Question REALTEK RTS5186 card reader does not work

Matthew Wai

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Jan 9, 2015
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I have a card reader with a 9-pin USB header, which fits a USB connector on my GA-H81M-DS2 motherboard, which uses H81 chipset. The reader was removed from and had been worked fine with Lenovo Edge 71, which used H61 chipset . However, it does not work with GA-H81M-DS2, whose boot menu shows no SD card, which will be shown if it is in a reader with a USB-A connector.

The problematic reader uses REALTEK RTS5186. Is it possible for H81 chipset not to support RTS5186?

The 9-pin USB connector on GA-H81M-DS2 works with my USB HDD and flash drives, so the problem does not lie in the connector.
 
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