Problem with Ryzen 1700x Overclock

[Draydince]

I have a Ryzen 7 1700x in an Asrock X370 Taichi. I can overclock up to 3.8ghz stable, but anything past that I crash.

While it sucks, I've accepted the fact that I lost the silicon lottery and have left my processor at 3.8 and given up trying to push it any higher.

I can run through all the regular ring of tests, Intel Burn Test, Aida, Prime, etc and I pass them all.

I have a Scythe Mugen 5, and the highest temps during stress testing were in the low 70's, but while gaming it's usuallly around 55-60c

The problem is that while playing some more demanding games like Star Wars Battlefront or Ark, my processor has moments where it spikes up to 3.85 or even 3.9. Just a very small window, then settles back down to 3.8 

I believe that these moments of speed hikes are causing instability, and I crash. Sometimes just a game crash, sometimes an entire system hang that requires a hard reboot.

I have core performance boost disabled, and for the life of me can't figure out why they're trying to jump up even higher.

I have it set for a static 3.8ghz, 1.287vcore, core performance boost disbaled, c6 and cool and quiet disabled. I'm not seeing anything in my bios that would give me an auto boost like that besides core performance boost, which has never been enabled.

Has anyone else experienced their Ryzen chips randomly clocking themselves higher than intended? And if so, did you find a solution?

I know it will be asked, so just to put the information out there I have a gtx 1070 with the most recent drivers and I doubt that is causing the issue, as this card was pulled from my old FX build and functioned just fine then.

[knightslugger]

you need more vcore than 1.287v buddy. i'm surprised there's even life there at 38x with voltage that low.

[Draydince]

I started at 1.375 just because that's about the highest I would feel comfortable running 24/7 - and did a few days worth of testing to find the absolute lowest vcore I could get without crashing, then gave it an extra bump up just to be safe. The problem I'm addressing is the cores randomly bumping themselves higher than they're set for, as if core boost is somehow overriding despite being disabled. Even if it were enabled, its single core boost is only 3.8 anyway so I don't understand why it sometimes shoots up to 3.9. Those hikes in speed are the only times I experience crashes. 

[knightslugger]

8 hours ago, Draydince said:

I started at 1.375 just because that's about the highest I would feel comfortable running 24/7 - and did a few days worth of testing to find the absolute lowest vcore I could get without crashing, then gave it an extra bump up just to be safe. The problem I'm addressing is the cores randomly bumping themselves higher than they're set for, as if core boost is somehow overriding despite being disabled. Even if it were enabled, its single core boost is only 3.8 anyway so I don't understand why it sometimes shoots up to 3.9. Those hikes in speed are the only times I experience crashes. 

well by overclocking it's 3.8 on multi-core and single core. XFR is disabled unless you tweek P-States. It might just be bad reporting... iand if it's not then you need more voltage.

 

as someone who's cooked a 1700X already, 1.375 can be run all day every day until the end of time. it's when you start pushing beyond 1.4 that you really get into some eyebrow furring territory.

[Draydince]

Here's a picture of the problem I'm having. This was taken after 2 hours of gaming. The hottest the CPU got was 61c, and the cores were boosting up to 3.87 despite being set at a static 3.8. Unfortunately I'm unable to get a picture of the rare times when it boosts up to 3.9, as it crashes when it boosts that high. For the life of me I can't figure out why it's auto boosting.

[knightslugger]

AH, that could be BCLK fluctuating. that can mess with RAM speeds and cause a crash if it goes too far.

[Draydince]

Is BCLK on by default? I never messed with any of those settings. The only thing I did was set my core speed, voltage, ram XMP profile to 3200, disable cool and quiet/c6/and core performance boost.

[knightslugger]

1 hour ago, Draydince said:

Is BCLK on by default? I never messed with any of those settings. The only thing I did was set my core speed, voltage, ram XMP profile to 3200, disable cool and quiet/c6/and core performance boost.

BCLK is the base clock of the system, usually set to 100MHz, but some people like to get exotic with their bus speeds. unfortunately a side effect of that is decreased PCIe bus stability.