Does anyone happen to know if any of the readily-available Epyc 4005 motherboards (e.g. AsRock B650D4U, Gigabyte MC12-LEx, Supermicro H13SAE-MF) allow CPU cores to be disabled, and/or if you can easily force an "eco" mode or other low-power setting? Basically, I want to limit max TDP, so I can get away with a smaller heatsink/fan/enclosure and not have to worry about thermals.
For more background: I want to upgrade my current firewall (CWWK n5105 device running opnsense and pi-hole under Proxmox). I want something with at least two 10gbps SFP+ ports and a bit more CPU muscle. And I want remote/out-of-band management (i.e. IPMI). For this use-case, I don't need a tremendous amount of CPU power, so previous-gen embedded options like Xeon D-1541, Epyc 3201, C3758 are naturally appealing. But, as I've researched parts, I don't have to spend too much more to get one of these Epyc 400x motherboards and something like a Ryzen 5 9600x. Then I get a modern, modular platform, IPMI, and PCIe expansion (I already own SFP+ 10g NICs). The only downside is that now I'm using a part with a much higher TDP, and needs additional cooling. In the past, I've worked with motherboards whose BIOSes allow cores to be shut off. The most recent motherboard I've worked with, the Gigabyte MC12-LE0 (AM4/B550) does not have a CPU core disable feature. So it makes me wonder if this is a trend, for whatever reason.
I've tried looking at the manuals for the boards I mentioned - and they don't appear to have an "active cores" or "disable cores" feature, but it also looks like the manual doesn't go into detail of every possible BIOS option.
Also - while I'm at it - any reason to choose one of these motherboards over the other?
For more background: I want to upgrade my current firewall (CWWK n5105 device running opnsense and pi-hole under Proxmox). I want something with at least two 10gbps SFP+ ports and a bit more CPU muscle. And I want remote/out-of-band management (i.e. IPMI). For this use-case, I don't need a tremendous amount of CPU power, so previous-gen embedded options like Xeon D-1541, Epyc 3201, C3758 are naturally appealing. But, as I've researched parts, I don't have to spend too much more to get one of these Epyc 400x motherboards and something like a Ryzen 5 9600x. Then I get a modern, modular platform, IPMI, and PCIe expansion (I already own SFP+ 10g NICs). The only downside is that now I'm using a part with a much higher TDP, and needs additional cooling. In the past, I've worked with motherboards whose BIOSes allow cores to be shut off. The most recent motherboard I've worked with, the Gigabyte MC12-LE0 (AM4/B550) does not have a CPU core disable feature. So it makes me wonder if this is a trend, for whatever reason.
I've tried looking at the manuals for the boards I mentioned - and they don't appear to have an "active cores" or "disable cores" feature, but it also looks like the manual doesn't go into detail of every possible BIOS option.
Also - while I'm at it - any reason to choose one of these motherboards over the other?