Epyc Genoa motherboards - where to find them in Germany/EU

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alex_stief

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May 31, 2016
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Been a while since AMDs Epyc Genoa CPUs have been released, and they are actually available on the retail market.
But motherboards seem to be a different story. I am particularly interested in Gigabyte MZ73-LM0 and LM1. Not decided yet which one to get, since I don't even know the prices.
Anyone knows where these can be found on the retail market? My usual suspects, where I bought similar hardware in the past, came up short. I know that some are sold on ebay for close to 2000$. But shipping and taxes on top of that is a bit too rich for my taste, and I would prefer to buy this kind of stuff somewhat locally.
 
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i386

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Mar 18, 2016
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Germany
The platform is still too new, some distributors have complete system listed but no mainboards yet ._.
I think we might see mainboards available in q3 2023
 
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ano

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Nov 7, 2022
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I have 10th of march now for shipping from .nl main storage to to here for supermicro stuff, now confirmed

less than $1000 for the supermicro h13ssl , pretty much identical to h12 prices really
 

MBat

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Jan 27, 2021
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I feel your pain. My usual suppliers also told me that they couldn't order yet. I have been looking around for weeks and finally ordered a single-socket Gigabyte SP5-Board, here: GigaByte AMD MB MZ33-AR0 1XLGA6096

They are still listed under Misc ("Diverse") and there are currently no dual socket options. I have done business with the shop before and they are trustworthy. The only dual socket option I found is Gigabyte MZ73-LM1 - GIGABYTE Server Motherboards but I have zero experience with this shop.
 

RolloZ170

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Apr 24, 2016
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i have recently purchased a X13SEI-F at serverparts.pl ( ITCare-official Supermicro Distributor ). you have to pay with bank transfer, but they are serious.
slow delivery because it comes from SM to poland and from there to you.
email to serverparts.pl <info@supermicro.com.pl>
 
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uldise

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Jul 2, 2020
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i have some mixed experience with serverparts.pl too - purchased several times various items - last one was SuperChassis LA26E1C4-R609LP, waited about 7(!) months, but it was a shortage at Supermicro side.
 

alex_stief

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May 31, 2016
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I contacted Gigabyte directly, and they got me in touch with a supplier in Germany.
They usually do B2B, but agreed to make an exception. This is the offer I got:
MZ73-LM0: 1530€+tax, lead time 3 weeks
MZ73-LM1: 1230€+tax, lead time 10 weeks
Big oof considering the MZ72-HB0 went for 800-950€ including tax. Oh well, need to think about it for a while.
 

Spartus

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Mar 28, 2012
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Similar story on buying in north America. MZ73-LM1 is much cheaper but months away for lead time. I would rather it as I don't need PCIe 5, but I ordered some LM0 to get started with.
 

Spartus

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Mar 28, 2012
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P.S. I would love to know any cooler options that might be quieter than Dynatron J12 3U.

Something like Supermicro 4U or Noctua or something that could make for reasonable workstation usage with 280W (or more) processors...
 

Spartus

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Mar 28, 2012
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My personal SP3 systems are mostly watercooled, and I would certainly do the same with SP5, but I also need air cooled workstation-like solutions.
 

jpmomo

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Aug 12, 2018
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I had dynatron build a sp5 and lga4677 water cooler using 2x120 fans and rad. very quiet and effective!

similar to what Patrick wrote about except he tested the 1u stock cooler which was not very quite.

I also have 1u and 2u systems (genoa and spr) plus motherboards although the mb are single socket.

ping me for any details.
 
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alex_stief

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May 31, 2016
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I have to ask a stupid question about these dual-socket boards for Genoa. Say stop when one of my assumptions is wrong:
The socket interconnect is handled by Infinity Fabric.
Infinity fabric uses PCIe lanes.
The MZ73-LM1 is "PCIe 4.0 only", meaning the PCIe slots can't do PCIe 5.0 speeds.
This however does not affect the socket interconnect, which can provide the same bandwidth regardless of motherboard.
I don't need the LM0 if I don't care about PCIe speeds, only about CPU and memory performance.
 

jpmomo

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Aug 12, 2018
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Correct. If you look at the block diagram, you will see 32GTs between the two sockets. That is pci 5.0 speeds.
 
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Spartus

Active Member
Mar 28, 2012
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That is also correct by my understanding.

The pcie 5 signal distance is rather poor and requires repeaters everywhere etc to work on pcie slots, so the difference between lm0 and lm1 is probably this peripheral infrastructure (the repeaters) and there is no impact on the cpu interconnect.