Corsair has announced a recall of a lot of SF Series power supply units for small form factor PCs after experiencing "higher than normal RMA rates." The company states that the affected models may experience problems when exposed to both high temperatures and high humidity, and "regrettably, the PSUs may fail."

All power components in a PC draw power from the PSU, either directly (most graphics cards, motherboards, HDDs, 2.5" SSDs) or indirectly via the motherboard (CPU, M.2 SSDs). However, according to Corsair, a defective PSU does not pose a threat to the hardware to which it is connected.

"We would like to inform our customers that there is absolutely no risk of damage to components or hardware connected to the SF Series PSUs. This fault only occurs on the primary side of the PSU and is completely isolated from the DC side of the PSU transformer that supplies power to the PC hardware.

Corsair's SF Series models are compact units divided into two high-efficiency categories-80 Plus Gold models (600W and 450W) and 80 Plus Platinum models (750W, 450W, 600W). All of these are fully modular units.

The issue likely affects all wattages, as Corsair did not exclude any models in its announcement. However, according to the company, the recall is limited to units manufactured between October 2019 and March 2020 with lot codes 194448xx through 201148xx.

To see if yours is affected, look at the label on the side of the PSU. The lot code is represented by the first 8 digits under the barcode, hopefully not disassembling the entire PC. ......

In the unlikely event of a recall, submit a support ticket; Corsair will cover return shipping costs and "will make every effort to provide an advance replacement" for affected models "whenever possible."

TechPowerUp