Precision 5520 has the same chassis as XPS. Dell's laptops used to have coil whine issue and quality control seems to be bad at least during the past few years.

Precision 5520 has the same chassis as XPS. Dell's laptops used to have coil whine issue and quality control seems to be bad at least during the past few years. This is a strong competitor of the XPS https://www.notebookcheck.net/Gigabyte-Aero-15-7700HQ-GTX-1060-FHD-Laptop-Review.215364.0.html https://www.notebookcheck.net/Gigabyte-Aero-15-7700HQ-GTX-10... and this is a competitor on the workstation area http://store.hp.com/wcsstore/hpusstore/pdf/HP_ZBook_Studio_G4_MWS.pdf http://store.hp.com/wcsstore/hpusstore/pdf/HP_ZBook_Studio_G...