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Latest XPS 15 7590 BIOS update fixes GPU throttling issues, even allows for GPU overclocking with a slight undervolt

Dell's latest BIOS update fixes the GPU throttling issue in the XPS 15 7590. (Source: Dell)
Dell's latest BIOS update fixes the GPU throttling issue in the XPS 15 7590. (Source: Dell)
Dell's recent BIOS update for the XPS 15 7590 fixes the GPU throttling issue that was reported earlier. As observed by a Redditor, the new update apparently does not allow the GTX 1650 to cross the 71 °C while also offering some headroom for overclocking with a minimal undervolt.
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We've reported earlier about a Reddit user, u/Jr712, found a workaround to the GPU throttling issue in the Dell XPS 15 7590 by way of undervolting. Dell released a BIOS update earlier this week to change the GPU throttling speed from 300 MHz to 1,125 MHz. We found this BIOS fix to be a huge relief and this was confirmed by u/Jr712 on Reddit as well. 

The OP notes that Dell's update not just changes the GTX 1650's throttle frequency but prevents the GPU from attaining the 75 °C throttling point in the first place. This was confirmed by resetting the MSI Afterburner settings from the earlier undervolt to stock and stressing the GPU via MSI Kombustor. The OP notes, 

The voltage jumped a little above .800v and frequency about 1,560 Mhz. Occasionally the voltage jumped to .825v and frequency to 1,620 Mhz but it never stayed there for more than a second. That's not surprising and is how it behaved before the update. What did surprise me is after running that test for quite a while the GPU temp never got above 71 °C which means it never got to the throttling point at 75 °C."

The more interesting part is that the BIOS update apparently allows for some overclocking headroom as well. u/Jr712 says that the GTX 1650 could be made to run at 1,620 MHz (60 MHz more than stock) with a 0.05V undervolt (800 mV stock voltage). Running Kombustor for an hour at these settings apparently showed that the GPU temperature did not cross 71 °C, which is impressive. The memory could be overclocked by about 975 MHz as well before running into any stability issues. Pushing the clocks further resulted in "sporadic power limit throttling" and irregular speeds. 

If you are already using the Dell XPS 15 7590, we'd recommend applying the latest BIOS update at the earliest to thwart any GPU performance drops under load. The NVIDIA GTX 1650 is a decent mid-range GPU for 1080p gaming at medium settings and this update could enable you to get the most of it.

XPS 15 7590 MSI Afterburner voltage curve for overclocking after applying the latest BIOS update. (Source: u/Jr712 on Reddit)
XPS 15 7590 MSI Afterburner voltage curve for overclocking after applying the latest BIOS update. (Source: u/Jr712 on Reddit)
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Vaidyanathan Subramaniam
Vaidyanathan Subramaniam - Managing Editor - 1451 articles published on Notebookcheck since 2012
Though a cell and molecular biologist by training, I have been drawn towards computers from a very young age ever since I got my first PC in 1998. My passion for technology grew quite exponentially with the times, and it has been an incredible experience from being a much solicited source for tech advice and troubleshooting among family and friends to joining Notebookcheck in 2017 as a professional tech journalist. Now, I am a Lead Editor at Notebookcheck covering news and reviews encompassing a wide gamut of the technology landscape for Indian and global audiences. When I am not hunting for the next big story or taking complex measurements for reviews, you can find me unwinding to a nice read, listening to some soulful music, or trying out a new game.
contact me via: @Geeky_Vaidy
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2019 08 > Latest XPS 15 7590 BIOS update fixes GPU throttling issues, even allows for GPU overclocking with a slight undervolt
Vaidyanathan Subramaniam, 2019-08- 2 (Update: 2019-08- 2)