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Julien

macrumors G4
Original poster
Jun 30, 2007
11,875
5,454
Atlanta
Have a Mac Pro and use a 30" dell monitor that has a built in USB and multi card reader. Bought a SD card (to use in a photo frame) and OSX doesn't recognize it (it's unlocked). It will see USB drives so I know the reader is working. Is there something I must do or a driver I need to download to read/write to a SD card?
 
You say OSX doesn't recognise it.

I assume then you have tested it with a Windows setup as well?

Obvious I know. :eek: But if it fails with a Windows box as well the SD card reader might be faulty.

For what it's worth, I have the same setup and all works fine for me.
 
Is it an SD card or an SDHC card? The Dell 2407WFP I have hooked up to one of my Mac Pros will only support SD cards and not the SDHC card I just bought. If in doubt check the specs of your monitor.
 
Is it an SD card or an SDHC card? The Dell 2407WFP I have hooked up to one of my Mac Pros will only support SD cards and not the SDHC card I just bought. If in doubt check the specs of your monitor.

It is a SDHC card so I guess that is the problem. Just read on Wikipedia that they are causing lots of consumer confusion.
 
The SD standard goes up to 2GB but there are borderline cards bigger than that. SD cards are normally formatted in FAT16 (hence the 2GB standard limit), but the bigger cards need something like FAT32.

SDHC is different hardware and instead of being rated at maximum speed they are rated at guaranteed speed (thinking about video). They support 4GB and up because FAT32 was adopted (but standard only up to 32GB, most probably because that's the maximum size Windows will let you format).
 
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