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Instead of buying 2 EPYC 4004 (4584PX) with marginally useless server features, I stuck 2 Ryzen 7000 (Ryzen 9 7950X3D) in uATX H13SAE-MF server boards with ECC RAM. They include IGPUs, but whatever. They work fine for load testing 100 and 400 GbE NICs.

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For a value solution I'd take then an ASUS B650E/X670E mainboard (with PCIe 5.0 x16 and ECC support) for half the price.

But I'm not aware of a value 400 GbE NIC. Mellanox ConnectX-7 400G costs more than 3x the CPU.

> ASUS B650E/X670E mainboard

No, no, no. Fuck ASUS and you don't understand the use-case.

I acquire gear through gray markets just fine because I'm not paying zillions for commercial channel parts. I can get a 1 port 400 GbE NIC for ~$1k USD. It maybe used or an engineering sample, but it works.

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