Odd OC Ryzen 3

[ShoByte]

Running

MSI B350M

Kingston fury 2666 (Running at 2400) it's what MSI supports

Old sunbeam cooler

Ryzen 1300x

 

Set my Vcore to 1.36 (Mobo takes it to 1.4 under load.)

Set LLC to Mode 1

Set cpu multiplier to 39

Save and reboot, the machine doesn't post.

Shut it down then re power, then it reboots fine

 

Ran aida 64 with temps in the low 60's everything seems to be stable. Why doesn't want to reboot at that OC? any lower it'll boot. But it'll boot every time when I cold boot. It's just when I save the OC and restart the machine it'll fail to boot.

[Nocte]

How long have you tried to wait for the post before determining it doesn't boot?

[ShoByte]

Over a minute, system fires up right away when it's working.

 

Now it's doing it random even on cold boots.

[Ωhmbreon]

The overclock might just be unstable and you need to lower it. I've heard a lot about Ryzen chips having trouble at and above 3.8GHz.

[ShoByte]

What's weird that it's 100% stable, when it boots.

[Ddarlington36]

That doesn't mean its 100% stable like your claiming it to be 

[ShoByte]

I threw everything at it when it did boot. It just wants to boot when it feels like it.

[Ddarlington36]

How long have you had it at this oc before these reboots?

[ShoByte]

About a day and a half, cinebench aida 64 did not crash it at all.

[Ddarlington36]

A day in a half not sure i'd say thats 100% stable in my experience.

I would use programs designed to stress the cpu/ram for the purpose of stability testing to confirm good OC aida64/ Cinebench can benchmark but not really suited for stress testing. Prime95/Occt can do that better just have adequate cooling because it will cause 100% usuage for aslong as its runing.

[ShoByte]

I never liked running prime95 for stress testing, as it creates stupid high temps. It took my 4790k to high 80's to low 90's on a aio.

[Emberstone]

Try running the CPU at 3.8 GHz.

[Columbo]

I have a Ryzen 1200 that runs 3.85ghz 1.28v with 3200mhz ram. It' water cooled by a coolermaster 240mm. For the life of me could never get it to boot 4ghz but I have not spent more than minutes OCing it. The ram was the most difficult to dial in which took me about 15 minutes. I imagine a 1300x ceiling would be 3.95-4ghz before OCing takes a good deal of voltage. 

 

Get it stable and do a hard reset. Power down the computer and unplug it from the wall for 10 minutes and hold the power button down a few times for 10 seconds. Sometimes when Ocing system get a bit weird and need to stabilize at a stable clock speed. Consider running it at stock everything for a couple days as well and then run it at 3.8-3.9ghz. 

 

 

[ShoByte]

I have it at 3.9 using ryzen master @ 3.9 1.4v and it's stable. Kind of a pain to set it every time, but nice if i want to stock clock it for noise.

 

It crashes soon as it goes 4.0 doing cine bench.

[aezakmi]

That vcore is too high, it should work with 1.31V at 4GHz, your LLC isn't working properly going that high

[ShoByte]

i can try  lowering it, far as i remember it'll crash/not boot if i lower it to that.