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  1. #1
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    ? Which is the limitation to the SD/microSD card size for Garmin devices ?

    Which is the limitation to the SD/microSD card size for Garmin devices ?



    There are several products that can accept expandable memory cards in SD or microSD format. These cards, for some devices, can be used to store maps,active track-log data, however, all expandable memory devices can utilize the additional memory to store MapSource products.

    There are limitations to the size of SD/microSD card used and to the number of detailed mapping segments that can be recognized by a device.

    these limitations can be:

    * There is no limitation to the size of SD/microSD card used but the device will only recognize 4GB (in some old devices 2gb) of detailed mapping
    * Each expandable memory device will be able to recognize up to 2,025 detailed mapping segments

    If 2,025 detailed mapping segments are loaded to an SD/microSD card but does not reach 4GB worth of data, the unit will not show any more detailed mapping than what is provided by the mapping segments.

    What is a mapping segment?
    Detailed mapping software, such as City Navigator NT or Topo 24, on a DVD format will contain many mapping segments within MapSource or MapInstall. A mapping segment is one selectable area of mapping that can be transferred to the device.
    The segment selected to be transferred to the GPS is highlighted in Mapsource in pink.


    BUT...WHAT ARE THE LIMITS, REALLY??

    Mapset Segment Count:
    As far as I know the mapset limit should be still 2025 map segments on most Garmin devices, regardless of filesize. (MapSource might not care but your device might choke anyway if there are too many segments.)

    But, Oregon and Colorado Montana and 62s can handle mapsets with at least 4000map segments. There appears to be some evidence in the Garmin Colorado and Oregon Wiki from actual use that supports the 4000 number.
    Basemap+preloaded map+user added map=max 4XXX (4096? 4k ?)
    The 60CSx supports a maximum of 2025 map segments by comparison.
    See also
    Code:
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    If you click to the "Maps" tab in MapSource as you're selecting map segments, you can see how many segments you have selected and the filesize (down near the bottom of the tab) before you transfer to the card.

    Limits of FAT16/FAT32:

    MapSource (actually, Windows) will absolutely limit the file size according to the following:

    Volume (Disk) Size: FAT16 = 2GB ..... FAT32 = 32GB
    File Size: FAT16 = 2GB ..... FAT32 = 4GB minus 2 bytes

    So if your 8 GB card is formatted to FAT32 you can put 8GB of files on it but none of them can be larger than 4GB minus 2 bytes each.

    It's a limit of the FAT16 and FAT32 specifications, not MapSource or the devices.



    The nüvi units are compatible with both normal Secure Digital (SD) data cards and Secure Digital High Capacity (SDHC) data cards. (FAT32 formatted)
    16gb SD card is confirmed to work in Garmin 265WT,Nuvi 350,Nuvi ,Zumo 660, Nuvi 1460,Nuvi 760, 62s
    32 GB, Class 10, in the case of 3490-


    -----from Garmin FAQ-----

    Question: What is the largest SD (Secure Digital) card that my nüvi can accept?

    Answer:
    As long as your nüvi has the most recent version of system software your nüvi will be SDHC (Secure Digital High Capacity) compatible. This means that there is no limitation to the size of SD card that your nüvi will accept.

    To ensure that your unit has the most up to date system software please use our WebUpdater program

    and......
    Although any brand of SD or microSD card should work without any problems, Garmin recommends using SanDisk or Kingston brand cards. Most SD and microSD cards work with out any issues however Ultra, High Speed (such as 133x or faster), or SD and microSD cards specifically used for high end or professional electronics might not work.

    can you share your experience ?

    Lolypop000 and other users' experience corrected table June 2013
    :


    Which is the limitation to the SD/microSD card size for Garmin devices ?
    Which is the limitation to the SD/microSD card size for Garmin devices ?
    [Only registered and activated users can see links. ]
    Password for my files: gpspower.net
    I don't upload files on Inactive Users' pm requests.


    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / GPSMAP 62st / Oregon 600

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  3. #2
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    I have the Garmin Oregon 550 and I first used an 8gig microsd chip, then when the Birdseye satellite maps came out I upgraded to a Kingston 16 GB - Class 10 - microSDHC and this works great, I don't think the extra speed helps when the card is in the GPS but if I have a big transfer, I will plug the card into my computers card reader and the transfers are many times faster. Then I filled that one up and instead of having multiple chips to swap out I thought what the hell lets try the
    Kingston Technology 32GB microSDHC (Class 4). It seems to work just fine, I have 17 gb of images on it right now. I think the Oregon 550 and newer GPS's could be the only ones that will work with these higher faster capacity cards.

  4. #3
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    I am using a 16 GB Sandisk mobile ultra SDHC card for the moment
    3,85 GB of images and 4,5 GB of Birdseye images on it.

    The only things i notice is the start up time is longer with a bigger card in it.
    I can't see any delay in refresh the map when i'm hiking, biking or while cardriving.

    There was 1 strange thing i noticed when i load compleet CN europe and complete topo germany 2010 the topo germany map don't show up.
    when i only put a part of topo germany on it whit complete CN europe there is no problem.

    This happend on differnd types on SD(HC) cards.

    grtzzzz

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    On my nuvi 200 that is quite old, I have a 4MB micro SDHC with
    adapter and now i no longer have trouble with space for my Europe map.

  6. #5
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    I, and not others seem to have problems with copying file to SD card.
    Original firmware after update to 3.60
    37xx device memory - 1.8 MB/s
    To SD card (16GB Transcend class 6) - only 35 KB/s!!!

    Bad SD card or something wrong ?

    Can anyone post their performance results and what SD card they have used with what version of Garmin firmware.

  7. #6
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    may be here
    [Only registered and activated users can see links. ]

    i merge the threads
    Which is the limitation to the SD/microSD card size for Garmin devices ?
    [Only registered and activated users can see links. ]
    Password for my files: gpspower.net
    I don't upload files on Inactive Users' pm requests.


    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / GPSMAP 62st / Oregon 600

  8. #7
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    I am useing a 8GB SDHC card in my Oregon 550. On the card i have installed Topo DE 2010 V4 together with CN EU NT 2011_32. The filename on the card must be a 8digit name with suffix .img. Until now i could find any problem.

  9. #8
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    From Garmin FAQ
    published 3-2-2011

    Which is the limitation to the SD/microSD card size for Garmin devices ?
    Which is the limitation to the SD/microSD card size for Garmin devices ?
    [Only registered and activated users can see links. ]
    Password for my files: gpspower.net
    I don't upload files on Inactive Users' pm requests.


    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / GPSMAP 62st / Oregon 600

  10. #9
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    I have used a Dakota 20 in the past, and it accepted 8 gb sandisk SDHC with no problems

  11. #10
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    I have a Nuvi 360, what is the MAX size of SD on it?

 

 
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