Thelio Major (thelio-major-r3)

• External Overview
• Internal Overview
• Parts & Repairs

The System76 Thelio Major is a desktop with the following specifications:

• Processor options
  • Supports AMD Ryzen 7000 series (Zen 4) CPUs
    • Ryzen 5 7600X
    • Ryzen 7 7700X
    • Ryzen 9 7900X
    • Ryzen 9 7950X
• Motherboard
  • Gigabyte X670E Aorus Extreme running System76 Firmware (non-open)
  • AMD X670 chipset
• Daughterboard
  • Thelio Io board running open-source firmware
• Graphics options
  • Up to two dedicated GPUs
    • Primary GPU slot:
      • PCIe 5.0 x16
        • Runs at x8 bandwidth if either of the bottom two M.2 slots are populated
      • Up to 4-slot height
    • Secondary GPU slot:
      • PCIe 4.0 x4
        • Fits physical x16 cards, runs at x4 bandwidth
      • Up to 2-slot height
  • GPU size:
    • Internal clearance: 396.50mm
    • Recommended maximum length: 386.50mm
  • Tested with the following GPUs:
    • NVIDIA GeForce GT 1030
      • 1x HDMI 2.0b, 1x DisplayPort 1.4, 1x DVI-D (single-link)
    • AMD Radeon RX 6500 XT
      • 1x HDMI 2.1, 1x DisplayPort 1.4a
    • AMD Radeon RX 6600
      • 1x HDMI 2.1, 3x DisplayPort 1.4a
    • AMD Radeon RX 6700 XT
    • NVIDIA GeForce RTX 3060
      • 1x HDMI 2.1, 3x DisplayPort 1.4a
    • NVIDIA GeForce RTX 3060 Ti
      • 1x HDMI 2.1, 3x DisplayPort 1.4a
    • NVIDIA GeForce RTX 3070
      • 1x HDMI 2.1, 3x DisplayPort 1.4a
    • NVIDIA GeForce RTX 3070 Ti
      • 1x HDMI 2.1, 3x DisplayPort 1.4a
    • NVIDIA GeForce RTX 4070 Ti
      • 1x HDMI 2.1a, 3x DisplayPort 1.4a
    • NVIDIA GeForce RTX 4080
      • 1x HDMI 2.1a, 3x DisplayPort 1.4a
    • NVIDIA GeForce RTX 4090
      • 1x HDMI 2.1a, 3x DisplayPort 1.4a
    • NVIDIA RTX A2000
      • 4x Mini DisplayPort 1.4
    • NVIDIA RTX A4000
      • 4x DisplayPort 1.4
    • NVIDIA RTX A6000
      • 4x DisplayPort 1.4a
      • Requires 750W+ PSU
• Expansion
  • 1x PCIe 5.0 x16 (primary GPU slot)
  • 1x PCIe 4.0 x4 (secondary GPU slot)
    • Fits physical x16 cards, runs at x4 bandwidth
  • 1x PCIe 3.0 x2
    • Fits physical x16 cards, runs at x2 bandwidth
• Memory
  • Up to 128GB (4x32GB) dual-channel DDR5 DIMMs @ 4800 MHz
  • Tested with the following RAM modules (may ship with other tested modules):
    • Crucial CT8G48C40U5 (8GB/stick)
    • Crucial CT16G48C40U5 (16GB/stick)
    • Crucial CT32G48C40U5 (32GB/stick)
    • Kingston Fury KF552C40BB-32 (32GB/stick)
    • Kingston Fury KF556C40BB-32 (32GB/stick)
• Networking
  • 1x 10-Gigabit Ethernet (RMarvel lAQtion AQC113C)
  • Wi-Fi 6E + Bluetooth 5.2 (Intel AX210)
• Power
  • C13 power cord
  • 750W minimum PSU
    • Some GPU configurations require 1000W PSU
  • Tested with the following PSU models (may ship with other tested models):
    • EVGA SuperNOVA 750W G5 (80+ Gold)
    • EVGA SuperNOVA 1000W G2 (80+ Gold)
    • EVGA SuperNOVA 1000W G3 (80+ Gold)
    • EVGA SuperNOVA 1000W G5 (80+ Gold)
    • EVGA SuperNOVA 1300W G+ (80+ Gold)
• Sound
  • 3.5mm line out, line in, microphone jacks
  • Up to 5.1-channel audio output
  • Realtek ALC1220-VB audio chipset
  • HDMI, DisplayPort audio (depending on GPU)
• Storage
  • 4x M.2 (PCIe NVMe Gen 5) SSDs
    • M.2 slots 2 and 3 (the bottom two slots) share bandwidth with the primary GPU slot
  • 4x 2.5" SATA III
• USB
  • 1x USB 3.2 Gen 2x2 Type-C
    • Does not support Thunderbolt or DisplayPort over USB-C.
  • 1x USB 3.2 Gen 2 Type-C
    • Does not support Thunderbolt or DisplayPort over USB-C.
  • 6x USB 3.2 Gen 2 Type-A
  • 4x USB 2.0 Type-A
• Dimensions
  • 46.2cm × 26.2cm × 40.8cm