New Build - System turns on and off repeatedly, bad mobo?

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wormsofthee4rth

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Oct 9, 2017
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510
build:
case: thermaltake commander ms-i
mobo: gigabyte b250m-d3h
cpu: i3-7350k
gpu: asus geforce gtx 1060 3gb
ram: 2x evo potenza 4gb ddr4
psu: solid gear proton 450w


Just built a PC for the first time, all brand new components, and it turns on but then after 2-3 sec it turns off and then cycles on/off every couple seconds indefinitely, no display on the screen whatsoever.

Basically: lights on mobo turn on, graphics card lights and fan on, case fans on, cpu fan on.

I've tried taking everything out except for the PSU, MOBO, CPU, and fans and it does the same thing. I've tried re-seating and reconnecting everything a bunch of times (c mos battery, all connections and components). I did the paperclip test with the PSU and it works correctly and doesn't turn off/on. So I'm thinking it must be a problem with the MOBO? Is there some way I can test to make certain before trying to return it? Other than using a different mobo since I don't have one to test
 
Solution
elbert
Unplug the PSU from the wall for an hour. Then test without the GPU. This is how to get the PSU to reset its protection circuitry. Also while its unplugged pull the motherboard battery for atleast 5 minutes.

For effeciancy 80+ titanium is the highest but that doesn't mean quality. Quality is about the parts used and better designs. Here is a list of the differant levels of quality PSU's in a teir list. Tier 1 or 2 are good for high demand of gaming and overclocking.
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
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elbert

elbert

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Jan 11, 2005
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Take it out of the case and set the motherboard on the motherboard box. With CPU, RAM, and heatsink only test to see if it works. Try also with just one stick of RAM at a time. If nothing works then then motherboard, If it does tho either the motherboard is grounding on the case or a bad stick of RAM. Get plastic standoffs if its grounding.
https://www.amazon.com/Threaded-Spacer-Offwhite-Plastic-Standoff/dp/B0087Y9FTS
 
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wormsofthee4rth

Prominent
Oct 9, 2017
5
0
510


Just pulled out the MOBO and tried it outside of the case and it does the same thing, so I guess it's not grounding. I also put in standoffs and tried it with those and they didn't make a difference. Guess it's an issue with the mobo
 
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zamanzahid

zamanzahid

Commendable
Oct 10, 2017
8
0
1,510
i have the same problem, 2 weeks ago i bought used MOBO+CPU+RAMS with 2 hours of testing at a local shop and it ran without any trouble. after 2 weeks of tries i take it again over there and again it ran for 2 hours, i played a mission of COD-IW and after that shop owner ran 3 benchmark tests and there was no sign of trouble at all.

my build specs are:

CPU: i7 2600K
MOBO: maximus 4 extreme
RAM: corsair vengeance pro ddr3 2400 mhz 8x2=16gb
GPU: evga gtx670
PSU: cooler master gx750
CASE: cooler master cm 690 with additional 4 fans
HDD: 1 x 128gb Samsung SSD, 1 x 3tb Seagate HDD, 1 x 4tb Seagate HDD

what i did:
removing extra devices
changing the power cables
changing the power source
dividing the power source
taking everything out of the case
using single ram on every slot
removing 2 hdds
changing the GPU to gts450
changing the rams with basic 4gb's
changing the place (from home to office)
using a UPS with separate AVR

now i am planing to change the PSU, any recommendations for the PSU? i am thinking about going above 750W.

can someone suggest anything else?
 
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zamanzahid

zamanzahid

Commendable
Oct 10, 2017
8
0
1,510


if its messed up, you have to change the PSU. repairing PSU or cable is not a wise decision.
 
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zamanzahid

zamanzahid

Commendable
Oct 10, 2017
8
0
1,510
i took the system to another shop and the technician has confirmed that PSU is faulty.
i have my eyes on EVGA SuperNOVA 850 T2, 80+ TITANIUM 850W, Fully Modular PSU. any other recommendations?
i have also checked few website for the PSU power calculator, they are suggesting 630W PSU for my rig so i guess a 750W or 850W is the best choice.
 
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zamanzahid

zamanzahid

Commendable
Oct 10, 2017
8
0
1,510
since last few days i was thinking to check the bios setting thoroughly especially the overclocking section in the bios as in past i had this exact same problem with an AMD system and tonight i got that chance. when in the bios for few minutes, the system came in to boot loop. so turned off the system and waited for few minutes. booting again and went in to bios, the firs tab extreme tweaker, i turned every setting into auto mode and gave a restart and guess what the boot loop has gone. now system is running smoothly without any issue but i dont know what will happen in the morning but for now problem has been solved.
 
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wormsofthee4rth

Prominent
Oct 9, 2017
5
0
510



I replaced the MOBO and after that it worked great...for like 2 days. Then it froze up in the middle of a game and now its back to no display and turning off/on repeatedly, although it seems to run for like 10 seconds before turning off, although it seems to vary, no display on the screen. UGH!!!! Tried taking out RAM, GPU, reseating the CPU and CPU fan...still nothing. Wonder if it's the PSU? Wish I had another one I could test
 
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elbert

elbert

Glorious
Jan 11, 2005
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46,965
You should get a quality PSU as the one you have should only be used with OEM's. At most systems with integrated video. Here is a quality Seasonic gold version 550w than can handle any GPU. The power draw of the video card is probably causing protection circuitry in that PSU to kick.
PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - S12G 550W 80+ Gold Certified ATX Power Supply ($44.90 @ Newegg)
Total: $44.90
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-10-12 21:13 EDT-0400
 
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wormsofthee4rth

Prominent
Oct 9, 2017
5
0
510


Well, it does the same thing even with the graphics card removed so I don't think its the GPU causing it, but it does seem like the mobo is struggling to get power. Now, it basically comes on and the lights flicker off and on every 1-2 sec for about 10 or so seconds and then everything shuts off, then a couple sec later it comes back on and does the same thing. Unfortunately going in I knew the least about PSUs and just kind of guessed at which to get so it was probably a bad choice anyway. Will return it this weekend for a better one and see if it fixes it. Other than that I guess maybe it could be the cpu? But I tried reseating it, new thermal paste, and reseating the CPU fan (which is working fine) so I doubt it's overheating. The weirdest part is that everything worked great for 2.5 days w/ several hours of continuous use each day. Damn computers
 
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zamanzahid

zamanzahid

Commendable
Oct 10, 2017
8
0
1,510
i also want to change the PSU to overcome the fear of having boot loop again in future. what i have learned from others experience (on internet) / google is that the most trustworthy PSU is 80+ titanium. thought they are very expensive but you can strongly trust them plus always buy new products and from reputed sellers. never gonna buy used products/parts again.
 
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elbert

elbert

Glorious
Jan 11, 2005
9,704
6
46,965
Unplug the PSU from the wall for an hour. Then test without the GPU. This is how to get the PSU to reset its protection circuitry. Also while its unplugged pull the motherboard battery for atleast 5 minutes.

For effeciancy 80+ titanium is the highest but that doesn't mean quality. Quality is about the parts used and better designs. Here is a list of the differant levels of quality PSU's in a teir list. Tier 1 or 2 are good for high demand of gaming and overclocking.
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
 
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