I've built an ASUS Pro WS W680-ACE system last night with 2x KSM48E40BD8KM-32HM 32GB ECC and a 13700K.
I installed Windows to update the ME Firmware and checked ECC, Windows reported ECC status "5" which is good AFAIK. And of course I updated the BIOS to 2305. After the BIOS Update & settings reset, memory was @4800MHz and >1h MemTest86 10.3 reported no problems.
Then tried to install Proxmox 7.4 which failed due to the X server not working with the iGPU which I was unable to solve. So I put a semi-old Radeon in the system and removed it right after installing proxmox (removing the GPU reordered the network ports in proxmox! Weird, but this was something I knew how to fix.)
Everything is fine now, very happy with the ASUS W680 system. So glad I did hold off and avoided the utter horror that is the MW34SP0.
Board was a pleasure to work with, Thermalright contact frame & Dark Rock Pro 4 cooler fit well. Board has no RGB header(s) btw
My BIOS setting recommendations for low power usage as a Virtualization host:
- Advanced =>
- Platform Misc => Native ASPM Enabled
- CPU Configuration => Active Efficiency Cores ⇒ 0
- CPU Configuration => CPU Power Management Control =>
- C-States: Enabled
- Enhanced C-States: Enabled
- Package C-State Limit: C10
- System Agent => VMD Setup ⇒ Enable VMD: Disabled
- PCH Storage Configuration:
- Thunderbolt Configuration ⇒ PCIe Tunnering over USB4 ⇒ Disabled
- APM Configuration:
- Restore Power Loss: Power On
- Power on by PCI-E: Enabled
- Onboard Devices
- HD Audio: Disabled
- Connectivity Mode: Disabled (es gibt doch eh kein WLAN&BT?)
- Q-Code LED Function: Auto (after POST, Q-Code displays cpu temperature!)
- Serial Port: disabled / Parallel Port: disabled
- Boot ⇒ Boot Configuration: Fast Boot: disabled
- Tool ⇒ Armoury Crate ⇒ disabled
With Proxmox installed and no further optimizations (CPUgovernor is still 'performance') and 1 semi-idle Windows 10 VM running the system is currently using ~24-25W (with one 980 Pro 'OEM Edition' M.2 1TB installed so far). I'm sure further optimizations could be possible both in the BIOS and in Proxmox to reduce power draw even a little further.