This build goes all-out for efficiency, with a 32-core Arm64 CPU on a brand new motherboard. HUGE thanks to ASRock Rack, 45Homelab, Ampere, and Noctua for helping me build this system. Parts list (some links are affiliate links): - (Motherboard) ASRock Rack ALTRAD8UD-1L2T Motherboard specs: https://reurl.cc/67jk0V - (Motherboard) ASRock Rack ALTRAD8UD-1L2T on NewEgg: https://reurl.cc/qrnXNp - (Case) 45Homelab HL15 + backplane + PSU: https://store.45homelab.com/configure/hl15 - (PSU) Corsair RM750e: https://amzn.to/3OyDQ79 - (RAM) 4x Samsung 16GB 1Rx4 ECC RDIMM M393A2K40DB3-CWE PC25600: https://amzn.to/49lCtkb - (NVMe) Kioxia XG8 2TB NVMe SSD: https://amzn.to/3Uzag5d - (CPU) Ampere Altra Q32-17: https://amperecomputing.com/briefs/ampere-altra-family-product-brief - (SSDs) 4x Samsung 8TB 870 QVO 2.5" SATA: https://amzn.to/3OylbZk - (HDDs) 6x Seagate EXOS 20TB SATA HDD: https://amzn.to/3OA2CDM - (HBA) Broadcom MegaRAID 9405W-16i: https://amzn.to/3srcZOh - (Power) Comeap PCIe to 8-pin CPU adapter: https://amzn.to/3Sx52o4 - (Cooler) Noctua NH-D9 AMP-4926 4U: https://noctua.at/en/nh-d9-amp-4926-4u - (Case Fans) 6x Coolerguys CG12025M12B2-3Y 120mmx25mm: https://amzn.to/42tTwhD Other things mentioned in the video: - 3D Printed 2.5 to 3.5" SSD to HDD adapter and other HL15 parts: https://www.printables.com/@45Drives_1257568 - M3 x 4mm pan-head screws: https://amzn.to/49wBe1K - Techno Tim's HL15 review: https://www.youtube.com/watch?v=QGSaj5TYUB0 - Raid Owl's HL15 review: https://www.youtube.com/watch?v=Zb_g8VAkvfk - Pigeon vs Internet speed test: https://www.youtube.com/watch?v=4pz2kMxCu8I - 45Homelab Forum: https://forum.45homelab.com/ - ServeTheHome review of ASRock Rack motherboard: https://www.servethehome.com/asrock-rack-altrad8ud-1l2t-review-this-is-the-ampere-arm-motherboard-you-want/ Support me on Patreon: https://www.patreon.com/geerlingguy Sponsor me on GitHub: https://github.com/sponsors/geerlingguy Merch: https://redshirtjeff.com/ 2nd Channel: null Contents: 00:00 - A unique Arm64 HL15 build 01:12 - Parts & Specs 04:13 - Motherboard assembly 08:27 - Thermal paste application 08:44 - A prototype fan 10:20 - 45Homelab's HL15 chassis 11:44 - Will it fit? 14:17 - How hard is it to press power? 16:52 - It's not quiet 17:51 - Hard Drives 19:02 - SSDs and 3D printed adapters 19:40 - First boot! (And a RAM issue) 23:14 - Linux install 25:27 - Idle power draw (higher than I hoped) 26:10 - Rack it up! 29:17 - Patch cable's too short (oops)