Computer boots then shuts down and reboots repeatedly.

blackmoon9

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Mar 27, 2015
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(may be reformatting nicely soon, but I'm trying to get this issue through ASAP first. ;D......)

Hello fellas.

I am having a pretty annoying problem with my computer, which I cannot solve on my own no matter how much I troubleshoot and look around for info (all the posts I've read so far around the web about related issues basically point to the same stuff: did you plug the PSU in? did you connect all cables? clear CMOS/remove battery/switch RAM around/freeze your motherboard or deep fry it for 2 hours in a large baking pan etc.....)

After noticing my computer was making a lot of noise after moving to the country where everything is eerily quiet, despite it being built using a Fractal Design R4 case, I decided to inspect it and noticed not only the front fan was completely dead (though I haven't went as far as opening it and re-soldering.), the rear fan and (stock) CPU cooler were making clicking noise, and the PSU at the time (Corsair SmartPower-750, which was a rush local purchase because I had the rest of my build already and PSU's can be a whole universe on their own and it seemed to fit the bill at a nice price.) was about as loud as a vacuum cleaner, on top of the fact I tried running a stress-test on my processor which became over-temperature after one minute - leading me to go ahead and splurge a bit since I seemed to have some headroom right now.

So I bought a new PSU (Seasonic X-1250), pair of case fans (Cougar CF-V14HP's) and cooler for my 4790k (Noctua NH-D15) (as well as a set of Logitech Z506 speakers, as my old Z313's too, were making a lot of noise. and that, just by being plugged in. (not related to input or noise.) and, might as well save on shipping costs while I'm ordering something !!.....), which arrived the next day just about 12 hours after shipping. (thanks Newegg. Amazon always takes much longer, when I have to resort to using them. (Canada))

After putting the new pieces in, I noticed my PSU would make a loud clicking noise, the computer would start up, and immediately shut down with another click, so I thought my PSU must've been defective (though it was working perfectly before hooking up to the mobo. and apparently that's either normal or common with this PSU.), which was ruled out by using the pin shorting technique which I'd just learned about. (almost 15 years after building my first computer. rofl.)

So, eventually I'd tried everything I know and could dig up on the internet, as I mentionned, and still don't quite know what could be the problem.

The computer boots now, somehow, after reseating the CPU and HSF a few times, but will automatically shut down within a minute, only to reboot and such over and over again.

I never had a video signal before, but even now, I still don't, despite the computer powering on correctly, whether I use the onboard video or not.

That, coupled to the fact neither my case nor my mobo offer a computer speaker, has me really puzzled about what could be the problem.

I'm 90% sure the RAM has nothing to do with it, as it won't even go into POST and I believe a working computer without RAM will at least get to POST, and last time I fried my CPU (or mobo, don't remember as it's been over 10 years.), I don't recall it powering on at all.

All of which has got me thinking it must be the motherboard. (could have to do with a shorting, but I highly doubt so as I have a mobo-friendly case with a cutout and standoffs, and I tried finding any loose parts or screws and couldn't find or hear anything, so I haven't tried pulling the whole thing out yet as it would take a lot of time and the issue might be easier to find through other means.)

Also, neither Intel nor ASRock have been able to help me any further on this issue at the stage I'm at.

I already have a new mobo coming in (the Fatal1ty Z97X Killer, also by ASRock. looks great on paper, decent reviews, and was 10% off. ;D.......) on priority, just in case, and ASRock has also offered to RMA the board which I pretty much can't do because of it is such a long process and I need to get back on track ASAP, but hopefully I'll be able to find out at least if it is indeed the mobo, or possibly the CPU (or even the RAM) before it gets here.

That being said, I don't have a car, and getting a taxi to town to get it checked would cost me more than buying a new board completely, and I highly doubt any of my neighbours would have any swappable hardware compatible with last year's high-tier technology in a $1500 computer. ;).....

Here are the things I've tried, in no particular order:

- Reset the CMOS.
- Take out the battery.
- Tried different RAM slots, and different RAM in different slot combinations. (have 2 sticks.)
- Tried no RAM at all.
- Stripped down to the bare necessary.
- Looked around for loose connections, loose screws, possible shorts or broken components.
- Tried with my old PSU.
- Short-pinned my current PSU which is working 100% fine. (runs for ever without a hitch using that method.)
- Tried different power cords.
- Reseated every single connection and core component.
- Looked under the CPU for any dirt or such, and on the mobo for any broken pins.
- Even tried booting with just the CPU and no heatsink (never know), to see if I could at least get something on the screen. (immediately shut down after 2 seconds of course.)
- Contacted Intel and ASRock support.
- Basically anything you could find in your troubleshooting guide, or any other such resource on the 'net.
- Googled for about 6 hours with every perspective possible of the situation.
- Cursed at ASRock and Fractal Design for not having computer speakers.
- Was even desperate enough to go and cut off one of my spare speakers' wires to hotwire it as a beeper speaker. (ended up not doing it, as per recommendations. apparently NOT a good idea.)

Unfortunately, didn't have the time to order an electrical testing kit along with the mobo as I would need to shop a bit for that alone and I needed to get it in by the 12PM deadline, but I'll try and get the stuff ASAP as it seems it could always be useful. And also, a grounding strap. (read next point.)

Lastly, it MAY have been some static or a short or other electricity-driven phenomenon, as although my best efforts to keep grounded at all times before touching my box's core, apparently you need to touch a NON-painted surface, and everything inside my case was painted, and neither Fractal's manual nor my mobo's build guide made similar statements.

Just learning that now is quite painful, and this is about my 6th or 7th computer I've built by myself. Maybe I should have spent even MORE time reading about computer building and components and electrical theory. (also, had some problems with mounting the HSF as the included manual was frankly a little confusing, and I might've dropped a few screws and also possibly made contact with the mounting bars and other things inside the case, along the putting it on and removing it back and forth in all the wrong ways possible (and constantly trying to keep its base and the heatspreader free from all the dirt I could see floating in the room with my work light.), (first time being forced to change my stock cooler ever. and before, I would've never had the budget to anyway. ;D.......) though nothing serious, as it's mostly all just PCB around the CPU area)

And, lastly for real, when I was cleaning off the thermal paste from the CPU, it was so dry that instead of being wiped off it just caked and fell on the sides like paint, so I thought the liberty of removing the processor and taking care of it to make sure it would not impact the computer in a negative way, so I may have touched something inadvertently at that moment (much before reading about the not being grounded by touching painted surfaces thing.) (though not the CPU's underside or the pins themselves.). Just thought it was worthy of mention, as I'm frankly about to twist my head off at this issue, and I've done a LOT of troubleshooting (even for other people) and parts-swapping and general hardware reading in my life.

(note: cooler is on and fans are working and plugged into the CPU_FAN1 header as should be, as I think a computer will not boot if it doesn't detect some kind of CPU cooling IIRC.)


Well, that's all I can think of for now. On that note, thanks a lot, and hopefully with a bit of real expert(s)'s help I'll be able to enjoy the dedicated soundcard and Proteus Core mouse I have on the way with my new 5.1 setup before Nazeebo gets taken out of the free rotation next week. ;D.......

- blackmoon9


- Essentials
CPU: Intel i7-4790k
Mobo: ASRock Z97 Extreme3
RAM: 2x8GB G.Skill Ripjaws 1600mhz DDR3 modules
PSU: Seasonic X-1250
CPU cooling: Noctua NH-D15
Rest is removed or disconnected currently, except for the GPU which I put in occasionally to double-test for a signal.


(oh gawd. i just noticed Newegg shipped my mobo with Purolator. turns out I apparently mistakenly went for Ground shipping (though I'm 100% sure I chose Express I when I was offered the option.) while having a hard time going through the order process on top of having 2 minutes left to proceed to order, and now it's out of the warehouse. Dx..... WHY, OH WHY !!..........)
 

blackmoon9

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Mar 27, 2015
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Hi Andrew,

First off, I have finally went through the work and put the motherboard outside the case on a non-conductive surface (cardboard, close enough to wood.).

Didn't help the situation though, so it's not a short somewhere apparently. (nothing else seems to be broken off or anything, upon closer inspection, either.)

I did what you said, plugged in everything except the CPU 8-pin, and it does the same boot-and-immediately-shut-down thing. (instead of staying on for a bit as it does when it is plugged in.) So, probably 1) the CPU is fine 2) the mobo wasn't detecting it at first explaining why it was shutting down immediately before I inspected it 3) it's probably the mobo at this point. Or the RAM, but AFAIK a computer will at least POST without RAM but I'm still getting no signal at all.


Thanks.

(also, quite unlikely that I fried TWO sticks of RAM simultaneously during the operation anyway, especially since they are the armor (heatsink)-clad kind. ;).....)
(also-also: plugged in ONE of the two included HSF fans directly instead of both through a Y-split. still nothing.)
 

blackmoon9

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Mar 27, 2015
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I guess my order of priority is to 1) rule out that the PSU might possibly have sent out a surge somehow, or that it's a bad unit. don't think this is even possible, but once again, this IS a $200 PSU with a $400 processor, and my motherboard I have coming is also $200 and would hate to fry it too. just those three pieces are worth more than most entire computers I've bought before. unfortunately, not quite sure how to test for this without proper electrical testing equipment. (i could always plug in the old PSU on the new mobo and see if it boots, then switch it out, but i have no guarantee in this situation that the same won't happen when i switch over.) 2) rule out the CPU being faulty. (being the most expensive piece and also the most important performance-wise, IMO.) and finally 3) rule out the RAM being faulty. esp. since it's the heatsink-clad kind, and i never handle it by the pins or touch the chips when they have exposed chips. either way, if it's the RAM, i'd be fine with 1 stick of cheap stuff for a while, so it's not very important, apart from only being able to open 50 tabs instead of 100. ;).......

Other than that, considering it's 95% sure it's a problem with the board, my front 3.0 header was broken on the old mobo anyway, from plugging the 3.0 cable in, breaking some of the pins after one corner of the plastic broke off. Cheap plastic musta been. And it's interesting to go for a "luxury" mobo that has excellent reviews from professional reviewers overall, (though at $200 still only mid-range somehow, rofl.) and offers pretty good PCI-E capabilities as well as SATA-Express and M.2 for futureproofing/possible upgrades.

Too bad I had less than an hour to shop for it and read as many reviews as possible, though, with the Newegg same-day shipping deadline coming. Might've went for the MSI Z97-G45 Gaming which was a bit cheaper, and otherwise quite similar, (and available locally. also has included OC/fan control suite, which the ASRock model doesn't seem to offer for the price, which might be interesting seeing I'll be eyeing that OC potential soon with my new Watercooling-level DH15 and better case flow.) if I had the time, but I couldn't find any professional reviews about it.

Definitely didn't see that Purolator, ground-shipping thing coming though, that being said. :p.....
 

Andrew Murdoch

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Mar 16, 2013
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Unfortunately the only way to really know what a PSU is doing is to use a multimeter.

You have been pretty thorough in your examination, were you able to ascertain any beep codes from the improvised pc speaker? If not hopefully you will get a new one in the next mobo and be able to use that. Sorry I couldn't be more help.
 

blackmoon9

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Mar 27, 2015
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Indeed, I have a lot of experience with PC components, PC building and general troubleshooting and reading up, and I just can't identify this problem. Wish I'd heard about the painted surfaces thing earlier though. Apparently a good fix for it is to stick a screw somewhere that would go directly in the case, and use that instead. Seems to make sense, as it would create a direct contact. Was eyeing either using a power cable's ground pin too, or maybe using a ground pin from my PSU, but as I'm not too certain either one would work, I daren't take the chance right now, heheh.

I swear to god though, as awesome as the NH-D15 might look standing tall and proud on your CPU, the manual simply was not that good, (it says "make sure the curved surfaces are pointing outwards", which I did, but they meant the grooves pointing upwards on the brackets, not ) ( vs ( ) configuration, which I had made sure to do, and made me have to take everything off and back on initially (first time being forced to change a stock cooler indeed.) for example. very non-specific.), the said brackets are very hard to align on the pins they rest on, no matter how careful you are, causing potential touching stuff you shouldn't or easily dropping them by accident because of their threads, and also very hard to lift back out once you fit them on as the threads will interfere in every manner possible with your efforts, and the "thumbscrews" for securing the plates on leave very little room for error. Almost every single time I took one out, be it using my fingers or the included tool or a screwdriver, once you took it out it would just fall to the side and roll onto the motherboard, unless you have ninja fingers. Definitely not good IMO. Will definitely e-mail them about those issues some time, though like I said I don't think it fell on or made me touch anything particularly sensitive.

That being said, definitely investing on a grounding strap and electrical testing kit next time I order anything.


Thank you.

- blackmoon9

(P.S. As I said, I ended up NOT doing the speaker thing, as desperate as I was and as interesting and fun it may have seemed. Apparently it would either not work, or possibly cause further damage even because of how internal speakers are designed vs desktop speakers.)
 

Andrew Murdoch

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Mar 16, 2013
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I know what you mean about getting some coolers in. I have large hands and sometimes I have trouble getting to the cooler screws because the heatsinks on the mobo are too big! Coupled with coolers being pretty fiddly these days I totally feel your pain.

Glad you didn't try to hotwire a Pc Speaker :). If you get any beep codes please let me know!

Enjoy your fatal1ty mobo, I love mine.