n2stitch Posted December 6, 2015 Share Posted December 6, 2015 Can anyone tell me maximum size (and class) microSD card that the Garmin Montana 610 can handle? Quote Link to comment
+kunarion Posted December 6, 2015 Share Posted December 6, 2015 (edited) Can anyone tell me maximum size (and class) microSD card that the Garmin Montana 610 can handle? 64GB seems to be it. What are you planning? Here are a couple of links that may help: https://forums.garmin.com/showthread.php?24147-Montana-600-Micro-SD-Card https://forums.garmin.com/showthread.php?86225-Maximum-microSD-card-size-is Whatever size, it must be formatted in FAT32. 64GB can't be formatted in FAT32, but there are more ideas suggested. And if you're intending to load up the whole thing with birds-eye views or whatever, note the post that says a 32GB card full of stuff takes two minutes to boot up. Edited December 6, 2015 by kunarion Quote Link to comment
n2stitch Posted December 6, 2015 Author Share Posted December 6, 2015 Can anyone tell me maximum size (and class) microSD card that the Garmin Montana 610 can handle? 64GB seems to be it. What are you planning? Here are a couple of links that may help: https://forums.garmin.com/showthread.php?24147-Montana-600-Micro-SD-Card https://forums.garmin.com/showthread.php?86225-Maximum-microSD-card-size-is Whatever size, it must be formatted in FAT32. 64GB can't be formatted in FAT32, but there are more ideas suggested. And if you're intending to load up the whole thing with birds-eye views or whatever, note the post that says a 32GB card full of stuff takes two minutes to boot up. I just want a card that can hold a good amount of topo maps and City Navigator. I have both the Garmin 1:100k topo and some of the 1:24k state topo maps from GPSFileDepot. I have a few track-based maps that I've made from trail data, as well. Thank you for the links. I tried searching and got back 1000 posts. Quote Link to comment
+Walts Hunting Posted December 6, 2015 Share Posted December 6, 2015 My Montana holds the CN NA and 100K TOPO on the device so you shouldnt need much of a card I also have three of the 24k DVDs and have saved them by state keeping the files on my computer to install on the device as needed Quote Link to comment
+Red90 Posted December 7, 2015 Share Posted December 7, 2015 Keep in mind that individual files can't be larger than 4 GB each, so it becomes quite difficult to fill a large card. Quote Link to comment
+kunarion Posted December 7, 2015 Share Posted December 7, 2015 (edited) 64GB can't be formatted in FAT32 Not true ... there are numerous programs that can do it. Please DO NOT cut up my posts to argue with your edit. For the future reference, here's what I actually posted: "64GB seems to be it. What are you planning? Here are a couple of links that may help: https://forums.garmi...0-Micro-SD-Card https://forums.garmi...SD-card-size-is Whatever size, it must be formatted in FAT32. 64GB can't be formatted in FAT32, but there are more ideas suggested. And if you're intending to load up the whole thing with birds-eye views or whatever, note the post that says a 32GB card full of stuff takes two minutes to boot up." I do not craft my posts to cover every possibility. Yet I posted info for additional reading, which specifically refers to work-arounds to format a 64GB card, and the complex issues surrounding it. Edited December 8, 2015 by kunarion Quote Link to comment
+c_dog Posted December 7, 2015 Share Posted December 7, 2015 Back to the OP's question. Keep in mind that the limitation of the largest micro SD that you can, or would want to use is really is a limitation the Montana 6X0's OS itself not FAT32. Mainly, that it can't read a file larger that 4GB, and that the total number of sectors that all of the loaded map files can contain is in the neighborhood of 4000. Knowing this, Generally, with limitation of the total number sectors, it is not usually practical to load more than 8GB of maps at a time (even if the are turned off in the 'Map Select' menu. That being said, I most often have a 64GB XC class 1 in my Montana 650. An no, it doesn't take 2 minutes to boot up. How? Don't put all the maps in the /GPX directory. Only about 5 GB of files or so go there. The rest go in a /Map Cabinet or a directory the Garmin OS never directly looks in. Why? Because of one of the other limitations of the Monatanas. Their hideously slow USB 2.0 interface. Loading a map through the USB port takes forever compared to loading it with a SD card reader, or just moving it around between directories on the card while hooked up to some outside computer in Spanner mode. In the field you can either move the map files around with a laptop, or with an OTG (On The Go) cable hooked to a smartphone. Yes, if you have multiple version of City Nav, Garmin Topos (100k & 24K), all the US States OSM & GPSfiledepot maps on a 32GB or larger card, you can easily fill it. Plus, it's not just maps on the card that you may be putting there. If your GPSr has a camera, more storage space for pictures is useful too. One should be able to format SDXC cards in FAT32 up to about 2TB in size (if, or when that they are made). Don't know if the 128GB available now for about $45 actually work in Montana. This is only because the 64 GBs can be had for under $20. Anything faster than class 4 card in a Montana is probably an overkill. But, with class 10s and U1s being relatively inexpensive, might as well go with the fastest that you may use in something else. Quote Link to comment
+Red90 Posted December 8, 2015 Share Posted December 8, 2015 Back to the OP's question. Keep in mind that the limitation of the largest micro SD that you can, or would want to use is really is a limitation the Montana 6X0's OS itself not FAT32. Mainly, that it can't read a file larger that 4GB, and that the total number of sectors that all of the loaded map files can contain is in the neighborhood of 4000. The 4GB file size limit is a limit of FAT32, not the Montana. Quote Link to comment
n2stitch Posted December 9, 2015 Author Share Posted December 9, 2015 Thank you all for the information. I was able to get a class 10 32 GB Sandisk pretty cheaply, so went ahead and got it. I will certainly look at the tricks for loading the maps faster from my laptop and the card reader. Thanks again! Quote Link to comment
capt caper Posted December 14, 2015 Share Posted December 14, 2015 I have the 64 GB card in my 610 and it works fine. It is formatted OEM to Xfat I believe. But it accepted maps,etc. Quote Link to comment
MtnHermit Posted October 20, 2018 Share Posted October 20, 2018 Got a 64GB microSDXC card formatted ExFat and loaded a bunch of topo maps to the folder Garmin, the Montana 610 won't recognize the maps. Same maps on a 8GB SDHC card formatted Fat32 work fine. Some of the post above suggest ExFat works in the 610, other not. What is the truth here? Thanks Quote Link to comment
+Red90 Posted October 20, 2018 Share Posted October 20, 2018 (edited) Nope. Only FAT32 works. Reformat it to FAT32 and all will be good. Edited October 20, 2018 by Red90 Quote Link to comment
MtnHermit Posted October 20, 2018 Share Posted October 20, 2018 8 hours ago, Red90 said: Nope. Only FAT32 works. Reformat it to FAT32 and all will be good. As advertised, All Good. Thanks Quote Link to comment
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