hmm, may be interesting combined with a couple of those oculink -> pcie + 6-pin power connector boards with certain GPUs.
$29 Embedded Epyc 3151 ASRock Rack EPYC3151D4I-NL
- Thread starter jbrukardt
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I think this is the system these boards were in: https://www.asrockrack.com/general/productdetail.asp?Model=1U-Open19-t3.small.x86#Specifications
Id try it if i didnt have to cannibalize a card and then reball the package to get a die. Intel is picky about selling the bare packages, and oddly theres none of the chinese recycled/reballed ones on ebay that i can find.
I can definitely flow a chip onto the board... but reballing is a bit outside my skill
Yeah, "Dedicated" vs "Shared", usually there is such a Setting on Supermicro Motherboards at least, although I usually just set it to "Dedicated".
I find it a bit weird the kind of Boards that show up here. Some with LAN but without IPMI (like the ASROCK Rack B450D4U-V1L and ASROCK Rack B565D4-V1L that I bought). Here is the reverse (no LAN, but onboard IPMI).
To be fair most people usually install a 10G/25G/40G/100G NIC anyways, so having IPMI is much more important IMHO.
The Issue here, as I see it, is that this is just mini-ATX with a single PCIe Slot
. I use micro-ATX as a mininum, preferably ATX or EATX, even though also there the PCIe Slots Configuration is often ... not ideal.This board here looks, on the surface and in terms of specifications at least, similar to Gigabyte MJ11-EC0 / Gigabyte MJ11-EC1, though the Gigabyte gives you 2x1gbps LAN, if you needed/wanted that.
It's almost always a good idea to set it to "failover". This is also the default BMC setting.
That means, that the BMC will use the dedicated port first, and then LAN1, if the dedicated port is dead/no connectivity. It still uses the sideband channel on LAN1, so it is invisible to the host OS, and it maintains the same MAC address, whether using the dedicated port or LAN1.
You don't wanna lose connectivity to the BMC, and if it's set to "dedicated" and the dedicated port dies (for whatever reason), it becomes a chicken and egg situation in terms of getting to the BMC to change it to failover.
One PCIe slot is the best you can fit in mini-ITX (the 'I' in 'D4I').
The comparison with MJ11-EC1 is obvious, and this AsRock Rack board looks slightly better: At least there's a regular PCIe slot, and x16 can probably bifurcate to x8x4x4 for a half-height NIC (possibly 10/25G) and a pair of M.2 NVMe. The decisive criteria, however, is that the MJ11-EC1 comes from Germany while this EPYC3151D4I-NL deal is in the US (and the seller appers not to ship to Europe).
But the real competition for this board are the many X10SDV and their Xeon D-1500: Typically more expensive, but with a 10G NIC.
Thanks to @autoturk, who has digged up the full system, we can at least understand why on-board networking was considered superfluous on this board. (It's still a pity, but a quick search for the full -2T board returned an offer at over $300, so the -NL here is a bargain. I have still to hear of a MJ11-EC0 in the wild…)
The comparison with MJ11-EC1 is obvious, and this AsRock Rack board looks slightly better: At least there's a regular PCIe slot, and x16 can probably bifurcate to x8x4x4 for a half-height NIC (possibly 10/25G) and a pair of M.2 NVMe. The decisive criteria, however, is that the MJ11-EC1 comes from Germany while this EPYC3151D4I-NL deal is in the US (and the seller appers not to ship to Europe).
But the real competition for this board are the many X10SDV and their Xeon D-1500: Typically more expensive, but with a 10G NIC.
These are all matters of opportunity, when old custom systems are decommissioned, and their custom-crippled boards pop up for cheap.
Thanks to @autoturk, who has digged up the full system, we can at least understand why on-board networking was considered superfluous on this board. (It's still a pity, but a quick search for the full -2T board returned an offer at over $300, so the -NL here is a bargain. I have still to hear of a MJ11-EC0 in the wild…)
If that was the only piece missing, it might be worth considering. But there are a ton of other missing components that would be needed as well.
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The manual doesn't show any bifurcation options in the UEFI screenshots for the x16 slot. But, there's the Oculink port (x4) and the M.2 slot (x4) for additional PCI-e lanes.
Mine should arrive tomorrow...
Mine should arrive tomorrow...
pretty confident it'll bifurcate since AMD is pretty generous with their bifurcation options on other boards, and this thread seems to suggest so for the sister boards: https://forums.servethehome.com/index.php?threads/epyc3251d4i-2t-pcie-bifurcation.34693/
also I think the original system these were in used the pcie slots via some risers to connect a pair of OCP 2.0 NICs. Or al least that's my guess from what I can tell from the images.
Since you did this- I asked the seller yesterday as well about a $30 offer and they also said $60 was best.
Today though price dropped by $9 to $60.99 - let’s keep pushing that down! Maybe if more of us request the discount they would consider!!
Yeah, because this stuff is barely worth $30 imo... they probably saw the sales from the initial post here and got greedy.
I asked, and yes, the seller is pulling the motherboards from the blades I linked. Said they'd sell the whole server too but haven't given me a price yet.
Besides the novelty though I'm not sure it's worth it. You'll need some Open19 power cable/PSU. You'll be basically get two boards, 4 OCP 2.0 NICs, and some cool but non-standard cabling/connector boards from it, plus exorbitant shipping.
And I have been wondering for ages what happened to my old x10sll-f that made ipmi keyboard not working. Every time i wanted to use it, i had to connect a usb keyboard. Now I know.
I always set it to "Dedicated" to avoid potential conflucts and potentially mitigate security Risks.
If the BMC Firmware is "quircky" (Supermicro X10SLL-F/X10SLM-F boards have IPMI Keyboard not working sometimes, requiring BMC/Unit Reset to get unstock), setting it to failover isn't going to help.
In case of a 100% Remote System you might have a Point, provided that LAN and BMC are connected to 2 different Switches (what if the Switch goes down
).If they by whole server mean the open19 frame they sit in that would be interesting.
I got a army of embedded/mobile chip boards that they would be great cases to reuse for.
Asked them if they got the frames with full sets of sleds available.