it is not Sapphire Rapids issue.
buy ASRock WS W790 ver. 1.0 with HyperBCLK Engine and have fun.
intel has forced ASRock to discontinue the rev 1 motherboard.
at launch of LGA1151 we could OC Desktop processors with BCLK, even Pentium/Celerons,
later Intel stopped this with a Microcode.
NVIDIA...
above 103mhz you have also expect isuues with SATA/NVMe/USB etc issue, all of them use BCLK as clock base.
and there is a per core power limit in non SPR-WS, so you can't reach more than 4100mhz(with luck, silicon lottery)
this is to prevent the thread from damage. once the CPUs PCB touches the socket frame then is no more force applied.
important is a symetric/balanced way of force.
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