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XMP CLDO VDDP and CLDO VDDG voltages too high?

 
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post #1 of 4 (permalink) Old 01-19-2020, 06:37 AM - Thread Starter
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XMP CLDO VDDP and CLDO VDDG voltages too high?

Setup

MOBO: MSI MPG x570 Gaming Pro Carbon Wifi
CPU: Ryzen 3900x
GPU: MSI RTX 2080 Super Gaming x Trio
Ram: G.SKILL F4-3600C17D-32GTZR 32 GB (16 GB x 2) Trident Z RGB (Hynix DJR die)

I am running stock CPU and after failing many times to pass memtest86 with overclocking my RAM I just enabled XMP, and called it a day.
However, looking in Ryzen Master I am worried that the CLDO VDDG and CLDO VDDP voltages are a bit high, especially the VDDG.



Should I turn them down manually and to what values? Thanks.
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post #2 of 4 (permalink) Old 02-09-2020, 09:21 PM
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My MSI X570 ACE does the same thing, even after I explicitly find the settings in the AMD Overclocking menu and set them back to Auto or different values. It would be strange for MSI to "insist" on those voltages if they were unsafe, but the way they are set makes proper control much more difficult than it should be.
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post #3 of 4 (permalink) Old 02-09-2020, 09:59 PM
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vddp/vddo should be 0.95, and there's one setting that takes it in milivolts so you have to put in 950


I personally just run them slightly overvolted at 0.96/960

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post #4 of 4 (permalink) Old 02-10-2020, 02:29 AM
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Quote: Originally Posted by Elfocrash View Post
Setup

MOBO: MSI MPG x570 Gaming Pro Carbon Wifi
CPU: Ryzen 3900x
GPU: MSI RTX 2080 Super Gaming x Trio
Ram: G.SKILL F4-3600C17D-32GTZR 32 GB (16 GB x 2) Trident Z RGB (Hynix DJR die)

I am running stock CPU and after failing many times to pass memtest86 with overclocking my RAM I just enabled XMP, and called it a day.
However, looking in Ryzen Master I am worried that the CLDO VDDG and CLDO VDDP voltages are a bit high, especially the VDDG.

Spoiler!


Should I turn them down manually and to what values? Thanks.
I would.

SOC voltage dedicates supply to CLDO_VDDP & CLDO_VDDG. As SOC is 1.1V CLDO_VDDP & CLDO_VDDG can not be greater than it.

Do you have a AMD CBS and or AMD Overclocking menu in UEFI? you may find if you set voltages there Ryzen Master may reflect them.

I have not used a MSI AM4 mobo, on my ASUS ROG Crosshair VII Hero Wifi in main part of UEFI I leave CLDO_VDDP & CLDO_VDDG on [Auto], SOC Voltage mode as [Offset/+/Auto], then I adjust those 3 voltages in AMD menus and Ryzen Master will reflect them.

Be aware you wanna have ~50mV difference between SOC voltage and CLDO_VDDG, not set value in UEFI, but effective. For example you set SOC of 1050mV in UEFI, HWINFO SOC SVI2 TFN shows ~1.025V on average, then CLDO_VDDG can only be set as 975mV, if you want greater CLDO_VDDG you'd need to increase SOC.
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cldo , vddg , vddp , voltage , xml

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