Intel nuc 9 usb challenge

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I'm new to this forum, although I've visited a number of times, so please will all you hugely experienced folk forgive me for asking stupid questions! And perhaps for posting on the wrong thread....

I'm a film maker (what's now known as a "creator") of the old school. Very old in my case, but I started editing on film, then tape, then some real vintage gear like an Avid setup with all of 9Gb SCSI storage.... That gives you an idea of how familiar I have become with the kit.

I now shoot at 4k, so I edit on something reasonably modern, or it was when I bought it just before Covid, an Intel NUC9i7QNX, the NUC Extreme Kit. Internal video storage is 1Tb, which has been fine for fairly small-scale productions, and so far I've simply used external HDDs to store the full-fat ProRes files while editing with proxies (daVinci Resolve if you're interested).

I'm now cutting a much bigger project, and as my HDDs were starting to be unreliable - probably because I'm a cheapskate and bought them from low-end suppliers - I decided to get a better external SSD for both big shoots and edit storage. This is a Crucial X9 4Tb, which is tiny and plenty quick enough for rendering from proxy files back to the originals.

But I have discovered a problem. The rear USB and Thunderbolt ports are only giving USB 2.0 speeds, despite all claims to the contrary. (I hadn't spotted this when using old HDDs, since I didn't expect anything faster for them, but BlackMagic's disk speed tester shows how slow they are.)

I have done absolutely everything I can find out about. I've uninstalled, reinstalled, disabled, enabled, updated everything (although all drivers and BIOS/UEFI were already as new as they can be given the age of the thing), and I've even taken it all apart - which is dead easy, as Intel intended - and reseated everything. I'm even having dreams about Windows Device Manager and what it might tell me.

But no luck at all. The rear ports are firmly stuck at very slow indeed. About 40MB/s read and write. The front ones are fine and proper USB 3.2, but there are only two, and it means cables in the way to some extent.

The NUC has been and still is well up to the job of video editing, and I really don't need or want to build a new machine, so I wonder if any wizards out there can suggest a fix...? It may well be that Intel shipped a bunch of motherboards - sorry, "compute elements" - with faulty back ports, but since Asus took over I'm finding it hard to research the matter.

All advice gratefully received. And thank you!
 
@Boxprod are the ports on the back Blue? First thing, check it's the right ports because as you say the specs imply the Blue ones are USB3.
Second, what drivers are those ports running? I had a similar thing recently where a single USB didn't work on my case and it was due to a driver problem.
 
Yes, they're beautiful blue, and the drivers are claimed by Windows to be up to date.
Specifically, the USB ports etc all have this driver: 10.0.26100.7309, while the USB C policy controller has this one: 1.52.831.832
All have been update as much as Windows will allow!
 
This is a Crucial X9 4Tb,

I cannot be sure but I think this may be your problem. IIRC it's a dreadful drive. I had an earlier model - a Crucial X6 - off one of OCUK's competitors and had to return it because the performance was so bad.
 
I'm afraid that the Crucial X9 can't be the culprit. I've done everything twice, with and without the external SSD connected - rebooted, reinstalled, updated and so on, and I can confirm that the problem exists throughout. In fact, it was there before I even bought the drive!
Sorry!
 
I'm afraid that the Crucial X9 can't be the culprit. I've done everything twice, with and without the external SSD connected - rebooted, reinstalled, updated and so on, and I can confirm that the problem exists throughout. In fact, it was there before I even bought the drive!
Sorry!
Checked BIOS? Sometimes there can be an option to choose if a USB3 port works in USB2 or 3 mode.
 
Sure have. Everything is enabled, and the BIOS is as new as it can be....

A recent wrinkle has been that when I look at Devices Manager and ask it to "show hidden devices", I've had three different snapshots to do with the Thunderbolt controller.

At first it was greyed out, and said that it didn't appear to be connected, then after I had taken the whole thing apart, cleaned it and reassembled it, lo and behold, the Thunderbolt controller was fine and apparently working. But since I don't have a Thunderbolt device, I couldn't test it.

And since the last reboot, it has simply vanished from Device Manager.

Ho hum.
 
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