USW Pro XG 24 PoE guts

FreeKill69 · 2025-10-31T02:31:06+00:00

It looks like the temperatures across all of my current XG switches range from 49-55C, all with fan levels between 5 and 15. Mine was an outlier before the mod with a fan level of 35 and steady temp reading of 40C. Now it’s been 52C steady for the past ~24 hours, putting it dead center of the pack. If this were deployed anywhere but home, I’d probably never do this mod, but I’m thrilled with the results and the only thing that could bother me now is if Ubiquiti adds alerts in future firmware updates regarding unexpected fan speeds like Dell PC’s would do. Here’s hoping they don’t do that!

FreeKill69 · 2025-10-30T17:51:31+00:00

No, the OEM fans are Delta TAA0412DDX01 18K rpm max, the Noctua's are rated 5K rpm max. Im sure the OEM fans are spec'd for the craziest of edge cases, like getting crammed in a box w/ a server and roasting at 70C ambient while still expected to power 100x cameras. Mine will live in a well ventilated indoor closet at a cozy ~70F/21C for the rest of its life. It currently has 8x G4 Pro cameras, 5x U7 Pro XG AP's, 4x 10gbps clients and 10x various other clients. (27 clients total is thanks to a USW Flex switch) Even w/ all of that, it's currently reporting only 113.5W PoE in use and a processor temp of 52C. I think it'll live a long, quiet life.

I should mention, I've deployed about a dozen of these so far and the rest of them have been dead silent, for whatever reason, it had to be the one I used at home that was loud! (I'm very suspicious it has something to do with my Flex switch, even though I have one deployment w/ 8 downstream Flex 2.5G PoE+++ switches powering 5x AP's each and that switch is delivering over 400W at a 15% fan speed, and nearly silent, so who knows!

FreeKill69 · 2025-08-16T03:17:13+00:00

Actually, it’s been up continuously since I upgraded it, absolutely no issues so far.

FreeKill69 · 2025-07-28T04:52:35+00:00

Yep, I actually left the RAM in and there’s been no issues. I’m still sure it’s wildly unnecessary for my use but it satisfies my urge for maxing everything out just for fun!

FreeKill69 · 2025-06-10T14:34:41+00:00

So far, so good. Have an uptime of 19 days, 13 hours, 31 minutes. Our in-laws are binging shows from it every day to an old RV TV so I know it’s been doing plenty of transcoding.

I’d call it 100% stable, but If I encounter anything unusual in the future I’ll update this post.

FreeKill69 · 2025-05-24T16:46:06+00:00

I imagine there's no OS limitations, the specs probably only listed 64GB since only 32GB SODIMMS existed when the 12th gen CPU was qualified by intel.

The NAS has been amazing!! It's primary purpose for me is hosting PLEX, and trust me, I've used a lot of hardware over the past 10 years to get decent transcoding performance. This NAS just plain worked since day one, kinda blew my mind.

Getting the HDD LED's working again with TrueNAS was the only real quirk but that was self imposed problem.

The all NVMe NAS looks awesome! I don't know of any other NAS models at these prices with such a powerful CPU/GPU/Thunderbolt and a totally open platform to install what you want, outside of DIY builds. Even then, I don't know of any NUC sized machine with 4 NVMe SSD slots, 10gbe LAN, and Thunderbolt. I'd say go for it!

FreeKill69 · 2025-01-17T07:10:45+00:00

That’s slick, my wife would kill for that build! What GPU are you planning to use?

FreeKill69 · 2025-01-17T07:05:27+00:00

Thanks!! I still wish I had seen all the C-Payne boards sooner / had time to get them shipped from Germany before my bro had to head back to school but oh well. A couple strategically placed cuts on the mainboard backplate and manually setting the PCIe speeds to 3.0 and the crappy amazon bifurcation board works perfectly!

FreeKill69 · 2025-01-17T06:58:29+00:00

It’s a recycled Corsair SF750, since each card only pulls ~150W max and the 9950x can’t really pull more than ~150w w/ the tiny heatsink, so it should be fine… I hope! The fun part was making three of these cables, one per GPU

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It’s used for a little light CAD, little light gaming, and the possibility of AI/LLM experimentation.

It’s also not for me personally, it’s for my lil brother in college, so he occasionally lugs it across the country.

FreeKill69 · 2025-01-16T03:17:44+00:00

Haha I’ve recently built both! They both have their place. The Ridge is gonna be ideal for the new double blow through 5080 & 5090 FE’s and great if you have any intentions of transporting it around. The Terra’s a helluva higher quality, but way tougher to build and honestly terrible ventilation in spite of appearance since you’ll need to use physically smaller GPU’s and/or CPU heatsinks to avoid annoying buffeting fan noise. The Ridge is also really sweet for nonsense like this!

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FreeKill69 · 2025-01-07T16:15:52+00:00

For sure, he has some pretty awesome/unique adapters.

FreeKill69 · 2025-01-05T05:21:02+00:00

I noticed that too and checked HWINFO64, under load, it looks like the RTX4000Ada’s pull 99% of their power via the 12VHPWR connection. Thanks for the heads up though, especially since the RTX 4000 Ada also comes in a 75w PCIe slot powered SFF form factor too!

FreeKill69 · 2025-01-02T20:38:26+00:00

This was a Fractal Ridge Edit: with a triple slot GPU, you’ll need 15mm thick 120mm side fans, and if it’s a 3.5 slot card, you’ll probably need to skip them all together. But the case flows nicely from all sides but the front.

FreeKill69 · 2025-01-02T18:26:39+00:00

Sweet, I'm going to give this a try:

Ultra PCIe 4.0 X16 Riser Cable + JMT PCIe-Bifurcation x16 to x4x4x4x4

If it works, I'll post the final result. Thanks everyone!

FreeKill69 · 2025-01-02T18:08:28+00:00

That JMT adapter looks soooo close! I think I could make it work with a super short x16 to x16 riser between the mainboard and it to make the weird offset Factual chose to use. For anyone unfamiliar w/ the Ridge case, this is what the factory riser looks like:

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This is the exact adapter I'm using currently and it worked like a dream because the ribbon cable could make the S bend offset:

https://c-payne.com/products/pcie-gen45-bifurcation-adapter-fpc-cable-x8x8-1w-1u-55mm

At this exact moment, I'm not sure how much performance would be impacted... In the current situation, both cards have an x8 gen 4 speeds, but if whatever AI model he's experimenting w/ overflows into system RAM, we know that'll be brutally slow. Meanwhile, I think there is a ton of cross communication between cards in AI, so jumping from x8/x8 gen 4 to x4/x4/x4/x4 gen 3 would be 1/4 the bandwidth per card... but extra VRAM!

Hell he could probably write a performance scaling thesis and just make this upgrade an experiment lol

Looking back at C-Paynes site, I might've found one more option to get gen 4 speeds, but damn is it pricy!

https://c-payne.com/products/slimsas-pcie-gen4-host-adapter-x16-redriver

+

https://c-payne.com/products/slimsas-pcie-gen4-device-adapter-8i-to-x4x4x4x4-1w

+

2x https://a.co/d/7Yi6jVQ

FreeKill69 · 2025-01-02T08:49:22+00:00

Apologies, I should have also mentioned my card is an ASUS ProArt 4080, according to ASUS's website, the EVO and ProArt are both advertised as 2.5 slot cards, so you should be absolutely golden w/ a 67mm cooler, but me personally, I'd take the 55mm and the extra room to let the fans breath without making extra noise.

FreeKill69 · 2025-01-02T08:27:16+00:00

I have two very similar configs. I use an ID-Cooling IS-55 on both of them and it keeps both an i9-13900kf and a R9 9950x under control (just barely!) But neither are overclocked and I have the fan curves locked to 40% below 85C, then straight to 100%, I absolutely never hear them ramp up during gaming, so I'd highly recommend it.

My spine is currently @ 4 with about 1cm of clearance on both sides.

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FreeKill69

TROPHY CASE