Thelio Mega (thelio-mega-r4-n3)

• External Overview
• Internal Overview
• Parts & Repairs

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

• CPU options
  • Supports AMD Ryzen Threadripper PRO 7000 series (Zen 4) processors
    • 7995WX
    • 7985WX
    • 7975WX
    • 7965WX
    • 7955WX
• Motherboard
  • Gigabyte TRX50 AI TOP running System76 Firmware (non-open)
  • AMD TRX50 chipset
• Daughterboard
  • Thelio Io board running open-source firmware
    • Revision 2.3
• GPU options
  • Up to four GPUs (4x PCIe 5.0 x16)
    • Ships with up to three GPUs
    • Fourth GPU subject to space & power constraints
  • GPU size:
    • Internal clearance: 369.10mm
    • Recommended maximum length: 359.10mm
  • Tested with the following GPUs:
    • NVIDIA RTX Pro 6000
      • 4x DisplayPort 2.1b
    • NVIDIA A800
      • Compute only (no video ports)
      • Ships with NVIDIA A400 for display
        • 4x Mini DisplayPort 1.4a
    • NVIDIA RTX 6000 ADA
      • 4x DisplayPort 1.4
      • Supports Quadro Sync II in multi-GPU configurations
    • 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 5090
      • 3x DisplayPort 2.1b
      • 1x HDMI 2.1b
    • NVIDIA GeForce RTX 5080
      • 3x DisplayPort 2.1b
      • 1x HDMI 2.1b
    • NVIDIA A400
      • 4x Mini DisplayPort 1.4a
• Memory
  • Up to 512GB (8x64GB) quad-channel ECC Unbuffered DDR5 DIMMs @ 5600 MHz
  • Tested with the following RAM modules (may ship with other tested modules):
    • Micron MTC40F2046S1RC56BR (64GB/stick)
    • Kingston KF556R28RBE2K4 (32GB/stick)
• Networking
  • 2x 10-Gigabit Ethernet (Marvell AQtion AQC113C 10GbE LAN chip)
  • Wi-Fi 6E + Bluetooth 5.3 (Intel AX210)
• Power
  • C19 power cord
  • 1650W PSU
  • 80+ Gold Efficiency
  • Tested with the following PSU models (may ship with other tested models):
    • Thermaltake Toughpower GF3 1650W
• Sound
  • Top:
    • Realtek ALC897 chipset
      • 3.5mm mic in
      • 3.5mm line out
  • Back:
    • Realtek ALC4080 chipset
      • 3.5mm mic in
      • 3.5mm line out
    • HDMI and/or DisplayPort audio out (depending on GPU)
• Storage
  • 4x M.2 (PCIe Gen 5) SSDs
  • 4x 2.5" SATA III
• USB
  • Top:
    • 1x USB 3.2 Gen 1 (Type-C)
    • 1x USB 3.2 Gen 1 (Type-A)
  • Back:
    • 2x USB4 (Type-C)
    • 6x USB 3.2 Gen 2 (Type-A)
• Dimensions
  • 47.8cm x 26.3cm x 43.8cm