[MinnowBoard] Minnowboard Max, Fedora 20, and SDHC

[Michael]

Hello,

I just received my MinnowBoard Max.  I am really liking the board overall.

I am having an issue with the micro SD card though.  Here is my current 
configuration

MinnowBoard Max
Micro SD (sdhc, class 10, Sandisk and Samsung EVO)
Fedora 20

All of the filesystems were put on the SDHC.

The install seems to go fine with no errors.  I followed the 
instructions on the wiki to add the additional modules to as micro sd 
support into the ram disk.

Below are the erros I am seeing.  I am typing this by hand, so please 
ignore typos.

mmblk0: error -84 transferring data, sector 2056, nr 8, cmd response 
0x900, card status 0xb00
mmcblk0: retrying using single block read

The error just then repeats over and over with different sector and nr 
values.  The machine is now fairly unresponsive and isn't usable.

I thought maybe I had purchased a bad card.  Initially I was using the 
Samsung EVO.  But I bought a Sandisk card and I am having the same issue 
with it as well.

Any suggestions?  has anyone else seen this issue?

Michael