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Wondering if any experts can help me with my situation?

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Old 12-01-2018, 05:51 PM   #1
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Wondering if any experts can help me with my situation?

Hi all,

Would like to ask experts out there for help for the following situation:
(Please pardon me if I have missed out any information)

My PC past few days keep turn on by itself when I am not home. then 2 nights ago, suddenly cannot turn on at all. press power button but nothing happens at all. no components run, no fans spinning, no beep, nothing at all.

then I tried to jumpstart my PSU by using the paper clip method to test if it is dead. 1 to green 1 to black. the PSU fan runs.

then i tried to use the PSU on my another system (ITX). it manages to power the system on.

then i tried to test the power switch by using a flathead screwdriver, nothing happens either.

afterwards, i gave up and went to sleep. but left the power supply on. in the middle of the night, it turned on by itself again but i did not do anything about it. by the time i woke up, it was off again, and once again, it cannot be turned on.

then last night i tried other methods. i unseat the cmos battery for 20+ min. after that put back. still cannot. components do not run.

after that all of a sudden the PC turned on by itself, then i manage to go to bios after the page which tells me that cmos was reset, but in another 1-2min it shut off by itself again. and cannot turn on again.

I should also mention that while I cannot power it on, my motherboard still has 2 red LED light - 1 is the power led and the other appears to be the HW game boost LED. the blue LED on my orico USB hub plugged in also lights up

system specs are as follows:
-CPU i7 7700K
-Motherboard MSI Z270 Gaming M7
-Ram Trident Z RGB 2x8GB 2400MHZ
-Galax GTX 980TI HOF
-SSD NVME Samsung 960 Evo M.2 500GB
-PSU Seasonic X-Series 750W 80+ Gold
-NZXT Kraken X62 cpu cooler
-NZXT Aer 140 RGB fan
-NZXT HUE+
-Phanteks Evolv ATX Tempered Glass Satin Silver case

Am I required to do the whole breadboarding method of understanding which part is faulty?

Appreciate any help, thanks!
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Last edited by Junken; 12-01-2018 at 05:59 PM.. Reason: missing info
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Old 12-01-2018, 06:08 PM   #2
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Omg... Got ghost.

But seriously, there is no logical reason why such a thing is happening... Can only suspect bad PSU or Mobo.

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Old 12-01-2018, 06:35 PM   #3
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Have u tried using another PSU cable or wall socket and test the same PSU cable and wall scooter for your itx and see if it does happen to it as well.
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Old 12-01-2018, 06:45 PM   #4
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Omg... Got ghost.

But seriously, there is no logical reason why such a thing is happening... Can only suspect bad PSU or Mobo.

Sent from OnePlus ONEPLUS A3000 using GAGT
2nd the ghost part haha

More like to be mobo as ts tested his psu with another rig

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Asus Strix X370-F Gaming (BIOS v3803)
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G.Skill Trident Z RGB 3600MHz C16 (3333MHz @ 14-14-14-14-34, 1.38V) 16GB Kit (2x8GB)
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In Unicorn Land
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Old 12-01-2018, 07:37 PM   #5
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Have u tried using another PSU cable or wall socket and test the same PSU cable and wall scooter for your itx and see if it does happen to it as well.
Tried a different wall socket and the main power cable and still did not work. The same wall socket and main power cable worked for the ITX.
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Old 12-01-2018, 07:38 PM   #6
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But could it be voltage degradation or something? Might have enough juice to power an ITX but somehow not sufficient to power my system? Will try taking out gpu and one ram stick or something later to see if it runs.
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Old 12-01-2018, 07:58 PM   #7
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Are you able to power on using the onboard power button (bottom right of MB)?
Processor
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Gigabyte Aorus Gaming 7
Graphics Card
MSI GTX 1050 Ti
Memory
Corsair Dominator Platinum 16GB DDR4-2800
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Acer Predator Z35
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Sandisk 480GB Extreme Pro + Zotac 240GB + 2X4TB HGST NAS
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Old 12-01-2018, 09:02 PM   #8
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Could be chassis power button faulty. Try don't use the chassis power switch cable and switch on the pc by shorting the 2 pins for the power switch.
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Old 12-01-2018, 09:09 PM   #9
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You got any enemies? Tio hex izit?
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Old 12-01-2018, 09:35 PM   #10
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Are you able to power on using the onboard power button (bottom right of MB)?
Nope. It's lit up but press liao nothing happen. Hold also nth happen
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Old 12-01-2018, 09:36 PM   #11
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Could be chassis power button faulty. Try don't use the chassis power switch cable and switch on the pc by shorting the 2 pins for the power switch.
Tried that. Didn't work. Used flathead screwdriver to touch the 2 points.
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Old 12-01-2018, 09:36 PM   #12
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You got any enemies? Tio hex izit?
Maybe haha these days really suay though
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Old 12-01-2018, 09:41 PM   #13
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Sounds like a case of faulty mobo.
Maybe your bios tio hack something.
Processor
Intel Pentium 3805U @ 1.90GHz
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MSI MS-B0961
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Intel HD Graphics
Memory
8.00GB Single-Channel DDR3
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Old 12-01-2018, 09:41 PM   #14
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maybe u try disconnect SSD+HDD+ 980Ti and all USB connections etc....

no need take out.. just unplug all powet cables to these parts ..

if still dont boot then narrow down to cpu or ram or mobo..
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Old 12-01-2018, 09:48 PM   #15
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system specs are as follows:
-CPU i7 7700K
-Motherboard MSI Z270 Gaming M7
-Ram Trident Z RGB 2x8GB 2400MHZ
-Galax GTX 980TI HOF
-SSD NVME Samsung 960 Evo M.2 500GB
-PSU Seasonic X-Series 750W 80+ Gold
-NZXT Kraken X62 cpu cooler
-NZXT Aer 140 RGB fan
-NZXT HUE+

-Phanteks Evolv ATX Tempered Glass Satin Silver case
OT post, but I'm just imagining if Corbell one day could ever do "premium servicing" by accepting the entire rig if all parts were under them
Processor
Intel i5 7300U vPro
Mainboard
Compal LA-E131P
Graphics Card
Intel HD620
Memory
Micron 24GB
Storage
Samsung 860 Evo 256GB
Casing
Compal P73G
PSU
Chicony 65W Class VI
OS
Windows 8.1 Embedded Industry Pro

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