Discussion Smallest mATX case w/o drives

juztme

Minimal Tinkerer
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Jun 5, 2020
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Hello all,

I've looked over the spreadsheet here, but I can't seem to find anything like what I'm trying to find.
I currently have two Dell Optiplex 9020s mounted in a in-wall mounted Leviton Media Cabinet- 47605-42N for my management ESXi cluster.

I'd like to replace both with custom builds that include full size mATX motherboards.
I know mATX isn't that popular here, but I'd like to have the additional PCIe slots for 10GB NICs, NVMe adapters, etc.
I'd use all NVMe, so there is no need for storage.

Is anyone aware of any mATX case that is just slighter larger than a standard 9.6" x 9.6" mATX motherboard while being no taller than around 4"?
One dimension could be no longer than 13" with the other being more flexible up to around 15".
Obviously, the PCIe slots would be half-height, but that's completely fine.

I was planning on building something myself out of plexiglass, but I'm very impressed what folks have found for mITX builds on here.

I've attached a photo of the media cabinet; the networking / cabling will be moving to a smaller Leviton cabinet to make additional room.
The machines don't create a lot of heat, as they're just serving up VCSA, AD, DNS, DHCP and storage.

Thanks in advance!

 
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ermac318

King of Cable Management
Mar 10, 2019
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Your issue finding something that size is where would you put the power supply? If your case isn't any larger than the motherboard itself, it would have to be tall enough to fit a PSU above it, which then makes the case thicker than you can accommodate. I think you would need to build something yourself utilizing maybe a FlexATX PSU.

Have you looked for any 1u or 2u rackmount chassis ? That might fit mounted to the wall. Sliger actually makes wall-mount chassis: http://www.sliger.com/products/wallmount/
 

juztme

Minimal Tinkerer
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Jun 5, 2020
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Yes, my assumption would be to use a non-standard power supply, like FlexATX or an external one.
Thank you for the link - but it appears all of the mAXT cases are much deeper than 4" inches.
 

chx

Master of Cramming
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May 18, 2016
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Dimensions: (w x H x D) 12" x 2.5" x 10.375" It would seem it indeed fits micro ATX: https://i.ebayimg.com/images/g/0RgAAOSwi8VZP4fo/s-l1600.jpg and this is quite possibly the smallest case you could find esp with an internal PSU.

Sibling: http://www.minicase.net/product_E-2007.html available at https://www.aliexpress.com/item/32945420179.html this one however seems to only support a shorter type of mini ATX -- maybe the one on eBay too?

Finally:

 
Last edited:

juztme

Minimal Tinkerer
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Jun 5, 2020
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I already have 2x Asrock Rack x470d4u motherboards - I don't believe I've seen a small mATX motherboards that support IPMI or has multiple NVME slots.
That's part of one of the issues I'm trying to resolve - when a hardware issue occurs, I don't want to drag a monitor out just to get to the console / bios.
I'd rather not use vPRO either.
 

juztme

Minimal Tinkerer
Original poster
New User
Jun 5, 2020
4
1

Dimensions: (w x H x D) 12" x 2.5" x 10.375" It would seem it indeed fits micro ATX: https://i.ebayimg.com/images/g/0RgAAOSwi8VZP4fo/s-l1600.jpg and this is quite possibly the smallest case you could find esp with an internal PSU.

Sibling: http://www.minicase.net/product_E-2007.html available at https://www.aliexpress.com/item/32945420179.html this one however seems to only support a shorter type of mini ATX -- maybe the one on eBay too?

Finally:


Nice - two of these suggestions are very close, but they don't have half-height PCIe slots. I was very excited until I noticed that.
 

Bubba

Average Stuffer
Nov 4, 2019
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smallformfactor.net
I already have 2x Asrock Rack x470d4u motherboards - I don't believe I've seen a small mATX motherboards that support IPMI or has multiple NVME slots.
That's part of one of the issues I'm trying to resolve - when a hardware issue occurs, I don't want to drag a monitor out just to get to the console / bios.
I'd rather not use vPRO either.

If you leave the case open (with exterior panels off), it appears your motherboard will fit.
As in these photos.

There is another problem.
The three rear slots on the case, they do not line up with the three pci-e slots on the motherboard.
The bottom pci-e x16 slot might be un-usable.
If you are willing to do some metal work, you could cut the exterior front panel to allow the motherboard to stick out,
and cut a hole for the bottom pci-e x16 slot.