Hi, I have been looking at building an EPYC server, since I need more PCIe lanes for add-in cards than non-server solutions provide (or EPYC 4004/AM5 for that matter). I have found what looks to be quite a nice MB that has what I need, AsRock Rack Rome8D-2T, and I am wondering if the non-P (i.e. the dual-socket) SKUs will work in said single-socket board - it’s a bit unclear reading websites and spec sheets - I’d like to use a 7272 if possible.
Interested to hear your thoughts!
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Sir
I am not sure about that particular board but on MZ72-HBO rev 4 (7003 series) and on MZ73-LM0 (9004 series):
The single socket skew will work in a dual motherboard in Socket 0
-the secondary bank of ram in socket 1 may be a miss without a populated socket
I had an ASrock Epyc 7003 dual board but never tried a single cpu series in it, only the 7773x
I am considering two AMD EPYC 7773X and was wondering if anyone knows of a website besides Ebay where I can purchase second-hand 7773X.
Hmm, I am wondering about the opposite case, really, using a dual socket SKU in a single socket board …
dual socket skew works fine/indifferent in a single socket board sir
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Awesome. Great to know. Thanks <3
I was able to get two retail/oem vendor unlocked 9684x from Parts Cafe’ on EBay for 550 each less than any Chinese seller. Delivered on 3rd day from order. Vendor is awesome, I’ve bought from him several times, including my prior dual 7773x
he even tried to pair /similar production numbers for me
worth considering
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From the little research I’ve done on EPYC motherboards with dual sockets (CPUs), you need to populate the secondary memory socket when both CPUs are installed. For example, the EPYC motherboards I’m considering have two CPU sockets, with two memory sockets per CPU. The minimum number of RAM modules I need is four—one for each memory socket.
I’m referring to the ram surrounding the unused socket,
for epyc you can actually post / boot with just 2 sticks of ram and 1 cpu, done it, got the t-shirt.
However, why would anyone want that system and only have 1 cpu and 2 dimms ???
On side note I did it to flash the bios (with once cpu) because the org bios would not recognize/post the dual epyc cpus as it was not a recent bios,. after the flash, I was able to install both cpus
The BMC let me update the bios and all was right in the world.
Anyhow, you’re welcome to test for yourself of course
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