Page 1 of 1

SD Cards matter

Posted: Thu May 31, 2012 6:22 pm
by venruss83
I'm another new boy on the block with, I'm told, my RasPi on the way.
I've just bought an SD4 Kingston 8GB card in readiness and had some issues trying to access it through two different card readers.Other older cards I have worked OK though they were much lower capacity.I then tried the Kingston in my laptop card slot and it worked OK as it did on my Kodak printer card reader slot. I could access & write to it as it should.
On comparing the contact side of the new Kingston & other two older working cards I noticed a different "pinning" style which may be the reason of non compatability with the admittedly older card readers. I wonder if anyone else has made this observation and would value a reply on the matter. I do hope the SD socket on the RasPi is up to date for the later card contact arrangement!! :o

Re: SD Cards matter

Posted: Thu May 31, 2012 7:27 pm
by jbeale
The SD card connector is a standard and there should only be one type of pin layout, which looks like the image below. Is yours different?

Image

Re: SD Cards matter

Posted: Fri Jun 01, 2012 4:59 am
by devindied
If I read your post correctly, your SD card is not reading properly in your OLD card readers correct?The reason your older card reader is not working is because your new card is not an SD card. Its an SDHC or SDXC or something similar. The older card readers cannot, and will not, read SDHC cards or SDXC cards. I discovered this when my grandparents bought a Canon point and shoot then bought 2 cards. 1 off of cragslist.org that was an SD, or 1GB, then another from bestbuy that is a 4GB SDHC card. The card reader that came with his older PC machine will not read the SDHC cards. The only solution for him was to plug in the camera and use it as a SD card reader. I did tell him about other options like changing out the SD card reader in his 3.5" drive bay to one like this http://www.newegg.com/Product/Product.a ... 6820223103

You may want to do the same. They sell them cheap, like you see here on new egg.com, or you can go to best buy and pay more for the same thing.

Hope this helps you out, and if all else fails, get a new one! Although, a 32GB might cost the same as the Pi itself..... :shock:

Good luck, Devin

Re: SD Cards matter

Posted: Fri Jun 01, 2012 5:08 am
by devindied
Also, if your looking to get a better card, be it faster than Class 4 like the one your have, look into this one: http://www.newegg.com/Product/Product.a ... 12K09N2929

Its a 16GB USH-1 Class card, so its faster than Class 10 with 45Mbps read/write speed. I read a lot of post on here about there Pi booting slow, but without one yet, I cannot test if having a Class 4 differs from a Class 10 @ 10Mbps or a card like this with 45Mbps. I assume the faster, the better, but I'm not sure what the buss speed is on the SD slot of the Pi. Maybe it only accepts a max speed of 10Mbps.... :o

Again, good luck and let us know if this solves anything!
Devin

Re: SD Cards matter

Posted: Fri Jun 01, 2012 7:14 am
by grumpyoldgit
devindied wrote:If I read your post correctly, your SD card is not reading properly in your OLD card readers correct?The reason your older card reader is not working is because your new card is not an SD card. Its an SDHC or SDXC or something similar. The older card readers cannot, and will not, read SDHC cards or SDXC cards. I discovered this when my grandparents bought a Canon point and shoot then bought 2 cards. 1 off of cragslist.org that was an SD, or 1GB, then another from bestbuy that is a 4GB SDHC card. The card reader that came with his older PC machine will not read the SDHC cards. The only solution for him was to plug in the camera and use it as a SD card reader. I did tell him about other options like changing out the SD card reader in his 3.5" drive bay to one like this http://www.newegg.com/Product/Product.a ... 6820223103

You may want to do the same. They sell them cheap, like you see here on new egg.com, or you can go to best buy and pay more for the same thing.

Hope this helps you out, and if all else fails, get a new one! Although, a 32GB might cost the same as the Pi itself..... :shock:

Good luck, Devin
I have a couple of older cameras that while happy with SD cards, would not recognise my new SDHC cards; one a six year old Pentax, the other a three year old Fuji. I found that the web sites for both cameras had firmware upgrades available, and they are now able to use the new cards.

Re: SD Cards matter

Posted: Fri Jun 01, 2012 1:28 pm
by Scotty T
I bought a 32 gig 30mbps San Disk chip from Radio Shack and it's cranking right along.

Re: SD Cards matter

Posted: Fri Jun 08, 2012 8:03 pm
by venruss83
devindied wrote:If I read your post correctly, your SD card is not reading properly in your OLD card readers correct?The reason your older card reader is not working is because your new card is not an SD card. Its an SDHC or SDXC or something similar. The older card readers cannot, and will not, read SDHC cards or SDXC cards. I discovered this when my grandparents bought a Canon point and shoot then bought 2 cards. 1 off of cragslist.org that was an SD, or 1GB, then another from bestbuy that is a 4GB SDHC card. The card reader that came with his older PC machine will not read the SDHC cards. The only solution for him was to plug in the camera and use it as a SD card reader. I did tell him about other options like changing out the SD card reader in his 3.5" drive bay to one like this http://www.newegg.com/Product/Product.a ... 6820223103
You may want to do the same. They sell them cheap, like you see here on new egg.com, or you can go to best buy and pay more for the same thing.

Hope this helps you out, and if all else fails, get a new one! Although, a 32GB might cost the same as the Pi itself..... :shock:

Good luck, Devin
Thanks Devin for your useful reply which hit the issue bang on the head. The Kingston card is in fact an SDHC 8Mb one which clears the matter. As usual there isn't a single standard but that's not suprising Hi!! However will pursue the various suggestions & just hope I get a card ready as my RasPi, I'm informed today, is in the post. Thanks again Devin and to all respondents. Much appreciated. Happy RasPi' ng!!
Col. (venruss83) :?

Re: SD Cards matter

Posted: Sat Jun 09, 2012 8:22 pm
by devindied
Not a problem buddy, glad I could help out. Hope your tasty Pi gets there soon so you can let us know how your first boot goes. Keep us informed.

Devin.