[SOLVED] Ryzen 5 2600 OC

joaomendes04

Commendable
Nov 9, 2017
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Sup guys,

I have a question. I have a ROG Strix B450-f and I am overclocking my Ryzen 2600 to 4025MHz and I set manual voltage to 1.3V + CPU SoC 1.1V.

VDDCR CPU LLC - High
VDDCR SoC LLC - Regular

I'm using HWiNFO64 to see temps and voltages. My question is:

CPU Core Voltage (SVI2 TFN) reports in idle between 1.3V and 1.312V. Under load between 1.281V and 1.294V and I know this happens cause of LLC settings.
On the other hand, CPU Core Voltage under ASUS WMI shows values between 1.341V and 1.395V.

Should I worried with this last voltage? Or should just be worried with the SVI2 TFN voltage?

The temps are around 62ºC running blend on Prime95. I need to stress the system more with blend but I already did 2 hours of RealBench and 30min of blend.

zboQpqZ.jpg
 
Solution
....
On the other hand, CPU Core Voltage under ASUS WMI shows values between 1.341V and 1.395V.

Should I worried with this last voltage? Or should just be worried with the SVI2 TFN voltage?

The SVI2/TFN voltage is the voltage inside the CPU that the cores are seeing. The VCore reading is provided by the Super IO chip of the motherboard from a sense point somewhere along the power plane between the VRM and the base of the CPU socket.

If you move into the realm of 'extreme' overclocking you pretty much need to pay attention to both. You use the difference to get a feel for what the load-line losses are and get a balance between VRM output levels and LLC levels. You want some VDroop (caused by load line) to minimize both...
Sup guys,

I have a question. I have a ROG Strix B450-f and I am overclocking my Ryzen 2600 to 4025MHz and I set manual voltage to 1.3V + CPU SoC 1.1V.

VDDCR CPU LLC - High
VDDCR SoC LLC - Regular

I'm using HWiNFO64 to see temps and voltages. My question is:

CPU Core Voltage (SVI2 TFN) reports in idle between 1.3V and 1.312V. Under load between 1.281V and 1.294V and I know this happens cause of LLC settings.
On the other hand, CPU Core Voltage under ASUS WMI shows values between 1.341V and 1.395V.

Should I worried with this last voltage? Or should just be worried with the SVI2 TFN voltage?

The temps are around 62ºC running blend on Prime95. I need to stress the system more with blend but I already did 2 hours of RealBench and 30min of blend.

zboQpqZ.jpg
You are doing just fine.
 
....
On the other hand, CPU Core Voltage under ASUS WMI shows values between 1.341V and 1.395V.

Should I worried with this last voltage? Or should just be worried with the SVI2 TFN voltage?

The SVI2/TFN voltage is the voltage inside the CPU that the cores are seeing. The VCore reading is provided by the Super IO chip of the motherboard from a sense point somewhere along the power plane between the VRM and the base of the CPU socket.

If you move into the realm of 'extreme' overclocking you pretty much need to pay attention to both. You use the difference to get a feel for what the load-line losses are and get a balance between VRM output levels and LLC levels. You want some VDroop (caused by load line) to minimize both undershoot and overshoot at load changes.

But short of that, for us normal users I pretty much think SVI2 voltage is the most important to watch closely.
 
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Solution
The SVI2/TFN voltage is the voltage inside the CPU that the cores are seeing. The VCore reading is provided by the Super IO chip of the motherboard from a sense point somewhere along the power plane between the VRM and the base of the CPU socket.

If you move into the realm of 'extreme' overclocking you pretty much need to pay attention to both. You use the difference to get a feel for what the load-line losses are and get a balance between VRM output levels and LLC levels. You want some VDroop (caused by load line) to minimize both undershoot and overshoot at load changes.

But short of that, for us normal users I pretty much think SVI2 voltage is the most important to watch closely.

Yeah, I got it. Thank you.

As I like to say, I'm doing a "medium" OC. Meanwhile, I had to drop the clock speeds to 4Ghz cause at 4.025GHz with 1.3V wasn't stable. Also, I set the LLC to medium.

Now I'm getting 1.269V under full load and 1.289V idle to a 1.306V max in SVI2 TFN.

I think there's just no point to increase the voltage to 1.33ish for 25MHz that'w shy I dropped to 4GHz .

Been testing for 1 full day and so far so good.