RTX 5090

Overview

RTX 5090 appears in these tickets as a high-end workstation GPU used in single- and dual-GPU Exxact systems, often alongside Threadripper Pro or Xeon W platforms. In this evidence set it shows up both as a primary customer-installed compute/display GPU and as a comparison card used to isolate other GPU or platform faults.

Known Issues

• GPU Hardware Failure , 4 tickets
  Several tickets involve a 5090 that crashes, fails driver bring-up, or is used as the known-good comparison against another failing GPU. Representative tickets: #35279, #33493, #31099, #37425.
• Software Installation , 1 ticket
  One ticket captures a direct compatibility problem where RELION needed CUDA 11.8 while RTX 5090 required CUDA 12.8 or newer. Representative ticket: #30672.
• Motherboard Hardware Failure , 4 tickets
  In multiple workstation RMAs, the 5090 was present but the actual failure centered on the board or slot path rather than the GPU itself. Representative tickets: #28036, #31241, #32001, #39968.
• Power Supply Failure , 1 ticket
  A severe dual-GPU workload failure with visible spark and shutdown was ultimately traced first to a failed PSU in a system using this class of GPU. Representative ticket: #38737.
• Incorrect Hardware Shipped , 1 ticket
  One case documents confusion where a repaired system came back with a 5090 replacing a prior 4090, and the replacement GPU itself then became the focus of a new RMA. Representative ticket: #33493.

Common Questions

• Can I use the motherboard VGA port instead of the RTX 5090 for desktop output so the GPU stays dedicated to compute?
  No. In this platform evidence, Exxact says the rear VGA port is tied to BMC or management graphics and is intended for BIOS or remote-management use, not normal OS desktop output (#30134).
• Does plugging a monitor into the RTX 5090 meaningfully consume compute resources?
  This exact concern was raised in #30134. Exxact did not support moving the desktop to the motherboard VGA path and directed the customer to use the GPU display outputs for normal graphics use.
• Is there a known CUDA compatibility trap with RTX 5090?
  Yes. Ticket #30672 documents a concrete mismatch: the customer's RELION workflow needed CUDA 11.8, while the RTX 5090 required CUDA 12.8 or newer.
• Can an RTX 5090 help isolate whether a different GPU is bad?
  Yes. In #31099, a replacement 5090 ran successfully in the same environment where one RTX PRO 6000 repeatedly crashed, which strongly supported a defective PRO 6000 rather than a general platform issue.
• Are 5090 problems always GPU failures?
  No. In several RMAs the real fault was a motherboard, PCIe slot path, PSU, or cabling issue in a system that happened to include a 5090 (#28036, #31241, #32001, #38737).
• What power-cable guidance matters for a single-5090 workstation?
  In #31193, Exxact recommended using the supplied C19 to NEMA 6-20P cable and would not validate a C19 to NEMA 5-15P substitution because that configuration had not been tested.

Related Products

• RTX 4090 , directly appears as a confusion or replacement pair in #33493, where a repaired system that had contained 4090 hardware later became tied to a 5090 replacement issue.
• RTX PRO 6000 Blackwell , repeatedly compared against a 5090 in diagnostics. In #31099 the 5090 served as the stable comparison card; in #31180 the customer was troubleshooting a PRO 6000 Gen5 stability issue in a similar workstation class.
• AMD Threadripper Pro workstations , #30134 and #32001 show the 5090 commonly paired with WRX80 or Threadripper Pro platforms, where display-path and board-level questions can be mistaken for GPU problems.
• Dual-GPU workstation builds , #30699 and #38737 show that some 5090 deployments are in higher-power workstation configurations where chassis, PSU, and mechanical stability questions become part of the operational picture.

Referenced by

• Motherboard Hardware Failure — issue affecting this product (×5)
• CPU Hardware Failure — issue affecting this product (×2)
• GPU Hardware Failure — issue affecting this product (×7)
• System Boot Failure — issue affecting this product (×3)
• Shipping Damage — issue affecting this product (×1)
• RMA Workflow — issue affecting this product (×9)
• Memory Hardware Failure — issue affecting this product (×1)
• Power Supply Failure — issue affecting this product (×1)
• Software Installation — issue affecting this product (×1)