Waving out to @Airo and @Lost_N_BIOS
tl/dr: can a OEM-CPU XEON Platinum 8124M (runs only on AsRockRack like EP2C621D12 WS) be made to run on other boards like Supermicro (X11DPG-QT)?
@Airo you already mentioned it may be possible since older BIOSes of supermicro did allow those CPUs to operate but I decided to split my question from the other thread and post it here separately.
The Topic is not to make ES-CPUs work with Retail boards, those OEMs are technically retail, sometimes QS.
My target here are the OEM XEON Skylake (and probably Cascade Lake) CPUs, which Intel produced for Amazon AWS Services.
These are slightly altered Versions of regular Xeon Platinum CPUs, mainly with higher supported frequencies.
An example of those, which I might want to use, is the XEON 8124M, wich features 18 Cores at 3 GHz base clock and 3,4 GHz allcore-turbo.
These are specified for 240W TDP, as practicall all available LGA3647 Boards are specified for 205W TDP.
Yet, many sellers on ebay and members of other forums report that those OEM CPUs run on several AsRockRack-Boards, like the EP2C621D12 WS.
Those Boards are also specified dor 205W TDP support, according to user manuals.
So question 1 is: Is it possible to use a 240W TDP CPU in a 205W TPD board anyway, or could I run into trouble like overheated VRMs?
Question 2 is: Would it be enough to just add the cpuid entry for those OEM COUs (050654h) into any desired board’s BIOS to make them run, or do furhter parameters have to be inserted too?
The AsRockRack board is acceptable and maybe a safe bet, but the supermicro one is just neat and provides a bit more flexibility.
But the supermicro is quite an investment while the AsRockRack is rather cheap to get.
So I’d have to make quite sure that these CPUs would run in the Supermicro before I buy one.
I still haven’t decided finally to go for this setup or solution, but some vendors offer those 8124M’s at very affordable prices.
A package setup of two of those together with an AsRockRack board would still cost less than a TR3960 CPU and only little more than a TR Pro 3955.