System will not power on after moving parts to new case

hortino

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Oct 7, 2013
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My brother purchased a new case and I went to help him move his entire system to the new case. (Core build below)

The system would power on, but not boot. I noted that he is pretty careless with his components and suggested that we may have messed up his motherboard (Biostar 970). So he ordered a new one (MSI 970 gaming).

Got the new motherboard went to install it, and noticed that we had bent some of the pins to his cpu. Whoops. Read some stuff about bending the pins back, did it. Installed the new motherboard (MSI). Now the system won't even power on. Put the old motherboard(Biostar) back in ("correctly" this time) and the system powers on but does not boot.

Read through all of the common issues on this thread and made sure we followed through with them.

He sent back the new motherboard(MSI) and requested a replacement. Took the computer to a repair shop (with the Biostar motherboard in) and they could not determine what the issue was and returned the whole thing to him saying they did not want to risk messing up any of his parts that were still good. They were, however, able to rule out the power supply, the ram, and the video card. Leaving only the CPU and the motherboard in question. In their testing they found that 1 of three things would happen:

1.) The system would do nothing, no power. Nothing.

2.) The system would power on fans would spin at full blast for about 15 seconds then the whole thing would power down.

or

3.) Fans would spin for about 15 seconds and then slow down and keep going indefinitely.


After getting the computer back he ordered a new processor (FX 8350 Black Edition) and got the replacement MSI motherboard in. I had a better space at my house and was generally more patient and careful with my builds than him. So I offered to take the new cpu and motherboard home with me to install. I did so, I even replaced all of his stand-offs/screws with the new stand-offs/screws that came with his new case. Carefully seated the new cpu into the board. Secured all of the cables double checked that they were fully seated. Checked that all of the front panel connectors were in the right place.

Plugged it into my monitor. Hit the power button... nothing. No lights, no fans, no power.

The only thing that I can think could be the issue now is his case. It is a Rosewill B2 Spirit full size ATX case (link below). When you press the power button it just feels unsatisfying. It doesn't really click, and sticks a little when you press it. But still, the system powers on with this case and the old biostar board. Just not with the TWO new MSI boards that we have tried.

Does anyone have any suggestions?

MSI 970 Gaming

Rosewill B2 Spirit Full Size ATX

MSI 1060 6gb

FX-8350 Black Edition

Corsair 750W

G.Skill 16gb x 4 (As I'm posting this I realized this is double the supported ram of the board. But I feel like it should still power on and go to bios? but I actually don't know. I will check when I get home and update.)
 
Solution


i should have noticed that ! apologies . do you have a psu you can test instead of the corsair or have you tried this ? its a poor quality power supply even though it is from corsair.. they actually replaced it with a new CXM model which doesn't have green coloured lettering .


Ok, just to be certain that I understand what you mean: Just touch the two pins on the mobo labeled "Pwr swtch" and touch them with a flat head?
 
Hi

Have you followed all of the steps ?
http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems

Start with breadboarding build out of case
One stick of ram only

A simple known good graphics card helps prefferably one not needing a pci-e 12 V cable
If no spare gpu available test gtx 1060 in another pc

Get a test kit consisting of a miniture speaker and two push to make switches
(Power & reset)
See what happens.
If this out of case build works add another stick of ram.
Once working out of case
Tripple check location of mounting pillars
Put mother board back in case

Regards
Mike Barnes
 


I have read and tried the things in the post. (As indicated in my own post.)

The motherboard posts are in the right spots. I've made certain of that several times.

I'm assuming that the computer repair guys did things like this. Though I can't be certain. I don't have anyway of assembling the unit out of case at the moment, but my resort to that eventually.

 


i should have noticed that ! apologies . do you have a psu you can test instead of the corsair or have you tried this ? its a poor quality power supply even though it is from corsair.. they actually replaced it with a new CXM model which doesn't have green coloured lettering .
 
Solution
We're pretty sure the power supply is not the issue.

I do have another from my own pc that I COULD test, but the repair shop ruled out the psu as the issue. The pc powered up with the old biostar motherboard in it. It's only when we put the new msi board in that there is a complete lack of power.
 


testing is the way to go. i mean you have tried new motherboards , new cpu , 1 stick of ram etc .. the issue is power. so test power 😛 let yourself at least rule it out .it is the only way to solve problems .
 


i can't view those pictures . the link is not a direct link. its html code .
 
We did personally see that the pc was powering in with the old board but not the new board. I suppose variables have technically changed since then, but I'd like to hold out for a non-power supply related solution before I go through trouble of hooking up another. (I'll do it though.)


This link for pictures?
https://m.imgur.com/gallery/9arP2

Edit: note that the front panel was not connected. In the picture, I was trying to bypass the power switch as per a suggestion on this thread. (It did not work)
 


please take this in the spirit that it is meant :) if i or someone else replies to your request for help/advice and you wish to hold out for a different solution.. how are we supposed to help solve the problem ? because our thoughts are always going to be on the power supply! we need to be able to rule it out or else we will feel we are wasting our time .

it may well not be the power supply but no power to the board and the slowing down of fans and shutting down.. says power issue ! like i say though .. take this in the spirit it is intended as i want to help you fix the problem :)
 
I get that and I do appreciate the answers that I'm getting here.

I guess I should be more clear on my hesitation. We have seen that this power supply works. I don't have a great deal of time to trouble shoot at this very moment. I was hoping that some other easily testable suggestions might come out until I have time to test a whole new power supply.

For when I do test a different power supply I have a couple of questions though.

Is it necessary to actually mount the power supply into the case or can I just plug everything in?

I have a 600w in my own system. But I also have a 500w that I recently replaced sitting in my closet. Are either of these enough to power up this system? I'd prefer to not pull my psu out of my system if I don't have to.. (also I don't want to risk messing up my working system to troubleshoot my brothers broken one).
 


is the 4pin cpu power connected . can't see what is or is not connected underneath the cpu cooler . i'm assuming it is as i can't see the 2 4pin connections anywhere else 😛
 


either of those will be fine for testing purposes as long as they have the required power connectors for your cpu and mobo.. it's not required to mount the psu but obviously make sure you place it somewhere safe that isn't going to fall onto your motherboard for example !
 


unless you're buying motherboards from brokenmoitherboards. net/cheapaschips which i seriously doubt then to have 2 faulty motherboards of the same model would be the worst luck i have heard . so lets consider the motherboard is not the issue . you have changed the cpu bent pins are now non existent . so box ticked . tested 1 stick at a time .box ticked .

tried powering on the pc with just the cpu and motherboard power connectors connected ? no hdds no gpu not even any ram . ?
 



I have not tried that yet. Currently at work, I will try when I get home.

What would that tell me if it does happen to power on without anything plugged in? Is there any reason why the motherboard should not be getting power besides a bad psu or a short?
 


well if it does power on// we would then start to connect devices one at a time till it didn't power on. but lets see if the first step brings any success first . no point in jumping the gun .