Ryzen System Starts, Stops, Starts, Stops, Starts, Stops.... Is it the RAM?

Tessier-Ashpool_AI

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Jun 15, 2017
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Some background:

Motherboard - Gigabyte AX370 Gaming K5 (BIOS flashed to F3 (i.e., June 16th update)
CPU - Ryzen 5 1600 - not overclocked, Wraith Spire cooler
GPU - Gigabyte Windforce OC 1080, not overclocked
RAM - 2X8GB DDR4 3000MHz Corsair Vengeance LPX
PSU - 550W EVGA G2
Case - NZXT Elite with included 120mm fans at rear, top and two Fractal Design 140mm intake fans
SSD - Samsung EVO 250GB
OS - Windows 10


I have looked at similar problems, but none of them are exactly the same, so hopefully someone with a lot more knowledge of this stuff than I have can help me out...

I built my first computer the other night, having been a longtime Mac user. I tested the PSU (EVGA 550W G2) using the EVGA-provided tester prior to building, and the PSU passed its tests.

Once I got the build together, everything worked fine. It took awhile to get Windows working properly, as I had created my flash drive on a Mac, and the system didn't seem to like that. Once I created a bootable USB in Windows, things worked. Anyway, once everything was up and running, I didn't seem to have any issues.

I have 2X8GB DDR4 3000MHz Corsair Vengeance LPX (CMK16GX4M2B3000C15W), which Corsair's website lists as working with Ryzen, but Gigabyte doesn't list as a compatible RAM at this stage as far as I can tell. The RAM was running at 2133MHz, so I enabled XMP on the updated BIOS. At that point I was getting the expected 2933MHz, but this is when the instability seems to have cropped up...

On system start-up, whether after a reset or a full shutdown, the CPU fan would spin up, but would stop and restart in about two seconds. After three reboots, the motherboard LEDs would light up, and the CPU, VGA and DRAM LEDs would light up in cycle and shut off (as they are supposed to when the system is working properly), but the BOOT LED wouldn't turn on and the system would shut down again. This entire process (initial short start-ups followed by a longer one) would then repeat.

I tried powering down the system and unplugging the PSU, but when powered up, the same issue would occur. I eventually cleared the CMOS, and things seem to have stabilized. Now I can restart or shutdown, but my memory is again at 2133MHz.

I don't have other DIMMs (or any other components for that matter), nor can I afford to buy more at this point, so I can't swap things in and out for testing.

I guess my question is... Should I just chalk this up to the growing pains of Ryzen and RAM, or should I be worried that there is something more serious going on here?

I realize I wrote a lot here, but I thought maybe more information would help. Any help you can offer would be appreciated.

EDIT: I just want to add that I have run the NovaBench and Unigine Heaven benchmarks, and nothing has seemed out of the ordinary, although I don't know if that matters at all for this sort of thing.

 
Solution
Yes Ryzen is a bit touchy with RAM but most RAM has only been tested on Intel to be stable at those speeds. I would suggest you try again but this time set your RAM to 2666 the max stock setting without running overclock.

Kunra Zether

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Jun 25, 2016
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I think with what you have said we have already narrowed it down to the motherboard, ram, and CPU. I would always start with the easiest solution. Since everything runs before you enable xmp and up the frequency of the ram I think it's safe to say that this most likely has to do with a bios issue or a compatibility issue with the ram and the motherboard. First thing to do is contact gigabyte's customer service and make sure it's not just an issue with the frequency of the ram. Then I would try and make sure the bios is currently installed and fully up-to date as well as all of your drivers.
 
Yes Ryzen is a bit touchy with RAM but most RAM has only been tested on Intel to be stable at those speeds. I would suggest you try again but this time set your RAM to 2666 the max stock setting without running overclock.
 
Solution

Tessier-Ashpool_AI

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Jun 15, 2017
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Thanks for this response. The issue I have is that enabling the XMP profile in the BIOS only gives me 2933MHz, as that is the only XMP profile available. How would I go about getting to 2666? I know this is a n00by question, but it is all I've got.
 

Tessier-Ashpool_AI

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Jun 15, 2017
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Thanks for taking the time to respond; I appreciate it. I will get in touch with them this week to see if 2933 is simply out of the question.
 

This video shows how to change it to 2400 and trys 2666. Try it using 1.35~1.4v as the video is back in April so maybe the bios has got it working.
[video="https://www.youtube.com/watch?v=7nl7Ni4MRiQ"][/video]