Edited by Jyaku - 11 Sep 2017 at 12:50am

Jyaku wrote: I'm using a Deepcool Gammax 400 air cooler. My CPU temps are usually in the 40's with mild load, 55's under gaming load, but under aid extreme stress test it reaches a max of 72 (according to HW Mon) but max of 56 (according to the ryzen OC utility). I'm running the cpu fan at 80% fixed speed. Hmm I'll try downclocking the cpu but even at stock I was getting bsod's. (These bsod's are not like random shutdowns due to overclock). p.s. I saw your bios and am trying your settings with another offset voltage increase to SOC since I had it at stock before. It hasn't given me a bsod since... but I'll know more the longer it stays stable. I set CPU to 1.35 voltage and a  0.65v offset.

Jyaku wrote: Hi there, Thank you for trying to help parsec. I am using a Ryzen 5 1600 and Windows 10 Education. Currently in my bios I have the following settings.  https://ibb.co/kq0ZeF https://ibb.co/ci8bta 1.23125 base with a 1.3 v offset. I don't have anything under PState and I still can't find Load Line Calibration in the settings as you can see. Could you give me options/ guidance to have a stable 3.8 ghz overclock?  I generally stuck with Gigabyte motherboards in the past and this is my first ASRock so I'm a bit confused by some of the settings.

Your screenshot shows the Offset voltage as +130mV, which is Milli-volts, or 0.130V.

That is the voltage added to, or offset from (+/-) the base VCore, in your case 1.23125V. So your actual VCore is 1.36125V. I was not sure what you meant by a 1.30V offset. If that was the true +offset (1300mV), you would be at 2.53125 volts, and have a dead CPU, if you could add that much offset.

Otherwise, the way Offset voltage works is standard, a base VCore +/- the Offset voltage.

Why you don't have the same VCore options that I do, I'm not sure. It may be the 3.20 UEFI version, or that you are using a Ryzen 1600. As I'm still using 3.00, I'll change to 3.20 later today and see what I get. I'm using a 1700X.

Your OC to 3800 from the max Turbo clock of your CPU, 3600, would be reasonable for an Intel processor, but Ryzen CPUs don't OC much above their max Turbo clock. I'm only at ~100MHz above my processor's max Turbo of 3800MHz. So if your CPU can reach 3.8GHz remains to be seen. But you will definitely need more VCore than 1.36V.

Take your OC down to 3725 with the current voltage and see what happens. Or increase the Offset to 150mV - 160mV and see what happens with the BSODs.

What CPU cooler are you using? What is the CPU temperature, the Tdie if you see that shown in your monitoring program.

What are you using to check VCore in Windows? What VCore do you see in Windows?

Jyaku wrote: 1.23125 base with a 1.3 v offset.

SAY WHAT??????????

Turn it off and reset the CMOS.

1.3v Offset? Bwhahahahaha You're lucky it's not a fireball.

Jyaku wrote: When I bought this board, I was quite happy but over the last 2 months I keep on getting bsod's. They all have the following codes: SYSTEM_SERVICE_EXCEPTION SYSTEM_THREAD_EXCEPTION_NOT_HANDLED PAGE_FAULT_IN_NONPAGED_AREA MEMORY_MANAGEMENT I've upgraded my power supply to a 750 watt EVGA G2 since I thought it was originally the cpu was not getting enough voltage for a stable overclock. But even at stock I get BSOD's. I thought it might be memory to blame but strangely enough.. when I ran memtest when overclocked, I got a few errors. When I ran memtest at stock.. 13 rounds, no errors. My memory is  F4-2400C15D-32GFXR Which is on the QVL list. I've noticed the 3.20 bios has reduced my BSOD's but not been able to eliminate it. And I've also noticed whatever I dial into bios as an overclock.. the actual speed always shows as 25 mhz less.. for example.. 3825 will show as 3791, 3850 will show as 3816 and so and so on unless I use 3825 and 1.23125 volts with a +1.30 voltage offset. I've run out of ideas how to solve my stability problems so any and all suggestions are welcome. P.S. I know my board has LLC in some bios that I've seen but I cannot locate it my bios. How do I get to LLC settings?

I have the same board with a Ryzen 1700X at 3.9GHz, VCore 1.35V + 0.00625 offset voltage, G.SKILL FlareX 16GB at 3066. I do not get any BSODs, except when testing memory over clocks at 3200. At 2933 or 3066 the PC is stable.

What version of Windows are you using? What AMD chipset driver version are you using?

First the slight variation in CPU clock speed is caused by small variations in the BCLK. Instead of being locked at exactly 100.0MHz, the BCLK wanders slightly, from ~99.5MHz to 100.5MHz. This slight difference in the BCLK is not unusual in board's whose UEFI/BIOS does not have a BCLK setting, and our's does not. Mine does the same thing, so I set my 3900MHz OC to 3925MHz, as you do. If the monitoring program you use in Windows showed the BCLK, you'd see the slight variation.

No idea what CPU you are using, but your VCore is low for a 3825MHz OC. Is the sum of your VCore and Offset Voltage value equal to 1.30V?

The CPU LLC setting is right below the Offset Voltage setting in the OC Tweaker screen. I'm still on the 3.00 UEFI, but the LLC option has always been in that location. For example:



Do you have the CPU Frequency and Voltage Change option in OC Tweaker on Manual or Auto? Are you PState over clocking, or using OC Tweaker?

I assume you run your memory at 2400, and have it in the A2 and B2 slots? I suggest increasing the DRAM voltage to 1.25V when using 32GB. You may also need to increase the SOC voltage slightly to 0.950V - 1.00V.