CF-31 and using SDXC in the SDHC slot...

Hey, all...I did a search and found some topics having to do with CF-19's and U-1's, but nothing regarding CF-31's. I have a CF-31ACADA1M that is running WinXP 32-bit SP3 and I am wondering if anyone has any advance knowledge of the compatibility of my SDHC slot with the SDXC cards at 64GB and above. According to Panasonic, if the SDXC card I want to try is not newer than Rev 3.0 I should be fine, but I don't really want to make a purchase just to find out and see. Is there an SDXC slot upgrade that I can swap out with this SDHC module in my 31?

Thank you in advance for any input.

-E

 

What does Microsoft say? I remember the SD Upgrade to SDHC.

Or for that matter the SD wiki: Secure Digital - Wikipedia, the free encyclopedia..... Keywords "firmware upgrade and USB 3"

I see Panasonic mentioned in that post.

IOW more software than hardware.

Tell us what you find please,

Jeff

 

Do I really want to listen to Microsquash? Do I think Microsquash knows what they are talking about? What does history tell us?

This is from Sandisk


SD capacities range from 128MB to 2GB

Default Format: FAT16

SD cards will work in all host devices that support SD, SDHC, or SDXC


SDHC capacities range from 4GB to 32GB

Default Format: FAT32

Because SDHC works differently than standard SD cards, this new format is NOT backwards compatible with host devices that only take SD (128MB - 2GB) cards. Most readers and host devices built after 2008 should be SDHC compatible.

To ensure compatibility, look for the SDHC logo on cards and host devices (cameras, camcorders, etc.)



SDXC capacities range from 64GB to 2TB

Default Format: exFAT

Because SDXC uses a different file system called exFAT and it works differently than standard SD cards, this new format is NOT backwards compatible with host devices that only take SD (128MB to 2GB). Most host devices built after 2010 should be SDXC compatible. To ensure compatibility, look for the SDXC logo on cards and host devices (cameras, camcorders, etc.). NOTE: Internal card readers on laptops from 2008 and prior may NOT support SDXC cards. SDXC cards will work in SDHC compatible readers (not SD readers) if the computer OS supports exFAT. For more information on exFat see: Operating Systems that support the exFAT File System

Image
Ultra High Speed, Phase I (UHS-I) bus design for SDHC and SDXC cards was added in SD spec 3.0. This is a design enhancement to increase the performance of SDHC/SDXC cards.

UHS-I specification defines two bus architecture options for up to 50MB/s (UHS-50) and 104MB/s (UHS-104) data transfer rates. These are theoretical maximum limits and actual maximum performance for a specific card is defined on it label or in advertising.

UHS is an enhancement to the original SD interface specifications. Host devices will obtain the UHS maximum speed when both the card and host device support UHS. Otherwise, the host device and card will use the slower SD maximum speed obtainable.

There is no compatibility problem using a UHS card with a non-UHS device.

 

read this....A new driver should do the trick.......
If someone wants to give me a 128g sd card I will test it for you all.

https://www.sdcard.org/consumers/sdxc_capabilities/using_sdxc#cards-for-pcs

Download Update for Windows XP (KB955704) from Official Microsoft Download Center

https://www.sdcard.org/downloads/formatter_3/

 

Windows (including XP SP3 with the proper update from the windowsupdate.microsoft.com) is reading exFat with no problems. You can put SDXC card in the SDHC slot with no problems. It will just run slower than it should be.

 

Thank you to everyone for the informative replies. All of the posts were very helpful and I used that Knowledge Base patch to install the exFAT support so I think I will be good to go now. I will report back when I give it a try. -E

 

Just an insurance - go with the laptop at the store and test the SDXC card before buying it...