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Surface PCs hit with issue throttling CPUs down to 400MHz

Microsoft’s Surface Pro 6 and Surface Book 2 devices are suffering from a CPU throttling issue. According to user reports on Reddit, CPU speeds are being randomly throttled down to 400MHz.

“We are aware of some customers reporting a scenario with their Surface Books where CPU speeds are slowed,” a Microsoft spokesperson said to TechRepublic in a statement. “We are quickly working to address via a firmware update.”

What’s causing the issue isn’t apparent, but TechRepublic reports that it may have something to do with an Intel CPU flag called BD PROCHOT, which can be used to tell the system to throttle down when components become too hot. This flag is used on non-Surface devices as well, so it’s presumed — but not certain — that recent firmware updates have introduced the issue to Surface Pro 6 and Surface Book 2 devices…

Read full story at Windows Central / Article via RSS

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