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Thread: Brand new, awesome build getting 'surge' problems.. refuses to now POST at all.

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    Default Brand new, awesome build getting 'surge' problems.. refuses to now POST at all.

    So I have been assembling parts for the last month and a half and today I finally got the final piece to give me a bootable PC (the CPU). Here are all the parts I have: http://de.pcpartpicker.com/p/KGPmzy
    (I don't have the GPU yet, it's still being posted)

    I made one really big mistake when building the PC...

    I was watching a video on how to build a computer from scratch with all the parts etc. and I accidentally installed the motherboard without the hex screws:

    So basically I just popped the motherboard on, screwed it in with some screws and didn't realise that it was supposed to be mounted (behind the board) with those hex screws. The reason why I didn't remember to put the screws in is because the guy in the video had already done that before anything else and didn't mention so. I know I should have read the guide that came with my case but I couldn't find it (as I got the case almost 2 months ago) and well it's too late to worry about that now.

    So I got it all in, and I booted it up and everything seemed fine. I got to the awesome looking ASUS Bios screen and the BIOS reported that it had correctly identified all of my components. (CPU, RAM, HDD etc). Everything looked nicely set up.

    I went ahead and applied the "Asus Optimal" settings, and then I turned on XMP for my memory and set it to profile 1. I took some pictures of the BIOS to send to my girlfriend and as I was doing this, the PC rebooted and I was met with the "American Megatrends" BIOS screen that said
    Power supply surges detected during the previous power on. Asus anti-surge was triggered to protect system from unstable power supply!
    Before the computer encountered its first surge it was on for probably JUST under 2 minutes.

    Before I could press anything it rebooted again, and then again. So I disconnected it, double checked everything and then well I realised from another video that I had forgotten those hex screws so I took the whole thing apart and I put them on and then screwed it in properly. Now I was crossing my fingers that the problem would be resolved...

    After trying everything again, I got the same issue, except now I couldn't even get past the ASUS logo and into the BIOS setup. However after removing some components (RAM, HDD etc). Now the system just flashes the CPU light for a split second, and the fans spin for just a moment and a small click is heard from the PSU. Sometimes the CPU light doesn't light up for the split second and sometimes you can't hear the click from the PSU but it's relatively the same thing.

    So here I set amidst my computer in pieces and I am wondering what part of my PC that I broke due to record breaking stupidity. Was it my PSU, was it my Motherboard. Did I manage to break my RAM too? Or... maybe.. just maybe the PSU I got was faulty... (I doubt it, I probably messed something up).

    I've tried taking out the CMOS battery.
    I've tried clearing the CMOS jumper.
    Removing all the parts except for the CPU and Mobo.
    Tried with and without the RAM and CPU heatsink.

    Things just got progressively worse from being able to be in the BIOS for almost 2 minutes, to not being able to get into the BIOS setup again but being able to see the ASUS logo. To not even being able to have the system POST.

    Does anyone please have any ideas? I am unsure whether or not to replace the PSU or the Motherboard (or both -___-). Could I have damaged the CPU or RAM at all?

    Thanks so much for any help..

    P.S. Unfortunately I don't have a CMOS speaker on this case so I am unaware as to what beeping sequence I am getting if any.

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    Did you ever power up the system OUTSIDE the enclosure?
    Best, Luca

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    Only after it wouldn't boot inside it and that's when it refused to even POST or get to the Acer logo.

    I just finished the paperclip test on the PSU and it failed. Fan spins up for about 2 seconds (like it would be plugged into the Mobo) and then it just stops. I guess it's a dead PSU.

    Probably my fault.
    I'll try and get it replaced and if I can't I'll buy a new one.

    I really hope the problem stops after a replacement of the PSU

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    Silly question, but which PSU is it? It may be fanless up to a point by design...
    Careful what you wish for... You just might get it.

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    The RM750i is a semi fanless unit. It's probably working just fine.

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    Quote Originally Posted by McSteel View Post
    Silly question, but which PSU is it? It may be fanless up to a point by design...
    It's in the PC Parts Picker link.

    Quote Originally Posted by Leijonasisu View Post
    I just finished the paperclip test on the PSU and it failed. Fan spins up for about 2 seconds (like it would be plugged into the Mobo) and then it just stops. I guess it's a dead PSU.
    Wolf is correct. That PSU fan only spins for a couple seconds on initial power on and that's it. If you want to make sure the PSU works properly, do the paper-clip test with a fan attached to a Molex.

    Given that you bolted a board directly to a piece of metal and put power through it, I'm pretty sure your board is dead.

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    Quote Originally Posted by jonnyGURU View Post
    It's in the PC Parts Picker link.
    Wow, I managed to completely oversee that. Thanks!
    Careful what you wish for... You just might get it.

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    Thanks a lot for the replies.

    http://youtu.be/iaJ8wwWhLBc

    I ran the paperclip test again (video above) with a fan connected via a molex to fan adapter, to one of the 4pin peripheral adapters on the PSU. The result is exactly the same. Fans spin up for a moment and then they stop, both on the connected fan and the PSU.

    When pushing the 'fan test' button (and holding it in) the fan on the PSU (whilst plugged into nothing) will spin until I release the button, but I guess that only tests the fan rather than if the PSU is working correctly.

    So what do you guys think.. fried PSU, fried board, fried CPU? Should I open my own restaurant and start selling fried components?

    Any idea on what to do next?

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    Quote Originally Posted by Leijonasisu View Post
    Any idea on what to do next?
    RMA the motherboard and don't say a word about how you boot it (yes, that's not proper towards the reseller: alternatively, buy a new mobo).
    Best, Luca

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    So you guys seriously think that the motherboard is broken not the PSU?

    Remember that the motherboard did boot up for about 2-ish minutes the first time. All devices displayed correctly in in the Asus BIOS. I was able to configure XMP to profile 1 and I was able to set the Asus settings to 'Optimized'. The total system on time was probably just over 2 minutes before it rebooted to the 'American Megatrends' screen and stated that there was a surge and that it had been shut off to prevent damage.

    Things got gradually worse from there as I explained in post 1. (PC wouldn't even boot to the BIOS Logo "press DEL to enter setup").

    Like I showed in the video, I connected a fan to a molex adapter and the fan stops spinning too after about 1½ seconds. This has all characteristics of a faulty PSU (either due to my negligence/mistake or it arriving that way).

    Do you really think that it's the motherboard? If I had fried the motherboard due to some of the back solderings touching the case, wouldn't it have happened instantly instead of after about 2 minutes?

    I don't know that much about PSUs but this seems more like a stability issue that resulted either as a result of me mounting the Mobo without the stand-off screws or the PSU just failing as the components started to warm up.

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