i am new to XDA's and am looking at buying an SD card. i know that the ultra II sd cards are like 40x quicker but to you get any advantage on an xda II. or are xda II's not capable of the higher speed
no it's not xda2 is pretty slow when it comes to sd speed
slower then ipaq all the way back to 3700 who again are not fast enougth to take advantage of ultra sd cards
try the program pocket mecahic
it let you bench your sd card and compare it with different brands of sdcards in different pocketpc types
their database dident have any pocketpc's which were as slow to read and write their sandisk 128MB flash card as my xda2
basicly it's because xda2 use the internal sd interface in xscale cpu
the xda1 is faster because it use an external sd interface chip
Related
I want a SD card for my PDA2k. Can't anyone finally answer the question of the largest card size that is supported by this device? Also what are the read write speed for a standard SanDisk card compared to the 10/9 MB/s speeds of the Ultra II cards? Also can our devices actually support the faster read/write or is it unnecessary overkill? Anyone have any direct speed comparisons for any tasks comparing std. vs. Ultra II?
Found some results, still looking for advice
I finally found some test results for read/write speed for Sandisk regular SD cards. 6/4 MB/s see here: http://www.tcmagazine.info/articles.php?action=show&id=4&perpage=1&pagenum=2 . So with the Sandisk Extreme at 10/9 and the Extreme III at 20/20 there is a large difference. Now again the questions are: Can our devices support the new 2GB cards and in real world applications, such as file storage, mp3 and wmv storage and playback and GPS map useage, are these higher speeds really noticeable?
Hi
I have a kingmax platinum 1G card (60x) and a bog standard sandisk 1G card. Dont notice any difference on my XDA IIs.
On a PC in a USBII reader, the kingmax is about 10% quicker on writes with no difference on reads.
The claims made by manufacturers about the speeds of their devices are mostly [email protected] Additionally, the XDA IIs is much, much slower at reading/writing from the cards than the PC is.
Nigel
I see these 66x superfast SD memory cards advertised. Will using one speed up my blue angel?
Can programs use this SD card for operating memory or can they only use the intenal memory?
Does having <5mb avaialable slow down your device?
Fast Sd Cards
Fast Sd cards are only useful for SLR Pro cameras. The rest of the devices are using normal card reader slots. i.e. even if you were to use a fast SD card in the sd card slot,you will only get the normal speed.
by rest of the devices, i mean, all pocket pcs, ppc phones, phones and such devices...... :x
moali77 is correct. it won't make much of a difference in your pda. however, if you use a card reader, or happen to have a digicam that can utilize the speed, you will be better off.
example: i played atlantis redux recently 100mb+ required to be put on your sd card. instead of copying it through activesync, i put it in my usb2.0 card reader, copied it over, in far less time than it would've taken if i did it the other way.
but if you don't plan for much of that, then don't bother paying the premium for a fast card =)
Well I bought a Kingston Elite Pro Secure Digital 1GB, think It's 7.7/8.2MB Write/read
It made my TomTom go way faster planning routes and generally give me better performance from other apps.
I dont know the Top speed for the BA SD Slot, but you should look at the speeds of the card you are planning to buy
bosjo said:
Well I bought a Kingston Elite Pro Secure Digital 1GB, think It's 7.7/8.2MB Write/read
It made my TomTom go way faster planning routes and generally give me better performance from other apps.
Click to expand...
Click to collapse
Have others experienced similar variations with different SDs?
I recently responded to Wamatt's other posting about SD cards in the BA accessories forum. In it, I've described my experiences with the SD card listed in my sig and BA speed tests I've done with it.
See http://forum.xda-developers.com/viewtopic.php?t=26903 for additional information.
Hi guys,
I'm thinking of upgrading my 512mb SD card to 2gb, but I'm not certain that the phone (Qtek 9090) will be able to work with such a large card.
Does anyone here have a 2gb card working? Any brands/models that are known to work or fail?
Thanks in advance for your help.
2gb SDCard...
Hi!
I'm currently using a 2gb SanDisk SD Card, everything works great. Oddly enough, I cannot find a card reader to connect to my PC that can read them!?!? I'm still using 2003SE and transfer movies and MP3's to the phone by using the painful multi-hour process of Exploring via ActiveSync. Uggh! This is fixed in ActiveSync 4.1 but ONLY if you are running WM5... Just having 2003SE and 4.1 will still be totally laggy for file copy.
Enjoy!
2gb SDCard...
Hi there, I also have a 2Gb Sandisk card in my XDAIIs, I also have a card reader which I purchased from PC World for £10.
Works a treat!!
Re: 2gb SDCard...
terryd1980 said:
I also have a card reader which I purchased from PC World for £10.
Works a treat!!
Click to expand...
Click to collapse
Hi! Do you have a brand name or model number of the card reader you mentioned so I can search for it on the Internet? So far I've purchased 2 different readers and neither can speak "2gb" :shock: The one I can use for 1gb cards but not 2gb cards is Belkin F5U248 rev.2, so I know that one wont work!
Thanks in advance!
Does anyone know what speed the BA supports for its SD cards?
The transfer speed is limited by the SD card type
The transfer speed should be contained within the card specification sheet
As I understand it, the maximum transfer speed is 22.5MB per second
This is for a 133X SD card, so compare accordingly
thanks for the reply. I just wanted to make sure that there wasnt a limit on the SDIO bus on the BA.
I'm planning to buy a 2gb Sandisk, but i'm not too sure whether the ultra version will work, as the compatibility list on their website only shows the standard. So i might just get the standard one to be on the safe side.
I currently use 4Gb SD card! I had only hard time finding flash card reader for my PC, which can read such a big card
I believe PPC devices has no problem with big SD cards. At least my Mio 168 PPC with GPS (PPC 2003) understand 4G card too.
But I do not believe flash manufacturers X rating. I NEVER seen real speed more than 3 Mb/s on any type of device. My card have rating x133 (22.5Mb/s). And I have no idea on what device and how did they measure that speed?
From the 2g->4gb reports it sounds like sd card size is not so much an issue for the BA, more for the SD->USB adaptor.
I have the same awful USB activesync file transfer rates reported on this thread, despite running WM5, so it sounds like my current adaptor might need upgrading.
Anyway, thanks for helping out, and I now have a 2gb 133x SD on order for next week ;-)
The typical transfer rate is 2MBps
Quotes like 133X and 150X are NOT a multiple of this but the coefficient comparison between the read and write speed
As an example for a 2MB SD card
Uploading 2MB data takes 1 second
Reading data, for that same setup, takes 1 second
For the 133X the write speed is the same, but the read time is 0.4 seconds and for the 150X card it is 0.33 seconds
This also assumes the SD interface meets SDIO v1.01
If not then the 133X and 150X cards take the same time to read as the standard card
2gb Card Reader
Hi there ottGalaen,
My card reader is made by PC Line, I think it's PC World's own brand, the Model number on the back is PCL-CR400.
Here's a link to it...
http://www.pcworld.co.uk/martprd/st...null&sm=null&tm=null&sku=818835&category_oid=
If that doesn't work just go to www.pcworld.co.uk and search for PCL-CR400
I hope this helps
Kind regards
Terry
4GB SD here with a cheapie card reader/writer. No problems at all.
2gb sd
i use a 2gb sd card sandisk with no problems
Re: 2gb SDCard...
ottGalaen said:
Hi!
I'm currently using a 2gb SanDisk SD Card, everything works great. Oddly enough, I cannot find a card reader to connect to my PC that can read them!?!? I'm still using 2003SE and transfer movies and MP3's to the phone by using the painful multi-hour process of Exploring via ActiveSync. Uggh! This is fixed in ActiveSync 4.1 but ONLY if you are running WM5... Just having 2003SE and 4.1 will still be totally laggy for file copy.
Enjoy!
Click to expand...
Click to collapse
Yo, what type of SD card that you using now (Sandisk Ultra II) ?
Just so you guys know my 4GB SD card is a Transcend 150x.
Sandisk, Panasonic or ....?
I recommend Transend 150x (fast) 4gb for about £55
What is the max sd size I can put on my Jamin? Is it 4G the max size?
In theory there is not a maximum size, but until you buy a particular brand and try it, you never fully know...
Noony said:
I recommend Transend 150x (fast) 4gb for about £55
Click to expand...
Click to collapse
Ha, I have the same and I think it's pretty good too. Don't hesitate to buy a 4GB card - the space is never enough
4gb microSD or SD
Now I use Transcend 1Gb MMCmobile and I decide to buy card with more space.
Which one 4Gb card are complitable with Qtek S200 - microSD or SD?
I want microSD because of microSD is complitable with lastest Nokia and Benq-Siemens mobile phones so it's more universal.
So, which 4Gb microSD with adapter is fully complitable with Qtek S200? Anybody test it? Or better to buy standard (full phisical size) SD?
SD is the right choice for the Prophet, but if you intend to change your phone/PPC soon you are better off with a microSD.
I myself had a 4GB SD for my Prophet but I swapped it for a Herald/P4350. Nice device but it uses microSD. That sucks
microSD so far is only available as 2GB max. If you need 4GB of space take a SD-Card if you can live with 2GB than definitly go for microSD.
It usually comes with an adapter to be used as a SD-Card.
btw 4GB is the maximum size for the Prophet.
I am always wondering about this because I use a Dopod 818 pro, and the manufacturer's website says it supports up to 1GB SD Card. So it can support a 4GB on that model? Can any verify this for me, thanks!
centralman said:
I am always wondering about this because I use a Dopod 818 pro, and the manufacturer's website says it supports up to 1GB SD Card. So it can support a 4GB on that model? Can any verify this for me, thanks!
Click to expand...
Click to collapse
Yes, 4GB SD-Card can be used by Prophet devices. I for myself used it for the last ten months without a problem. anything above 4GB I cannot guaranty. I'm not sure about SDHC-Cards if they are working in those devices.
Thanks Kelvin for your info. I will try to buy a standard 4GB SD card then. One more question, do you think the speed rating of the SD card has any effect on the performance? Would getting a 150x card be better?
Thanks Kelvin for your info. I will try to buy a standard 4GB SD card then. One more question, do you think the speed rating of the SD card has any effect on the performance? Would getting a 150x card be better?
I checked my old SD card and it was a 133x Speed. I was pleased with it. I'm not sure if the 150x performes better/faster on the Prophet, actually not even sure about the Prophet SD slot read/write performance. But in general it won't hurt going for the 150x if the price doesn't differ much from a 133x. SO GO FOR THE 150x
Thanks for your answer. Will buy it at the weekend!
It would be faster, But not on the prophet
The prophet can't use the speed since it cannot write data on a memory card so fast, Actually, Today the only speed limit is the device itself, The cards are allways getting faster and faster and faster and...........
Hello again!
I have choise between two 4Gb cards for my Prophet:
1. Transcend 4Gb Secure Digital card [MLC, 30x] (43$)
or
2. Transcend 4Gb mini Secure Digital card SDHC miniSD (43$)
or
3. Transcend 4Gb Secure Digital card 150x (50$)
Which of them is the best for Prophet (Qtek S200)?
My choise - 2nd or 3rd card (prefer 2nd because more universal) but I would like to read people's opinion. Can i feel real difference between this cards onn Prophet?
vitalis said:
Hello again!
I have choise between two 4Gb cards for my Prophet:
1. Transcend 4Gb Secure Digital card [MLC, 30x] (43$)
or
2. Transcend 4Gb mini Secure Digital card SDHC miniSD (43$)
or
3. Transcend 4Gb Secure Digital card 150x (50$)
Which of them is the best for Prophet (Qtek S200)?
My choise - 2nd or 3rd card (prefer 2nd because more universal) but I would like to read people's opinion. Can i feel real difference between this cards onn Prophet?
Click to expand...
Click to collapse
Not sure if Prophet can cope with SDHC technology, probably not.
So, 4GB SD Card will recognize in my Dopod 818 Pro with still original WM5 shipped ROM?
I tried a 4gb SDHC card with my prophet today, it didn't work. I wonder if there's a patch for sdhc support.
I have 3 micro SD cards, the 4GB that came with the Desire, an 8GB which came with my Touch HD and a 6GB which I bought for my old Vario III. Will the speed of these cards make much difference to the running of the Desire, especially with apps on the SD card. Also is IO performance more important that transfer rates?
Would like to put a higher capacity card in the phone but not if it'll slow things down.
Done some quick testing of the various cards and the 4GB card that comes with the Desire is a lot slower than the other two cards. Seems the 8GB is actually the fastest at transfer speeds and has the highest IOps so I'll swap it over for that one.
Ok, well I transferred all the stuff to the other SD card and now my phone doesn't recognise any of the installed apps. Is it not as easy as transferring the files between the 2 cards?
Check The SD Class WQritten On THe Card
My 4 GB is lot faster then another 8 GB i am using