Media Card Reader does not work on W541 (is O2Micro, not the RealTek)

Can not read an SD card on my W541. It reads fine on a W530. Reviewed the ReadMe, and tried to find the driver in the WIndows "Device Manager" but no luck.Experimented and found that if I did the following:Brought up Device ManagerUnder "View" menu, chose "Devices by Type" (this should really be in the instructions, although perhaps not necessary).Under "Action" menu, chose "Scan for hardware changes"found that the node labelled "Storage Controller" finally appeared (towards the bottom, just above "Storage Volumes") There was one entry under the node, that of "ByHubTech/O2Micr Integrated MMC/SD controller". The icon preceding this entry had a yellow triangle, so at least the system detected something was wrong. Right clicked on the entry and chose "Properties" and resulting dialog had the following text in the "Device Status" area (on the "General" tab): This device cannot find enough free resources that it can use.
(Code 12)
If you want to use this device, you will need to disable one of the other devices on this system. I have no idea what "resources" are being referred to in the message (a case of "I've got a secret"?), so it is a little hard for me to understand what other devices I might want to free up. Bios is version 2.20The "BayHubTEch/O2Micro Integrated MMC/SD controller" driver version is 2.2.2.1057 (which is the latest as of 6/26/2015).Runnin Win 7 Enterprise + SP1, 32GB RAM.

Hello,
I don't have a W541 myself, but here are a few things to check, in no particular order:
Have you checked with your IT department? Maybe they set a poilicy to disable the card reader.
Is the card reader correctly enabled in the UEFI firmware?
Have you run ThinkVantage System Update and Microsoft Update to confirm all of the various Lenovo and Microsoft updates are installed?
Do you still have the OS image the device originally shipped with? If so, does the card reader work under that?
Regards,
Aryeh Goretsky

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Message was edited by: domaking

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