Related
Guys, I know this has been asked before - I just cant seem to find a conclusive answer. But here goes;
Will a SDHC 4GB SD card work on my Blueangel with Helmi's BA WM2k5 AKU3.5 (v.1.4 )? Has anyone got one working?
Hi J_Hutt
I have a 4gb SD card in my BA and it works just fine.
http://en.wikipedia.org/wiki/Secure_Digital_card
Untill reading your question and the wikipedia page above, I wasn't aware that my 4gb card was an SDHC card. My card does not show an SDHC logo, but from that wikipedia article it seems all cards >2gb are SDHC (1024byte blocks as opposed to 512).
We are of course at the mercy of wikipedia here though, its information is not always perfect.
Thanks for that, tho I gather the SD"HC" cards are different to the standard SD and not all devices are compatible (same form factor, just something about transfer rate / capacity / Fat32 file system etc)
Is anyone using a SDHC card in their WM% Blueangel?
As I can understand, there are some 4GB SD - non SDHC cards. Google for TS4GSD150. Or read this: http://www.hjreggel.net/cardspeed/index.html#special-sd.html - section "SD and SDHC Card Size Overlap"
Yeah I am aware of that (non SDHC 4GB cards) Situation is that I bought a 4GB SD (not SDHC) card online and it was DOA (not just in my BA, but in readers etc)
Supplier has just emailed me offering to replace it, but do I want a SDHC at no extra cost blah blah....and I am thinking, why not if it will work.
So, again...has anyone used a SDHC in their BA?
You can get it, and if it doesn't work on BA you will have a good excuse to buy a new smartphone...
thingonaspring said:
Hi J_Hutt
I have a 4gb SD card in my BA and it works just fine.
http://en.wikipedia.org/wiki/Secure_Digital_card
Untill reading your question and the wikipedia page above, I wasn't aware that my 4gb card was an SDHC card. My card does not show an SDHC logo, but from that wikipedia article it seems all cards >2gb are SDHC (1024byte blocks as opposed to 512).
We are of course at the mercy of wikipedia here though, its information is not always perfect.
Click to expand...
Click to collapse
Hi thingonaspring,
which card you have (brand, model..)? I would want to buy a 4gb's card for my Q9090. What I can buy?
Thx
Bb
4Gb SDHC card doesn't work
Not that long ago, I bought a 4Gb SDHC card and not knowing about SDHC (thinking it was another marketing term) and even though it was working fine in the cheap card reader on my desk, it did not do anything in my BA.
Went back to the supplier and switched it for a regular SD card and that one has been working fine since.
SDHC cards
SDHC cards are 3d generation SD card technology,
They have some abilities,
1 to 32 gb capacity
Improved read and write speed,
Data stability,
Content encryption etc..
This technology requires hardware support which device will use, there is no software support. ( Except USB 2.0 cardreader used computers. )
Don't buy SDHC cards, there is already normal 4 gb SD card from SanDiskand kingston, and future 8 gb will coming.
Thx.
EQUANCY said:
They have some abilities,
1 to 32 gb capacity
Click to expand...
Click to collapse
That's a bit shortsighted IMHO, 32 gb isn't all that much these days.
i found this when i was searching. If anyone found a regular 8 GB SD card please post it here, i'll be tempted to buy it for sure because it seems like thats the best way to go. Overall if you do get the BA to accept this type of card it wont be compatible in other older devices thats currenly out now. So i think buying a SDHC Card isn't a good investment right now.
But please don't let me change anyone's mind, I'm just looking for a good investment right now.
http://www.modaco.com/index.php?showtopic=251468&pid=802703&st=0&#entry802703
SD Card info ... from the Windows Mobile Team ...
Everything you wanted to know about SD Cards, but were afraid to ask:
http://blogs.msdn.com/windowsmobile/archive/2007/01/12/everything-you-want-to-know-about-sd.aspx
The SD Standard used by the PPC phones at present does not support larger than 2Gb by definition. However, some 4Gb SD Cards will work in the BA, but this depends solely on the block-size which is being used by the cards.
Your mileage may vary ... try before you buy, and if you do find a 4Gb or an 8Gb one which works (and gets 8Gb of storage - not overlapped!!!) then post the brand/make/model here, as I'm sure many people would love to take their music collection along - a.la.ipod style ...
I have a knockoff SanDisk 4Gb from ebay that works in my BlueAngel (wm2003SE)
I also have the Transcend 4gb 150X card that worked fine. The card itself has problems, which is why I swapped to the knockoff.
beware that some usb readers are not able to deal with 4gb SD cards (notably the Lexar 12 in 1)
If your reader is IDing the card as 900 and change MBs your reader is struggling try another.
I have had no problems with the HTC unit and the cards. The transcend was messing up the same way in the device and every reader I threw at it...
Good luck
Gil
EQUANCY said:
SDHC cards are 3d generation SD card technology,
They have some abilities,
1 to 32 gb capacity
Improved read and write speed,
Data stability,
Content encryption etc..
This technology requires hardware support which device will use, there is no software support. ( Except USB 2.0 cardreader used computers. )
Don't buy SDHC cards, there is already normal 4 gb SD card from SanDiskand kingston, and future 8 gb will coming.
Thx.
Click to expand...
Click to collapse
Incorrect, I just posted about this. SDHC format can handle much more storage than 32 GB, however there are physical theoretical limits to flash memory, just like there are those for CPU's. My post
Regards,
Jason
What is incorrect?
JKR said:
Incorrect, I just posted about this. SDHC format can handle much more storage than 32 GB, however there are physical theoretical limits to flash memory, just like there are those for CPU's. My post
Regards,
Jason
Click to expand...
Click to collapse
There is no incorrect comment.
SDHC is an 3 generation NandFlash technology.
Now, The limit is 32 gb at this time,
Mean of limit is Secure, stable and usable.
May be some firms reached this limit (however you know more than 32 gb I don't now) but not this time.
There is only 8 gb cards on sale and 16 and 32's are coming in 2007-8.
Why i write 1-32 gb?
Because, there is no 512 mb SDHC but well 1 gb SDHC, you may find it.
What is SDHC, why not compitable with standart SD cards.
#1) Disk write and Read functions and commands are changed, New SDHC cards can write upto 6-10 mbps to disk and 50-80 mbps Read from disk. ( I sad disk them, they have no unique name ). This differents come from his hardware structure -->> I/O Busses, Voltage levels, frequenties and other reasons.
#2) They have a chip, he manage reading and writing operations, they have no processor, may you say DCU ( Data Controlling unit, that is mine ID ).
#3) They developed with NandFlash 2.0 technology, This is third of Nano Sized Memory blocks technology. ( You may find somethings about it ).
At the and.
SDHC cards are not compitable with SD 1.0 and 1.1 platforms, not like bluetooth 1.0 and 2.0, there is no old format support. ( No one has been sad yet )
if you want to buy SDHC, be sure the compatibility.
Blueangel's SD 1.1 slots have 1.2/12 mbps speeds ( Write/Read )
"This is not maximum speed of SD 1.1 they reached 2.1/25 mbps on USB 2.0 cardreaders."
The numbers may be some wrong, but be sure they are nearly values.
And lastone.
CPU's are not simple units. And they have so much parts.
You may find somethinks like of this comments in the Internet.
Just search it.
Come on ppl buy buy buy
http://search.ebay.com/search/search.dll?from=R40&satitle=8+gb+sd+card
Just leave one flash drive and the 8GB combo for me. When your done just let us hear the reviews
EQUANCY said:
There is no incorrect comment...Now, The limit is 32 gb at this time
Click to expand...
Click to collapse
Well perhaps "incorrect" was a bit harsh. It all depends on where you get your info. here lists the ultimate capacity under the new memory addressing scheme as 2 TB. Where as here the maximum size is listed as 32 GB. Now I did mention that there are physical limitations of flash memory, and may not be able to reach the 2 TB limit, but under the SDHC standard, 2 TB is supported.
EQUANCY said:
SDHC cards are not compitable with SD 1.0 and 1.1 platforms, not like bluetooth 1.0 and 2.0, there is no old format support. ( No one has been sad yet )...
Click to expand...
Click to collapse
This is what I had read also. I had done some little investigation into this a few months back, so I'm no stranger to searching the web, and had done so back then and once again. With that said, the second link above actually had some new info. It lists SDHC readers as being backwards compatible. Where as what I had read sometime back, was that there were legal restrictions imposed by the SD group to prevent this. Perhaps this has changed now. Well I suppose I may be defending a bad premise, because to be honest, when I had originally searched about SDHC, I didn't come across the 32 GB limit. And I suppose I could have been more specific about what I was referring to in your post.
Regards,
Jason
Good but...
This is mine last post about SDHC.
32 is Maximum reached SDHC capacity at this time, 2 TB is only theorical limit.
When someone make 2 TB SDHC then you can say the upto 2 TB capacity.
May be 2 TB SDHC's will come in future, then we can talk about 2 tb.
This is an example:
Intel goes to 45 nm technology, and that give a way to 8 or more core processor and upto 3 ghz per core speed without Netburst technoloy.
"Can you say there is already 8 core processor with 24 ghz total speed?"
You sad:
"It lists SDHC readers as being backwards compatible"
1-I sad about cards, not readers.
2-I sad SD 1.0 and 1.1 slots are can not use SDHC cards, I didn't sad SDHC Cardreaders can not read SD cards.
I write somethings about SDHC, because someone can buy them, this tech useless for our PDA's, i want help people. Because
I'v got so much help here,
May we can use SDHC's in nexttimes with external adapters or converters as SD.
May be...
EQUANCY said:
...You sad:
"It lists SDHC readers as being backwards compatible"
1-I sad about cards, not readers.
2-I sad SD 1.0 and 1.1 slots are can not use SDHC cards, I didn't sad SDHC Cardreaders can not read SD cards...
Click to expand...
Click to collapse
I wasn't correcting you when I said this, I was correcting my statement that there was no compatibility. I had read at one point that there was no backwards compatibility (for legal reasons), but it looks like they changed that. but I will say that technically there aren't any 32 GB SDHC cards either. It is just a matter of what the question is asking, what is the largest capacity in development vs. what is the largest capacity possible.
Regards,
Jason
Hey guys i just bought the 8GB SDHC card and the flash drive reader/writer that comes with it.
It will take about two weeks in shipping for me so i'll keep you guys inform of the type and where i bought it from.
It's simple: I'm looking for an SDHC-support update/hack/driver/other for Blue Angel (Qtek 9090).
Can anybody help me?
Yes, it's rather easy: sell BA, buy sth that supports SDHC out of the box.
More complicated solution: wait until more devices will support SDHC, then sell BA and buy it.
So far we can forget about update of drivers to support SDHC and, what is more probable, device itself is not capable of suppoorting SDHC.
Thanks for you respons even though I don't like the sound of it.
Nothing at all I can do to get my Blue Angel på support SDHC? Nothing?
For sure something can be done
1. Write driver that supports SDHC, if chip inside is capable of reading SDHC cards. If not:
2. Unsolder reader and solder a new one in it's place, that supports SDHC for sure. Then write driver.
In both cases it will be easier and cheaper to just buy new deivce.
BTW: yo you know, that BA reads easily 4GB SD cards, that are not SDHC (a bit out of standard, but still possible)? Maybe it would be enough for you?
Ok. I'll sell the 8 GB SDHC-card and buy another (not HC) SD-card.
Thanks...
From all the technical datasheet I've gathered so far, it's all in the drivers.
Not even the device reader's firmware.
Right now I'm just waiting for a WM5 device that fully supports SDHC so we can lift the driver out of it, but that chance of that is slim as they'll all most liekly be WM6. Anyway, there is a possibility and I'm not giving up that easily.
So when is it possible for a sdhc-driver for Blue Angel to come out? Soon or should I sell my 8 GB SDHC and buy a 4 GB SD?
If you want to have more flash on your BA, you should buy no-SDHC card. Even it there will be any device on WM5 that reads SDHC, there is little chance it will work correctly in WM5 on BA.
And chances of having new device on WM5 are also lower and lower, as WM6 is the mainstream today.
8gb SD
My 8GB SD card (not SDHC) does not work in my BA.
Anyone know if a driver has been released?
Forget about driver. So far.
Where have you bought 8GB SD that is not HC? Any links?
What reader it is compatible with this (rather odd) thing?
8GB SD
fleabay are selling 8gb sd cards.
The readers are sdhc and sd compatible.
prices are around £45 incl reader + del.
what are the chances of a 8gb sd driver?
Does the Athena support SDHC?
AbuGWM5: I don't think there can be SD card that is both SD and SDHC compatible. It's like having a partition formatted both Fat32 and EXT2 at the same time.
hardingt0110: This is BlueAngel forum, isn't it?
The only non HC 8 gig SD cards are MMC. These can be made to work with driver support. It's all in the data transfer. Here's all you ever wanted to know about SD cards http://pdaphonehome.com/forums/samsung-i730-i830-i830w/88442-8-gb-card-hunting-tips.html
AbuGWM5 said:
fleabay are selling 8gb sd cards.
The readers are sdhc and sd compatible.
prices are around £45 incl reader + del.
what are the chances of a 8gb sd driver?
Click to expand...
Click to collapse
I just looked on ebay (US and UK) and all the 8 gig SD cards I saw were SDHC. Have a link to one of these cards that are not SDHC?
8gb SD
Here's the link to the 8gb SD card:
http://cgi.ebay.co.uk/150X-8GB-OEM-...yZ122613QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Sorry for the mis-understanding: i meant 8gb SD card with a reader that is compatible with SDHC.
MMC just stands for multi-media card. So any memory card falls into that category.
PS buy at your own risk from the above seller he is very slow with delivery approx 4 weeks from USA and his cards may not be x150.
If you really want this 8gb sd card pm me if you'd like to purchase from me.
"8GB Secure Digital™ SD SDHC"
That card will not work in the BA, it's an SDHC card.
AbuGWM5 said:
MMC just stands for multi-media card. So any memory card falls into that category.
Click to expand...
Click to collapse
MMC is registered name of MultiMediaCard standard, that is separate from SD (but usually compatible), MemoryStick, CompactFlash and other standards.
http://en.wikipedia.org/wiki/MultiMediaCard
mmc sd
jakubd said:
MMC is registered name of MultiMediaCard standard, that is separate from SD (but usually compatible), MemoryStick, CompactFlash and other standards.
http://en.wikipedia.org/wiki/MultiMediaCard
Click to expand...
Click to collapse
Thanks jakubd
Thinking of buying this 16GB SDHC memory card.
http://www.meritline.com/kingston-16gb-sdhc20-class4-sd-card.html
http://www.buy.com/retail/product.a...m=206812522&Type=PE&Category=Comp&dcaid=15890
But I dont wanna throw away money..so..
is the TYTNII a SD (ver. 1.0, 1.1) device? (if so then it will not recognize SDHC cards (>4GB))?
Does anyone know if this works with TYTNII (pratically, not theoretically)?
Has anyone used this or the 12GB one?
Thanks
some info on it:
Compatibility with SDHC 16GB: 16GB SDHC are designed for devices that are compatible with the SDHC 2.0 specifications. The SDHC logo on the packaging is to ensure compatibility. Please check with your device manufacturer for their current/future supported SDHC devices.
SDHC works differently then standard SD cards, this new format is not backwards compatible with legacy SD format host devices.
Kingston Technology's Secure Digital High Capacity (SDHC) memory cards are fully compliant with the new SD Association specification version 2.00. They are a new performance class of SD memory cards designed to meet the storage demands of high-quality digital still and video cameras and other high-resolution image recording devices.
-Remember that standard host devices must call out support for SDHC in order to be compatible with SDHC Cards (>4GB). Look for the logo!
-SD (ver. 1.0, 1.1) devices will not recognize SDHC cards (>4GB).
Features/benefits:
Compliant: with the SD Card Association specification version 2.00
Secure: built-in write-protect switch prevents accidental data loss
Compatible: with SDHC host devices; not compatible with standard SD-enabled devices/readers
File Format: FAT 32
Simple: as easy as plug-and-play
Specifications:
Capacities: 16GB
Dimensions: 0.94" x 1.25" x 0.08" (24mm x 32mm x 2.1mm)
Speed Class Rating:
--Class 2: 2MB/sec. guaranteed minimum data transfer rate
--Class 4: 4MB/sec. guaranteed minimum data transfer rate
--Class 6: 6MB/sec. guaranteed minimum data transfer rate
Operating Temperature: -13°F to 185°F(-25°C to 85°C)
Storage Temperature: -40°F to 185°F(-40°C to 85°C)
Voltage: 3.3V
The problem is how to fit it in your Kaiser ?
Cause this is not a micro SDHC card
While I don't know about the SD version on the Kaiser, I can tell you it reads 8GB SDHC cards. So if your 1.0, 1.1 versions only recognize under 4GB then the Kaiser is obviously using a later version.
Not sure on what you are going to pay for that size card... you can get an 8GB for under $50 which might be a smarter move until the others come down in price.
dang thats the price of my tilt
btw our phone support up to 32gb
ChefChaudart said:
The problem is how to fit it in your Kaiser ?
Cause this is not a micro SDHC card
Click to expand...
Click to collapse
LOL good point, i didn't even follow the link to see that. I thought that SDHC was only micro cards...but then again I don't own any other devices that use these so i never researched them.
So, to the OP the size should work...but make sure you get a micro!
the card u posted in ur link will NOT work becase it doesnt suppot SDHC...u just simply cant put it inside ur phone...
It does Fit into the phone, what you see in the link is the exterior part of it. The smaller card is in the inside (fits underneath the one shown).
bluemamba said:
It does Fit into the phone, what you see in the link is the exterior part of it. The smaller card is in the inside (fits underneath the one shown).
Click to expand...
Click to collapse
Actually, the links provided are SD cards, not Micro SD. The picture is not a Micro SD to SD converter, it's just an SD card. Micro SD to SD converters do not show the size of the card on them
So in conclusion, no, the product(s) in the links you provided will not fit in the kaiser, and therefore will not work. However here in the UK, we can expect to see 16GB Micro SDHC on the 31st May. See here
Audio said:
Actually, the links provided are SD cards, not Micro SD. The picture is not a Micro SD to SD converter, it's just an SD card. Micro SD to SD converters do not show the size of the card on them
So in conclusion, no, the product(s) in the links you provided will not fit in the kaiser, and therefore will not work. However here in the UK, we can expect to see 16GB Micro SDHC on the 31st May. See here
Click to expand...
Click to collapse
Sorry My bad then..
Anyway now that thats sorrted out, my question still stands
Memory limit
One of HTC tech support guys basically told me that if the microSDHC card says SDHC that the Kaiser (or the Tilt he was referring to seeing as I was talking to him about my phone) will support it...and I believe he mentioned up to at least 128gb memory capacity or something. One other poster in this thread mentioned 32gb...
Now for reality, at the time of my purchase of the Tilt Nov 2008, Sandisk was the first to make 8gb microSDHC (okay others announced it too), and the time from their announcement of 8gb being put on their website at $139.99 in Nov 2007 or so.....to the availability on amazon in roughly January or Feb 2008 at 139.99....to the current amazon price of roughly in the $50 range by March/April 2008.....to the realization that very few other memory manufacturers have released 8gb microSDHC cards.......makes one think that by the time any amazing company makes anything substantially bigger than 8gb, AND releases it to market at a price I'm willing to pay for.......By that time...I and probably many of us, will have bought a newer phone with proper drivers...that the limit of memory size of microSDHC for the kaiser will be a memory.
In others words, 8gb microSDHC is the largest you will find today (most likely), and the phone will handle much more than that in its product lifetime. Buy with confidence that your kaiser in April 2008 can handle any microSDHC product available in April 2008.
Hope this helped.
thanks nicely put
come on dude you put up a link for an sdhc memory card you need a MICRO SDHC MEMORY CARD. Also I thought all th Tytn II could use the high capicity cards...are you sure you don't have a TYtn-one.
kkkkevinkim said:
come on dude you put up a link for an sdhc memory card you need a MICRO SDHC MEMORY CARD. Also I thought all th Tytn II could use the high capicity cards...are you sure you don't have a TYtn-one.
Click to expand...
Click to collapse
This is true, by this thread is 6 months old also . Have a look at the date!
I'm buying the 8 GB MicroSDHC tomorrow. My 2 GB is already completely full!!
The SanDisk 16GB microSDHC works just fine in the Tytn II -- I've been using one for about a week now. I don't notice any speed difference between it and my old class 4 8GB card.
3waygeek said:
The SanDisk 16GB microSDHC works just fine in the Tytn II -- I've been using one for about a week now. I don't notice any speed difference between it and my old class 4 8GB card.
Click to expand...
Click to collapse
That sounds awesome!!! I haven't seen the 16gb ones yet. How much do they go for?
I live near a Microcenter
so the 8G Microcenter version went on sale for 34 Bucks..thats right! Now the SANDISK 8G is a little bit more expensive but they are the same class SDs. I have the Microcenter version running right now in my Tilt with only 2Gs left...I'll probably try and get the SANDISK 16G but I might even wait to see if Microcenter comes out with their own 16G which generally is cheaper than Sandisks.
MACkjam said:
That sounds awesome!!! I haven't seen the 16gb ones yet. How much do they go for?
Click to expand...
Click to collapse
I've seen them in the range of US $75-100. I paid $98 for mine -- they were the only US supplier I could find that had them in stock.
I'm going to buy a 16GB microsd card from sandisk. I've been finding on Amazon and found these two products:
Sandisk 16GB Mobile Ultra MicroSD Card : £36.00
SanDisk 16GB microSDHC Memory Card : £15.99
I've also noticed they're all class 2 (can't find a class 4 or class 6 sandisk). So what is the difference between them? I'm using the card for Windows Phone 7, so which one should I buy?
http://en.wikipedia.org/wiki/SD_Memory_Card#SDHC_cards_with_greater_than_32.C2.A0GB_capacity
as I understand it the only advantage of SDHC is an increased card storage. And im not sure if an SDHC card works in the HD2.
uxu said:
http://en.wikipedia.org/wiki/SD_Memory_Card#SDHC_cards_with_greater_than_32.C2.A0GB_capacity
as I understand it the only advantage of SDHC is an increased card storage. And im not sure if an SDHC card works in the HD2.
Click to expand...
Click to collapse
Both of them should be SDHC (>2GB). I'm asking about the Ultra thing.
Zell Dinch said:
Both of them should be SDHC (>2GB). I'm asking about the Ultra thing.
Click to expand...
Click to collapse
Sorry, got it wrong
They're the same thing. One has an adapter however
Ultra means it has higher transfer speeds.
There's also Ultra and Extreme in the regular SDs.
Ultra=15 mb/s
Extreme=30 mb/s
So it's all about speed.
@apallohadas: they have different model number, one is SDSDQY-016G-E11M and one is SDSDQ-016G-FFP. And I suspect that just a card reader will make that difference in price.
@joooe: but they're both class 2?
I've tried several different class cards in my HD2, and regardless of advertised 'class' r/w speeds only changed noticeably if I took it out of my phone and used a card reader or adapter like shown in the "ultra" listing you have.
apallohadas said:
I've tried several different class cards in my HD2, and regardless of advertised 'class' r/w speeds only changed noticeably if I took it out of my phone and used a card reader or adapter like shown in the "ultra" listing you have.
Click to expand...
Click to collapse
Hello apallohadas
can you confirm or any one without any doubt that there is no difference in R/W speed between class 2 or class 4 or class 6 inside HD2 with Windows 6.5 or Android
thanks
secoseco said:
Hello apallohadas
can you confirm or any one without any doubt that there is no difference in R/W speed between class 2 or class 4 or class 6 inside HD2 with Windows 6.5 or Android
thanks
Click to expand...
Click to collapse
I don't have Winmo installed on my phone anymore, so I can't rerun that test and I didn't keep the numbers last time that I did it.
But if you'd like to try testing cards yourself, I used a program called H2test and a card adapter. My Class 2 Sandisk 32GB card gave numbers comparable to a class 6 Transcend 16GB.
Inside of the HD2 however, while on Android the tests take too long (setting read/write file sizes of 1GB+.) I've read in several places that the hardware limits performance as though they were all class 2 cards.
There are reviews where a class 4 card is superior to a class 6 card.
Sandisk cards are just great.
In the sandisk website there is no info about the class of both cards. Don't believe they have the same class.
apallohadas said:
I I've read in several places that the hardware limits performance as though they were all class 2 cards.
Click to expand...
Click to collapse
thank you apallohadas for replay
I think so, hardware limitation to Class 2 with HD2 although I read in several places that there is more performance with Class 6 or 10 card in Android especially SD Android
I have Sandisk 16G class 2 and want to upgrade to 32G and I don't want to wast my money in useless class 6 or 10 with my EU HD2,
any one use Sandisk class2 then upgrade to class4 or 6 with EU HD2 and get faster performance in read and write inside HD2 not as disk drive ??
thanks
I was reading this forum post which claimed that a class 4 card is actually faster than a class 10 card for Cyanogenmod on the microsd card. Is that true? I currently have the 64GB san disk class 10 card (the red/grey one) as my card. It does tend to lag a bit if i'm swiping from one home screen to another. Would a class 4 card give me smoother performance?
http://forums.anandtech.com/showpost.php?p=34988392&postcount=30
If it's a Sandisk class 10, it's probably fine.
What the problem is that Sandisk's class 4 cards often perform better than the class 10 cards from other manufactures like Patriot. I have a class 4 Sandisk and a class 10 Patriot and the Sandisk is superior at 4k performance. But the class 10 Sandisk is probably fine (assuming it's a real Sandisk and not a counterfeit).
Ravynmagi said:
If it's a Sandisk class 10, it's probably fine.
What the problem is that Sandisk's class 4 cards often perform better than the class 10 cards from other manufactures like Patriot. I have a class 4 Sandisk and a class 10 Patriot and the Sandisk is superior at 4k performance. But the class 10 Sandisk is probably fine (assuming it's a real Sandisk and not a counterfeit).
Click to expand...
Click to collapse
Thanks, oh you're Ravynmagi from that same thread eh? Hahaha
Class 10 cards are best for long r/w for large files or a video camera. Most of what the tablet or phones do are shorter r/w and a class 6 or 4 will do fine or even be superior. This is particularly true for cards that are used for part of the operating system. This info was gleaned from experience with Android, NativeSD roms. If you search nativesd + hd2 there much info.
Many of the class 10 labeled cards are mislabeled anyway. A name brand like Sandisk will be more quality tested and properly labeled.
Hello guys, this is my first post here. Instead of starting a new thread, I thought it'll be appropriate to post in a thread about sd cards. I'm planning to buy microsd cards for my new Nook HD+, which is on the way. Does UHS-1 micreosd cards work with Nook HD+? I want to dual boot with cynagen mod on sd card. Which class'll be the best for running android from the sdcard? Also I want to make a back up of my Nook HD+ stock version, what size card is enough for that?
The card that I have in mind is a Strontium 16GB UHS-1 MicroSDHC Card. In its product description it says "Compatible with SDHC and SDXC host devices; not compatible with standard SD-enabled devices/readers" and "Compliant with the new UHS-I specification for ultra-high speed interfaces for SD specifications. Can only be used in UHS-I mode in UHS-I compatible devices." (I can't post link since it's my first post)
I got confused after reading that highest class won't give optimal performance. I hope some one here will help me in this. Thank you.
mashac said:
Hello guys, this is my first post here. Instead of starting a new thread, I thought it'll be appropriate to post in a thread about sd cards. I'm planning to buy microsd cards for my new Nook HD+, which is on the way. Does UHS-1 micreosd cards work with Nook HD+? I want to dual boot with cynagen mod on sd card. Which class'll be the best for running android from the sdcard? Also I want to make a back up of my Nook HD+ stock version, what size card is enough for that?
The card that I have in mind is a Strontium 16GB UHS-1 MicroSDHC Card. In its product description it says "Compatible with SDHC and SDXC host devices; not compatible with standard SD-enabled devices/readers" and "Compliant with the new UHS-I specification for ultra-high speed interfaces for SD specifications. Can only be used in UHS-I mode in UHS-I compatible devices." (I can't post link since it's my first post)
I got confused after reading that highest class won't give optimal performance. I hope some one here will help me in this. Thank you.
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SanDisk class 4 are the best to use for everything on the HD/HD+. The device does not work reliably with faster cards.
You need about 1.5GB to do a stock backup, so a 2GB is enough.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
SanDisk class 4 are the best to use for everything on the HD/HD+. The device does not work reliably with faster cards.
You need about 1.5GB to do a stock backup, so a 2GB is enough.
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Thanks leapinlar for that quick reply. So, a 16 or 32GB class 4 sandisk card for the dual boot and another 2GB card for the stock backup is all I need. Thanks again.
The "class' rating is only a measure of large sequential write performance, as in using it for an HD video camera. The class rating has no bearing at all on random access speeds or small reads and writes. Many sandisk class 4's have faster small random read/write performance than many class 10 cards, but its worthwhile to look at benchmarks for a card you're looking at or a list of top cards for tablet/phone usage that keys on small random read/write performance for optimal performance.
In fact, the sd card market is loaded with class 10 cards that stink at pretty much every other measure than large sequential writes.
SD cards 16G and larger are only made as class 10 devices. Properly formatting the SD card will improve it's performance.
Onageric said:
SD cards 16G and larger are only made as class 10 devices. Properly formatting the SD card will improve it's performance.
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No they are not. Here is a 32GB class 4 SanDisk available http://www.mymemory.co.uk/Micro-SDHC/SanDisk/SanDisk-32GB-Micro-SD-(SDHC)-Card---Class-4
artesea said:
No they are not. Here is a 32GB class 4 SanDisk available http://www.mymemory.co.uk/Micro-SDHC/SanDisk/SanDisk-32GB-Micro-SD-(SDHC)-Card---Class-4
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To be more specific - SD cards 16G and greater are manufactured to meet class 10 standards. To get the most money from their products the production line is optimized to make the fastest and most expensive product. Products that miss the QC marks for "A" grade (class 10) will/should easily pass "B" grade (class 4) specifications. The class 10 data bus can run at faster speeds than a class 4. It can also
r u n s l o w e r, meeting fully the class 4 specifications. Often manufacturers will mark their perfectly good class 10 products as class 4 to fulfill market demands. Think making money.
Onageric said:
Often manufacturers will mark their perfectly good class 10 products as class 4 to fulfill market demands. Think making money.
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It's seems to be true. Bought "Exployd 4 class micro SD" and it's running at 10 class speed at read/write (always over 12Mb).
See this thread http://forum.xda-developers.com/showthread.php?t=1005633 for extensive discussions of comparative performance of different vendor/model SD-cards. For the purpose of running ROMs, look out for cards with high throughput in randomized read/write access, not in sequential read/write access.
FWIW, I am using exclusively Sandisk class 4, having had terrible results (lots of Wait & Force-Close) with class 10 and 6 cards from a mix of vendors.