Thelio Major (thelio-major-r5-n3)

• External Overview
• Internal Overview
• Parts & Repairs

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

• Processor options
  • Supports AMD Threadripper 7000 series (Zen 4) CPUs
    • Threadripper 7980X
    • Threadripper 7970X
    • Threadripper 7960X
• Motherboard
  • Gigabyte TRX50 Aero D running System76 Firmware (non-open)
  • AMD TRX50 Chipset
• Daughterboard
  • Thelio Io board running open-source firmware
    • Version 2.3
• Graphics options
  • Configured with up to one dedicated GPU
    • User-expandable to 2 GPUs
    • Primary GPU slot:
      • PCIe 5.0 x16
      • 3-slot height
        • 4+-slot cards fit if PCIe slot 2 is empty
    • Secondary GPU slot:
      • PCIe 5.0 x16
      • 2-slot height
        • 3-slot cards fit if PCIe slot 3 is empty
  • GPU size:
    • Internal clearance: 358.00mm
    • Recommended maximum length: 348.00mm
  • Tested with the following GPUs:
    • NVIDIA RTX 6000 Ada
      • 4x DisplayPort 1.4a
    • NVIDIA RTX 5000 Ada
      • 4x DisplayPort 1.4a
    • NVIDIA RTX 4500 Ada
      • 4x DisplayPort 1.4a
    • NVIDIA RTX 4000 Ada
      • 4x DisplayPort 1.4a
    • NVIDIA GeForce RTX 4090
      • 3x DisplayPort 1.4a
      • 1x HDMI 2.1a
    • NVIDIA GeForce RTX 4080 Super
      • 3x DisplayPort 1.4a
      • 1x HDMI 2.1a
    • NVIDIA GeForce RTX 4070 Ti Super
      • 3x DisplayPort 1.4a
      • 1x HDMI 2.1a
    • NVIDIA RTX A400
      • 4x Mini DisplayPort 1.4a
    • AMD Radeon Pro W7900
      • 3x DisplayPort 2.1
      • 1x Mini DisplayPort 2.1
    • AMD Radeon RX 7600
      • 3x DisplayPort 2.1
      • 1x HDMI 2.1a
• Expansion
  • 2x PCIe 5.0 x16 (primary & secondary GPU slots)
  • 1x PCIe 4.0 x16
• Memory
  • Up to 512GB (4x128GB) dual-channel DDR5 DIMMs @ 5600 MHz
  • Tested with the following RAM modules (may ship with other tested modules):
    • Hynix HMCT04AGERA202N (128GB/stick)
    • Hynix HMCG94AGBRA181N (64GB/stick)
    • Hynix HMCG84AGBRA190N (32GB/stick)
    • Kingston KF556R28RBE2K4 (32GB/stick)
• Networking
  • 1x 10-Gigabit Ethernet (Marvell AQtion AQC113C)
  • 1x 2.5-Gigabit Ethernet (Realtek RTL8125)
  • Wi-Fi 6E + Bluetooth 5.2 (Intel AX211)
• Power
  • C13 power cord
  • 1000W PSU
  • 80+ Gold Efficiency
  • Tested with the following PSU models (may ship with other tested models):
    • XPG Core Reactor II 1000W
    • Be Quiet! Pure Power 12M 1000W
• Sound
  • Back:
    • 3.5mm mic in
    • 3.5mm line out
    • Realtek ALC4080 audio chipset
  • Top:
    • 3.5mm mic in
    • 3.5mm line out
    • Realtek ALC897 audio chipset
  • Up to 2-channel audio output
  • HDMI/DisplayPort audio (depending on GPU)
• Storage
  • 3x M.2 (PCIe NVMe Gen 5) SSDs
  • 1x M.2 (PCIe NVMe Gen 4) SSD
  • 4x 2.5" SATA III
• USB
  • Back ports:
    • 2x Thunderbolt 4
      • Top port supports DisplayPort over USB-C when using DisplayPort passthrough from dedicated GPU
      • Intel JHL8540 controller
    • 4x USB 3.2 Gen 2 (Type-A)
    • 4x USB 3.2 Gen 1 (Type-A)
  • Top ports:
    • 1x USB 3.2 Gen 1 (Type-C)
    • 1x USB 3.2 Gen 1 (Type-A)
• Dimensions
  • 46.2cm × 26.2cm × 40.8cm