iGPU overclock in AMD CBS does not do anything. Asus Prime A320M-K (latest bios) , R3 3200G.

[petrolhead773]

I know A320 chipset can't overclock, but why does it have OC settings in the BIOS??? Am I missing something or what?

 

[tabascosauz]

What are you trying to set by punching in 40? The box is in millivolts. ie. 1.2V = 1200

All Vega iGPU overclocking on AM4 is half-baked as hell and you just have to experiment for yourself. Usually iGPU OC on supported boards and APUs is handled by settings in the main Tweaker page, not CBS. If you don't have anything on the main page, pretty good indicator the board won't do it.

Yes A320 allows XMP, but I'm not confident that any other type of OC is allowed on A520.

On all AM4 APUs, iGPU OC voltage is always tied to VSOC, except for iGPU Curve Optimizer on Cezanne. If iGPU OC is functional, you will see VDDCR_GFX = VSOC at all times.

As a last resort, you can see if Ryzen Master supports iGPU OC for your hardware.

 

[petrolhead773]

What are you trying to set by punching in 40? The box is in millivolts. ie. 1.2V = 1200

As the tooltip at the bottom says it's VID value NOT voltage. According to this post VID of 40 is about 1.15v. Since it wasn't doing anything from the start I thought I had to put in a voltage in the box to enable the OC

All Vega iGPU overclocking on AM4 is half-baked as hell and you just have to experiment for yourself. Usually iGPU OC on supported boards and APUs is handled by settings in the main Tweaker page, not CBS. If you don't have anything on the main page, pretty good indicator the board won't do it.

Yeah that's the disappointing part, the only options in the main menu are some voltage and amp tweaking as well as XMP.

As a last resort, you can see if Ryzen Master supports iGPU OC for your hardware.

Sadly Ryzen Master just says my chip isn't supported and only allows to read the values, can't adjust anything not even XMP


Bummed out that they added this useless menu that does nothing, wasted couple hours looking and trying to get it to work. The previous BIOS didn't even have it, so not sure why they even added it. The newest bios is literally brand new, came out of beta version literally 4 days ago

 

[tabascosauz]

As the tooltip at the bottom says it's VID value NOT voltage. According to this post VID of 40 is about 1.15v. Since it wasn't doing anything from the start I thought I had to put in a voltage in the box to enable the OC

Yeah that's the disappointing part, the only options in the main menu are some voltage and amp tweaking as well as XMP.

Sadly Ryzen Master just says my chip isn't supported and only allows to read the values, can't adjust anything not even XMP


Bummed out that they added this useless menu that does nothing, wasted couple hours looking and trying to get it to work. The previous BIOS didn't even have it, so not sure why they even added it. The newest bios is literally brand new, came out of beta version literally 4 days ago

Hmm that may be the case, but that post is also from 5 years ago. Much has changed in AGESA, since the contemporary iGPU-equipped parts are now Renoir and Cezanne, and they use neither VID value nor anything from the CBS menu for iGPU. The menu might simply be an old holdout that doesn't work anymore.

AGESA often contains features within CBS, PBS and AMD OC that are irrelevant for your actual hardware - simply included in the AGESA and the board vendor might occasionally forget to hide them like they usually do.

In any case, I doubt there's any value to setting VID anyway even if it was functional, since VDDCR_GFX = VSOC is an auto-rule on all AM4 APUs when specifying a static iGPU core OC.

It already takes a fair bit of work in Fabric/mem OC as well as GPU core OC to extract more performance out of even Renoir and Cezanne APUs - Picasso is much slower and worse scaling in both those areas, in addition to a much slower CPU core.

 

[petrolhead773]

It already takes a fair bit of work in Fabric/mem OC as well as GPU core OC to extract more performance out of even Renoir and Cezanne APUs - Picasso is much slower and worse scaling in both those areas, in addition to a much slower CPU core.

Yeah my RAM just won't budge over 3200mhz matter what. Currently it's at 3200mhz CL16-17-17-34 at 1.325v and fully stable. Tried 3266mhz with stupidly high settings at 1.4v CL22-22-22-42 but it just doesn't post. Not sure if it's Zen+ being Zen+ or because I reached my ram's physical limit (I'm using mixed ram and one of the sticks is Corsair Value clocked at 2133mhz)

Another weird behaviour that I encountered is that after updating my BIOS (was running one from early 2020) my CPU won't go over 39x multiplier to the supposed 40x. I will probably just downgrade the BIOS to an older version because this new "updated" one is full of bugs and features that don't do anything

 

[Deleted member 185158]

I had this board at one time. It's a completely locked down board and supports no overclocking at all.

The only way around the A320 chipset locks is to get a B450 motherboard instead.

Why is there OC settings? Cause whoever wrote the bios is a moron and wanted to give users a run around. No other logical reason.

However, it was once said that early release or pre release bios (factory shipped?) May have OC settings that stick, but I never experienced that. I donated the system with a Ryzen 1200 sorry edit: Ryzen 220ge installed to an upstarting local auto shop.