Thursday, August 31, 2017

AMD Threadripper BIOS Reporting Wrong Temps?

My colleagues over at Tom's Hardware have made an interesting discovery while while testing new waterblocks for AMD's Threadripper platform. If you own a Threadripper owner or have plans to upgrade to one in the near future, you'll definitely want to read this.

Then we found that as power consumption rose, the reported temperature went down! At 180W we saw approximately 67°C for Tctl. But this reading dropped to 51°C at about 325W (or 16 Kelvin less). This makes very little sense, of course, especially since these are also the temperature values output at idle with short, small load peaks.