Proven 8-pin PCIe plugs aren’t immune to melting — Thermal Grizzly WireView adapter burns out on Radeon RX 7900 XTX

If you believe that the 8-pin PCIe power connector is entirely immune to the problems that have plagued the newer 16-pin connector, think again. A recent incident suggests that even the humble 8-pin is not entirely immune to failure. According to a Radeon RX 7900 XTX owner on Reddit, the 8-pin connectors on a Thermal Grizzly WireView monitoring device suffered overheating damage while connected to the graphics card.

The user said that they experienced frequent freezes and black screens before discovering the damage. The affected connectors were the 8-pin connectors on the GPU side of the monitoring device, with visible signs of burning and melted plastic. The user also confirmed that the connectors were fully inserted, although the exact cause of the failure is still unknown.

WireView is essentially an adapter that sits between a graphics card and the power cables, allowing users to monitor various values like power consumption, voltages, current in amperes, minimum and maximum power consumption, and more. Rather than connecting the PSU cables directly to the GPU, the power passes through the monitoring device, thus adding another set of connectors and electrical contacts to the power delivery path. A poor electrical connection, increased contact resistance, a damaged connector, or an issue with the adapter itself could have caused the overheating damage.

Thermal Grizzly previously pointed to improper seating, backplate interference, or incorrectly aligned or soldered contacts as possible causes of connector damage, although the company is yet to identify the cause of this particular incident. The company has reportedly contacted the affected user and asked them to get in touch with its support team so the company can investigate the damaged WireView adapter. The investigation could potentially help determine whether the failure originated from the adapter, the connectors, the GPU, or a combination of factors.

While we are on the subject of 8-pin power connectors, just days ago we saw a heavily modified RTX 5090 successfully running on traditional 8-pin connectors. The modders replaced the card’s original 16-pin connectors with three 8-pin connectors soldered directly to the PCB, using heavy-gauge cables and modified sense pins. The card reportedly pulled as much as 900W and reached 3,400 MHz, demonstrating how capable 8-pin connectors can be when properly implemented. However, this was an extreme hardware modification, not a stock configuration.