This is possible, but would only help Windows users and would likely result in reductions in battery endurance. The latest (as of 02 January 2014) claim (among Lenovo users experiencing the same problem on their new laptops) is that the solution is to be found in registry edits that interfere with (or stop) power-state switching by the Haswell CPU. Until then, it is likely that ordering a new system or requesting a replacement motherboard prior to availability of the fix will leave you with coil whine. See the links in the Update at the top of this page for further detail regarding availability of the fix. Thus far, Dell has acknowledged the issue and indicated that they are developing a replacement motherboard to fix the issue, which affected customers will be able to obtain at no cost as long as they have an active warranty contract. Part of the variation in customer reaction could be explained by the fact that the volume of the coil whine varies from unit to unit. The "coil whine" sound is the single most unifying complaint about the XPS 15 and has been cause sufficient for at least a handful of users to return their devices and buy a different product altogether, though others have been perfectly fine with it. Several users have noted that the sound changes in pitch and/or volume based on CPU/GPU load, but does not necessarily mean that those components are generating the noise themselves. It is most commonly labeled " coil whine," though it is unclear what exactly is responsible for the sound. Many users have noticed an unexpected sound emanating from their laptops, often loudest on the left side of the keyboard or by the USB ports along the left side of the laptop.
Here is also twitter thread about this issue. UPDATE: According to this page of a Dell Communities thread on this issue, Dell has officially acknowledged the issue and (as of this writing) is working on a fix.
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