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Freezing issue guidance wanted

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Erasmus_Tycho View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Erasmus_Tycho Quote  Post ReplyReply Direct Link To This Post Posted: 16 Feb 2018 at 2:19am
What others have said, sounds very much like a component is shutting down due to thermal limitations/protections especially when you mention the "cold boot".
ASRock x370 Taichi V4.4| Ryzen 1800x | 16GB x 2 DDR4 3200 (14cas) | GTX 1080 Ti K|NGP|N | WD NVMe Black 512GB | 2 x 500GB Samsung EVO 960 | Corsair HX1000 | EK Custom Loop (360mm rad + 280mm rad)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2018 at 10:38pm
Originally posted by Xaltar Xaltar wrote:

What kind of airflow do you have around the VRM section? 

If your case is cramped and airflow to the CPU socket area and surrounding components is bad that could easily cause freezing and restarts as the power circuitry triggers thermal protections. Usually a fan aimed down onto that area sorts things out. 


Bingo!

See at lot of this on small board/small case builds.

Quiet does not relate to proper airflow.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2018 at 6:24pm
What kind of airflow do you have around the VRM section? 

If your case is cramped and airflow to the CPU socket area and surrounding components is bad that could easily cause freezing and restarts as the power circuitry triggers thermal protections. Usually a fan aimed down onto that area sorts things out. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote r2b2nz Quote  Post ReplyReply Direct Link To This Post Posted: 15 Feb 2018 at 4:36pm
I've recently built a new machine (my first build in quite a while) with the following components and have been having issues with freezing/reboots in Windows 10, Linux, Memtest86, and even the UEFI setup screen.
CPU: Ryzen 5 1600
MB: ASRock AB350M Pro4
Memory: Kingston HyperX 2x8Gb DDR4-2400 (HX424C15FB2K2/16)
Graphics: MSI GeForce GTX 1050 Ti GAMING X 4G
PSU: EVGA SuperNova G3 550W

I've tried running Memtest86 in Single CPU mode with each DIMMS in all slots and each time the machine either freezes or reboots (no actual errors reported). Strangely when the machine has been off for a while, the freezes/reboots take longer to manifest themselves but once the machine has had a freeze, other freezes happen usually in the 6-8 minute period of Memtesting.

In Windows 10, starting from a "cold" PC, I can sometimes use it for 2 to 3 hours but from then on it will freeze randomly - sometimes after minutes, sometimes after an hour or so.

Have checked the CPU & motherboard temps after a freeze and they are usually sitting at a max of around 50 celsius for the CPU and about 40 for the MB.

I'm wondering if anyone has any ideas about whether this issue sounds more likely to be memory, motherboard, or CPU related so that I know which one I should look to RMA first. Unfortunately I haven't found anyone else with a DDR4 capable machine to test the memory separately.

Any thoughts/advice greatly received!
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