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[SOLVED] Machine Randomly Powers Off No Blue Screen

Aug 22, 2019
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Greetings

My system will randomly power off with no warning (like you unplugged the power cable) soon after it will reboot (it always reboots). Heat is not a concern temps do not exceed 70C on any component plus its a dual radiator setup with 1 extra case fan (5 fans total + PSU Fan i guess) . This system was stressed tested multiples times the longest being for 7 hours (Aida64 system stability test all boxes checked and Heaven Benchmark for GPU). The oddest thing is this issue wont occur for days or even weeks. But one day idle or on full load it will just power off. The system is hooked up to a UPS that 1500 va or like 960-980 watts my PSU is a 1000 watts (clean power isn't a issue voltage regulation).

Finished Windows Memory Diagnostic: PASS


Edit: Tightened CPU Block was a little lose and re-seated all RAM moved each stick to a different slot. Checked 24 pin and all other connectors. Issue has not occurred again however its only been a hour. This happens rarely as mentioned before. Still looking for feedback if anyone has any ideas, maybe additional ways to find a fault.

Edit: Issue did reoccur this time system power cycled 3 times in a row. Then just acted normal again.

If any of you have any thoughts or ideas it would be much appreciated all I have is kernel power failure event message (which doesn't really tell you much if anything).

OS:
Windows 10 LTSC (All Windows Updates)

Case:
Fractal Design Define R6 USB-C Gunmetal Brushed Aluminum/Steel ATX Silent Modular Tempered Glass Window Mid Tower Computer Case
https://www.newegg.com/gunmetal-fractal-design-define-r6-atx-mid-tower/p/N82E16811352093


CPU:
Intel Core i7-9700K Coffee Lake 8-Core 3.6 GHz (4.9 GHz Turbo) LGA 1151 (300 Series) 95W BX80684I79700K Desktop Processor Intel UHD Graphics 630
https://www.newegg.com/core-i7-9th-gen-intel-core-i7-9700k/p/N82E16819117958


CPU Cooler:
CORSAIR Hydro Series, H115i RGB PLATINUM, 280mm, 2 x ML PRO 140mm RGB PWM Fans, Advanced RGB Lighting & Fan Control w/ Software, Liquid CPU Cooler. CW-9060038-WW. Support: Intel 2066, AMD AM4, TR4.
https://www.newegg.com/p/N82E16835181152


Motherboard:
MSI MPG Z390 GAMING PRO CARBON AC LGA 1151 (300 Series) Intel Z390 HDMI SATA 6Gb/s USB 3.1 ATX Intel Motherboard
https://www.newegg.com/p/N82E16813144211


RAM:
G.SKILL TridentZ RGB Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16D-16GTZR (2 Sets 32GB Total)
https://www.newegg.com/g-skill-16gb-288-pin-ddr4-sdram/p/N82E16820232476


GPU:
GIGABYTE AORUS RTX 2080 TI 11GB DirectX 12 GV-N208TAORUSX W-11GC Video Card
https://www.newegg.com/gigabyte-geforce-rtx-2080-ti-gv-n208taorusx-w-11gc/p/N82E16814932075

Storage:
SAMSUNG 970 EVO PLUS M.2 2280 1TB PCIe Gen 3.0 x4, NVMe 1.3 V-NAND 3-bit MLC Internal Solid State Drive (SSD) MZ-V7S1T0B/AM (X2 for total of 2TB)

(Both M.2 Slots on board are being used)
https://www.newegg.com/samsung-970-evo-plus-1tb/p/N82E16820147743

Power Supply:
CORSAIR HX Series HX1000 CP-9020139-NA 1000W ATX12V v2.4 / EPS12V 2.92 80 PLUS PLATINUM Certified Full Modular Power Supply
https://www.newegg.com/corsair-hx-series-hx1000-cp-9020139-na-1000w/p/N82E16817139204

Additional Components:
Fractal Design Flex VRC-25 PCIE x16 Extender and Vertical GPU Riser Card Adapter - Black
https://www.newegg.com/p/N82E16812598001
 
Last edited:

Phaaze88

Admirable
Herald
So just so I understand the individual RAM sticks that come in sets are linked in some way? Or are you saying one of sticks are bad? Or are they just in the wrong slots? I really dont understand RAM at this level I can run all the tests thats easy. I really appreciate the response just want to execute this properly.
1)Ram is tested and guaranteed to work as sold.
-You bought 2 separate kits, which weren't certified by the manufacturer to work together.

2)Different kits of the same brand and specs can still fail - it's simply the combination with the highest compatibility rate among mixed kits.
-Even though you essentially purchased the same kit twice, they should be fine together... in theory. If they happen to come from different batches in production though, compatibility would be questionable.

3)The first suspect in such reboots/restarts is normally the power supply - refer to what I posted previously about it.
-Freezing/crashing, stuttering, BSODs, and reboots are symptoms of incompatible kits.

So, you need to test with one kit - again, assuming you haven't completely mixed the sticks up by now...
 
Nov 3, 2019
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"Quick and dirty" answer:

Hi ! Was on diff business but immediately thought (older configuration) only thing that did/does that to me was computer thinking/real GPU overheating->instant shutdown. I solved by picking overclocking program and turned GPU to lower than defaults. So, follow temperature (compared to BIOS temp max if applicable). Worth trying ?

[Edit: yes, read you've followed temp etc, but did on me same-no difference when idle or not, just shutdown. But as said, only thing that's ever done it to me, edit2: no, didn't have too hot GPU (said logs) but haven't shutdown after that. Also MSI mobo. I clock normal when playing, when idling on 24/7 I load set to lower GPU almost everything, haven't diagnosed which part did the problem to me]
 
Last edited:
Nov 3, 2019
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Yes, but the point in clocking down is you can go to store where you bought your stuff and say it's faulty, NOT that you'd be powering it down all the time.
 

Phaaze88

Admirable
Herald
Well... normally this points to a psu issue, but that Corsair HX should be a pretty good unit, unless you bought a lemon...

Looking at the rest of your specs though, there is one particular red flag, that is also a cause of reboots:
RAM:
G.SKILL TridentZ RGB Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16D-16GTZR (2 Sets 32GB Total)
You probably lost the mixed ram lottery. Leave the first kit in(I hope you kept track of which sticks went with which kit!), and run tests with the following:
-Memtest86
-Prime95 Blend Mode
-AIDA 64 Memory Test
 
Aug 22, 2019
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So just so I understand the individual RAM sticks that come in sets are linked in some way? Or are you saying one of sticks are bad? Or are they just in the wrong slots? I really dont understand RAM at this level I can run all the tests thats easy. I really appreciate the response just want to execute this properly.
 

Phaaze88

Admirable
Herald
So just so I understand the individual RAM sticks that come in sets are linked in some way? Or are you saying one of sticks are bad? Or are they just in the wrong slots? I really dont understand RAM at this level I can run all the tests thats easy. I really appreciate the response just want to execute this properly.
1)Ram is tested and guaranteed to work as sold.
-You bought 2 separate kits, which weren't certified by the manufacturer to work together.

2)Different kits of the same brand and specs can still fail - it's simply the combination with the highest compatibility rate among mixed kits.
-Even though you essentially purchased the same kit twice, they should be fine together... in theory. If they happen to come from different batches in production though, compatibility would be questionable.

3)The first suspect in such reboots/restarts is normally the power supply - refer to what I posted previously about it.
-Freezing/crashing, stuttering, BSODs, and reboots are symptoms of incompatible kits.

So, you need to test with one kit - again, assuming you haven't completely mixed the sticks up by now...
 
Aug 22, 2019
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Oh wow I didn't know that was how it worked at all. Been up with no problems for about 4 days now on. I did switch all the sticks around so finding out will be fun. Maybe use serial numbers to find out somehow. Re-seated everything as well. If the problem occurs again I will definitely return both sets and by a set of four. Thank you for the advice I've run so many tests and nothing has shown any issues. Your solution seems like the only thing at this point that could be causing the problem.
 

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