Question

Pc freezes then restarts

Jun 22, 2018 8:14AM PDT

I built my new pc and installed new windows, but when i'm browsing web or playing games my freezes and then pc restarts, or sometime there is no freezes pc just restarts without any warning, this happens about every 2 hours.
Here is what i tried testing ram memory, downclocking gpu, testing psu with multimeter, gpu temps on idle are around 34 degrees celsius, cpu idle temps around 36 degrees celsius.
if anyone knows how to fix this let me know.
Here are my specs
Windows 10 Pro 64-bit
MOBO - ASRock AB350M PRO4
CPU - AMD Ryzen 1400
RAM - 2X4 Kingston Fury 2400MHz DDR4
GPU - Amd Gigabyte R9 270x Windforce
HDD - 465GB SAMSUNG HD502HJ
SSD - Kingston A400 120GB
PSU - FSP Aurum 500W 80+ Gold

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Comments
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Answer
Well, it is a Ryzen.
Jun 22, 2018 8:19AM PDT

I'm running into newbies that build Ryzens and SKIP, OMIT and are SCARED of the REQUIRED BIOS update. This is not optional.

The GPU is also suspect at the age or power it may pull. Try another GPU after you verify the BIOS is the latest.

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Answer
A few suggestions
Jun 23, 2018 10:38AM PDT

In my experience, this usually represents a heat issue, although it looks like your temps are OK. Next I would consider a bad RAM stick -- try it with just one, then the other to see if it still crashes. If it doesn't then you have your culprit. Could be a bad CPU, but less common. Still, try running your system at lower speeds just in case. Finally, make certain you have all the latest drivers for your components. Good luck -- I know this can be a frustrating problem to solve.

KG

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RE
Jun 23, 2018 8:59PM PDT

DDR4 RAM must be installed in pairs.

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No it does not
Jun 24, 2018 5:02AM PDT

Where did you get that idea?

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Its not ram
Jun 27, 2018 2:33PM PDT

It's not ram and it's not cpu, i found out that my cpu voltage was on auto and mb set voltage to 1.5v i set it to manual and lowered voltage, it looks like it works pc hasn't crashed for 4 hours i'll let it work for whole day if pc doesn't restart i fixed it.

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Or
Jun 27, 2018 3:01PM PDT

The BIOS was out of date and the BIOS sets this value and if out of date, you have to do this manually.

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version
Jun 27, 2018 3:03PM PDT

Bios version is 3.40

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Very outdated.
Jun 27, 2018 3:37PM PDT
https://www.asrock.com/mb/AMD/AB350M%20Pro4/index.asp#BIOS

I run into far too many Ryzen disaster machines. The fear that folk have updating the BIOS appears to be a big contribution to machine issues. There's little I can do if folk don't learn how to start off with a new build. It's pretty simple. Update BIOS, take BIOS defaults, install OS, drivers from makers and apps if the machine calls for it.

It's a simple recipe that new builders have the hardest time learning.
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Asrock app shop doesn't show 4.70
Jun 27, 2018 3:39PM PDT

Asrock app shop doesn't show 4.70 bios, and i don't have usb at this time.

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This is why
Jun 27, 2018 4:01PM PDT

I continue to do these updates the old fashioned way.

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Installed 4.70
Jun 27, 2018 11:17PM PDT

I borrowed usb and flashed 4.70 bios.

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Answer
Parts
Jun 24, 2018 5:51AM PDT

You have the wrong ram.
You should have bought 2666 but that's not worth fixing.

Send that psu back it's a quad rail thing.
Shop for a 600w single rail unit.

Why did you fit a sata 2 hdd in the machine?

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No
Jun 27, 2018 2:30PM PDT

No ram is okey, and psu good, hhd is from my old pc. And i think i fixed the issue my cpu voltage wan on auto and mb set voltage to 1.5v i set it to manual and pc hasn't crash for 4 hours i'll let it work for one whole day if it doesn't restart it's fixed.

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