XPS 7590 throttled to 0.78GHz

Hi,

I have a very frustrating issue where often when my XPS 7590 is plugged in, it gets throttled down to 0.78Ghz. The only way to remove the throttle is to unplug the PC, at which point it immediately clocks up.

This started as an occasional issue and is now almost constant. The problem has been getting worse over recent weeks. It has made what was once a good laptop into a nearly useless and very expensive paperweight.

This is not a power plan settings issue.

Additionally, the power adapter plug is now very flaky and often doesn't charge the battery. You have to move it around, rotate it, bend the cable, etc. until a tenuous connection is formed. At which point, shortly after the laptop will get throttled down to 0.78GHz! Like the throttling issue, this has been getting much worse over recent weeks.

Some additional notes:

• The 0.78GHz throttle only happens when the laptop is plugged in and actually connected to the charger, i.e. the battery is charging
• The connection from the charger is very flaky and has to be moved around a lot
• Both problems have gotten much worse recently
• Sometimes after the charger has been plugged in, the tip is very hot.
• After the throttling is removed (by unplugging the PC), the performance is still sluggish with YouTube videos tripping frequently (not an internet issue)
• A factory reset did not fix this issue

I am very disappointed and frustrated with this issue as I expected much higher quality from such an expensive laptop. Any pointers on solving this would be much appreciated.