong pictures. Here's the actual pictures: http://imgur.com/a/QbL6t , sorry.

 

Thanks for the reminder about the P4 connector, but it didn't help.

 

EDIT: Could my processor not being installed correctly prevent the PC from booting at all?


Edited by NotWill, 16 March 2015 - 12:28 AM.


#14 ChaseWheeler

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Posted 16 March 2015 - 12:41 AM

Yup a motherboard won't boot without a processor. Do you think you installed the CPU improperly?

I couldn't do this job without my coffee and vape.


#15 NotWill

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Posted 16 March 2015 - 05:37 PM

I thought it might be but I was wrong. It's installed correctly. 

 

What if the CPU Cooler/Fan has one pin that won't go in, didn't notice it before but I do now. Would that stop it from booting at all?






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