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See https://forums.servethehome.com/index.php?threads/a-cost-effective-intel-w680-ecc-server-repurposing-an-hp-z2-g9-motherboard.43943/post-421951

You won't find such an option in proprietary systems like this one, which value stability over functionality/performance.

Thanks, at least this is sorted. turbostat lists that too: cpu0: MSR_RAPL_POWER_UNIT: 0x000a0e03 (0.125000 Watts, 0.000061 Joules, 0.000977 sec.) cpu0: MSR_PKG_POWER_INFO: 0x000003e8 (125 W TDP, RAPL 0 - 0 W, 0.000000 sec.) cpu0: MSR_PKG_POWER_LIMIT: 0x4285a800e383e8 (UNlocked) cpu0: PKG...

I asked a while ago whether anyone tried to repurpose an HP Z2 G9 Tower/Lenovo ThinkStation P3 W680 Tower/Dell Precision 3660 W680-based workstation motherboard and got no response, so I decided to go ahead and do it myself. I managed to buy a second-hand HP Z2 G9 W680 motherboard for less than...

For the record, shorting pins 3 and 5 works to cheat the G9 to think a 125W fan is installed, but only on a 12th gen. I am using an aftermarket fan and this worked so far. It’s also possible to short 3, 4 and 5 to make it shut up about the CPU fan in case it is completely absent. After...

Do you happen to have source for that? I just tried to upgrade from 12th to 13th and the system turns off immediately. I have a Z2 G9 tower and the early revision board, wondering if I am affected by those issues you mention.

Replying to myself, but indeed there is an update: support for EDAC in Alder Lake-N, Raptor Lake-P, Meteor Lake-{P,PS} was added in kernel 6.8: https://lore.kernel.org/lkml/20240106121912.GAZZlFQJdtoGzRxIiE@fat_crate.local/ EDIT: actually, no, this was for igen6 module, which provides In-Band...

FYI, support for EDAC in Alder Lake-N, Raptor Lake-P, Meteor Lake-{P,PS} was added in kernel 6.8: https://lore.kernel.org/lkml/20240106121912.GAZZlFQJdtoGzRxIiE@fat_crate.local/ EDIT: actually, no, this was for igen6 module, which provides In-Band ECC, not a full-blown ECC with dedicated memory.

Is there any update in that matter?

Maybe should have been a bit more elaborate explaining my use case. My 4 LX consumes a whooping 14W with a single DAC connected, despite ASPM and all power saving enabled. My idea is to get rid of 4 LX altogether and switch to Ethernet. 2 ports on the NIC, 2 x 1Gbps. One of those would be for...

Replying to myself, but it seems it is not possible: https://community.intel.com/t5/Ethernet-Products/I350-Controller-bridging-ports-together/m-p/1393520?profile.language=de https://stackoverflow.com/a/63449425/665932

Ah, in such cases I used an extension cord and an additional device of a fixed power draw, like a bulb, and then subtract the Watt measured.

Thanks. But woah, only 0.1W with DAC attached? Is the network interface actually up, per dmesg/ifconfig/LEDs in the back?

For the info on E-Switch, here's from Mellanox: https://doc.dpdk.org/guides/nics/mlx5.html#multiport-e-switch Basically I want to be able to have my WiFi AP (with VLANs) connected to NIC port 1 talk to a passive switch connected to port 2 and all the SR-IOV virtual functions on either of these...

And how much with a DAC connected, if you have one handy?

I am testing on a W680 with Mellanox 4 LX, idling. Without the card, the system is at 6.5-7.5 W. With the card and nothing in the ports, it goes up to 19.5-20.5. ASPM L1 enabled. The system remains 99% in C10 state. I even enabled auto power save on link down. mlxconfig -e q shows no other...

Proxmox 6.5.11-8-pve. amdgpu is blacklisted at this point, haven't tested with it enabled yet.

Well, it works. And I don't know what exactly happened. All I did was removing the Mellanox card from the system to find GPU passed through to Windows without any issues whatsoever and without any errors reported. Then I reinstalled Mellanox NIC and... it still works. No flooding in dmesg, no...

I have all of that and was already using SRIOV. Everything worked flawlessly until I added the Radeon GPU today. But despite that, disabling autoprobing should not stop those VMs from binding to the PCI IDs. Are you sure you didn't do any additional manual steps in regards to vfio-pci kernel...

I have a Mellanox ConnectX LX configured with 8 VFs, running an up-to-date Proxmox with 6.5.11-8-pve kernel. So of those VFs are passed through to my VMs. This worked without issues so far, until today. I added a Radeon RX 6600 XT GPU, with intention to pass it through a Windows 11 VM. The...