(I realise this would be totally unsupported and likely painful). Just wondering if anyone has considered this?

Well, someone bought all available stacking cables at our local Microcenter, just as I was ready to checkout my cart! I guess, that’s the sign that I shouldn’t spend another $4K+ for a second Spark…

It is a bit expensive for a bit of a play. However, I found the following cable works for me (for one port, haven’t tested with both ports active): 0.5m (2ft) NVIDIA/Mellanox MCP1650-V00AE30 Compatible 200G QSFP56 Ethernet Passive Direct Attach Copper Twinax Cable Got it from fs dot com. I …

What’s interesting, local Microcenter had 6 cables in stock, at least since Monday. I put one to cart, along with a Spark, then got distracted for a few minutes and when I came back to finish the checkout process, all six cables were gone, and the page now says that the item is not carried in this s…

Try to check Dell or other OEM partners options. Since they send me 4 cable instead one for two device, I guess they have plenty of them :-)

Which cable did they send? Brand/model? I looked at the Dell website, and you can configure their version of the Spark with the cable, but I couldn’t find any information about the cable itself, or find anything similar outside of the bundle.

@eugr Naddod, FS and Complete Connect have stock. I ordered a second cable arriving sometime next week. [image] Suggested cable to link two Sparks? DGX Spark / GB10 Since the cables are out of stock at Microcenter and Amazon in addition to Naddod I found ava…

@eugr did you have to do anything unusual to get the Fedora installation media to boot? I’m having trouble with each different boot media I’m trying. Fedora and EL9 hang and shut down the machine after a short boot crawl. Ubuntu hangs and shuts down with no text. Windows 11 and Debian make their way…

A few things to check: Make sure you are booting aarch64 image. Turn off Secure Boot in BIOS. Update your Spark to the latest firmware via DGX OS first. BTW, the keyboard issue is similar to what I had when I just got mine, even with stock DGX OS setup. I had to do headless setup via network and i…

No luck… I was certain of the first two previously, and tried the third to no avail. Still getting weird hangs or unresponsive inputs on any normal aarch64 boot media I try. I tried the DGX OS recovery USB and it worked great, so it isn’t a universal issue with my boot media or USB-C hub.

Oh, one more thing you want to try is to boot Fedora in “basic graphics mode”. The server version boots in it by default, I believe, so I didn’t have to do that, but to make Fedora KDE live usb to boot, I had to choose basic graphics mode in GRUB menu.

Has anyone tried an alternative Linux distro?

Accelerated Computing DGX Spark / GB10 User Forum DGX Spark / GB10

maiia November 11, 2025, 10:34pm 47

@eugr Naddod, FS and Complete Connect have stock.

I ordered a second cable arriving sometime next week.

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Has anyone tried an alternative Linux distro?

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