Gigabyte GA-AB350M... with a 3900X

Orcvader · 20 Jan 2023 at 13:35

Been given a PC with a GA-AB350M-Gaming 3 with a 1600X, also have my 3900X sitting on the shelf. Now I know the 3900X can work in the board with the latest BIOS... but is it a good idea? I've seen some videos on other B350 models saying at stock it's usually fine, but it does push the VRM to the limit.

Orcvader · 20 Jan 2023 at 13:44

rare said:
It will work, just would be beneficial to have good airflow around the VRM’s and obviously don’t over lock it haha

Good shout, probably will stick a tiny fan over them just in case. No plans to overclock but will most likely undervolt it.

Orcvader · 21 Jan 2023 at 19:33

Wing-Man said:
what do you plan to do with the chip. if you plan of running it rendering for 8hr a day then no you will burn your house down haha..
gaming and stuff like that your fine as the CPU will never be pinned at full load for more than 1 or 2 mins at a time

I'm planning to sell it to a friend who needs a PC for their games design course. It'll do the odd blender render every now and then but at most only roughly a couple of hours a month. Gaming I know will be fine, it's just when they do rendering which was what worried me, but they have a rather small budget so couldn't fit in a better board.

Orcvader · 4 Feb 2023 at 16:37

Just an update on this for anyone else who plans to do a similar move, the 3900X is working great on this board. PBO disabled, couldn't work out where the undervolt setting was but did enable eco mode. Swapped the cooler for a Nocuta D12L which also blows over the VRMs too (previous cooler was blowing bottom -> top), and during Cinebench they stayed well within comfortable temps. Multicore does drop a bit because of eco mode but gaming performance is still roughly the same, still a huge upgrade for my friend who's been stuck with a 2nd gen Ryzen APU laptop and they've been happy with it, especially with Blender/Maya performance.

Orcvader · 7 Feb 2023 at 12:54

TrojanWhore said:
Great to hear it's working well, I think undervolt is probably described as 'offset voltage' (if available, I've never looked!), but if he's happy with performance at eco mode then that's probably safer and easier!

Has he tried it with a sustained (render) workload yet?

Yup, with both Blender and Maya. Temps on both CPU and VRMs not even close to worrying levels. The D12L is working wonders.

Tried looking for offset voltage too but couldn't see anything related to it, compared to my X570 when I had the 3900X the available voltage options is definitely a lot smaller, hence why I decided just to go the eco mode route.