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well, 80+ bronze starts at 20% load, so your PSU has 85% efficiency at 100W load. Below that, who knows. The supermicro platinum 920W had atrocious efficiency at 50W load.

Maybe these points are connected - depending on the PSU wattage and it's low power efficiency, you could save a lot of power. I had a system go from ~80W on redundant supermicro 920W PSUs to ~50W on a Corsair SFF Platinum 450W.

I use them as Bootdrive for TrueNAS

That board only ever supplies 1,2 V to the RAM, you can't change that. Any RAM stick that needs more than 1,2V will not work

You need QSFP+ MPO transceivers and MPO to 8X LC fanout cables

also i am interested in the power consumption of this chip

If 19" short depth counts as compact, then: 1U: Inter-Tech IPC 1U-10240 2U: IPC-G225

how much power does the plx 88024 consume? does it support aspm?

thank you! a shame that all these cards are bandwith constrained

I have a few questions about the sata card: does it support aspm? how is the power consumption? does it run on pcie 3.0 x4 or x2?

why dont you use something that was built for this: https://forums.servethehome.com/index.php?threads/new-chinese-pcie-switch-board-gpu-testing.52488/

lspci output from the u.3 version should suffice

I'm still waiting

how much is the idle power consumption?

could you post the "lspci" output for the micron 7450 pro 3,84 TB e1.s and 2.5" models? do these support tcg oal 2?

thank you very much for the data. so the Intel drives support ASPM, and the Samsungs Opal 2.0. Too bad i want drives that can do both.

could you post "lspci" screenshots (checking for aspm support) and images of the drive labels (tcg opal 2.0 support - is there a PSID listed) of both models? Which firmware is on the drives?

i have 4x PM983 960gb with a pcie x16 quad m.2 card

you sound like you don't have any clue how that works. just define a custom fan curve in whatever you use to control the fan speed. for example in the bmc fan control utility ... there you should be able to limit the maximum pwm percentage. well, then you need a better connector - crimp...

Why should any sane person undervolt a PWM Fan? just lower the pwm frequency