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W540 Wifi whitelist

2018-12-20, 23:31 PM

I have a W540 that came with the Intel Wireless-AC 7260.  The card and/or drivers has been unreliable since I got the laptop.  The latest (last?) driver update seems to be the worst.  The card simply stops communicating at all until I disable/enable it in windows, then it will be good for a few minutes to a few hours, depending on the phase of the moon.

I'd like to put another dual-band M.2 2230 (2242?) wifi card in it, and trash the 7260, but of course, there's the infamous BIOS whitelist.

So, what are my options?  What cards are permitted?  Can I request a specific card be added to the whitelist in a BIOS update?  Is this whitelist actually avaiable for viewing anywhere?

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12628 Posts

06-06-2011

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Re: W540 Wifi whitelist

2018-12-21, 8:12 AM
Approved wifi adapters are listed in the file below
https://download.lenovo.com/parts/ThinkPad/w540_fru_bom_20140108.pdf

Try to disable wifi adapter' power saving feature in Device Manager



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07-25-2014

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Re: W540 Wifi whitelist

2018-12-22, 1:23 AM

In other words, a list that hasn't been updated since 2014.  No new wifi cards allowed.

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