What is the maximum capacity of SD cards that XDA supports?
Can I put 128MB SD card in XDA?
If you have used the search button or looked on other postings you'll have seen that the maximum capacity used in the XDA is in the moment at 512MB
(I don't now, if any bigger is available...)
So you can use your "small"SD card with 128 megs without problems....
Regards
Stefan
Related
Anybody from the gurus can explain to me why my SD card of 128MB shows on the XDA a 118,78MB capacity ? There is nothing on it yet. Just inserted it!
Is it a standard thing to lose 10MB ?
I had heard about HDDs differences when formatting them, not about SD cards losing that much! (???)
THX,
Gear
That's probably caused by the card manufacturer - they don't count 1MB as 1024 kB but as 1000 kB. So physically the card has less capacity that it should have.
Wuffi is right. This is an old trick all storage makers pull. Your card is ok and there is nothing to be done.
Thank you guys. This happens on both my SD cards, a Hagiwara and a Sundisk.
Gear
I want to buy a sd card but i m not sure which one is better
Lexar SD 256MB 32X Speed (about 70$) or
SanDisk 512MB SD (about 106$)
512 mb looks great choice but the other is high speed ???????????
i need your comments
sandisk is not know for it's speed as it is
but very fast SD cards will never reach their top speed
in the xda their sd interface is not fast enough
if you search the forum you'll find some guy who did some tests
think the sd card did 10MB /sec in the sdcard reader on the pc
and only about 1.3 MB /sec in the xda
not all that impressive
And for the XDAII? Waht is the speed of the port?
well i forget if it were tests made on the xda1 or 2
but arm 200 which the xda 1 have dont have a nativ interface
for sd so it use an external chip and the xcale 400 that the
xda2 have have a native interface
too bad that nativ interface is WAY slower then the external chips
pda's used to use
there were some posts before xmas about places where the xda it would be way faster then the xda2
but that was in the old forum not sure if those posts are lost now
here is a line from a writing about xscale's performance on ipaq
which i asume would be the same for xda2 unless they added a mem controller and dident use the internal xscale one
Because the XScale CPU itself contains an MMC controller that supports SD and SDIO, and that's almost certainly what HP is using, rather than adding a chip of their own. MMC and SD are very similar, almost identical. The difference is that MMC uses a 1-bit data bus, and SD uses a 4-bit bus. See, we're back to buses again. Since the XScale's controller is MMC-based, the new iPAQs will have 1-bit bus transfer rates. Hang on to your CF sleeves for big data.
Click to expand...
Click to collapse
from
http://www.writingonyourpalm.net/column020624.htm
ogn said:
I want to buy a sd card but i m not sure which one is better
Lexar SD 256MB 32X Speed (about 70$) or
SanDisk 512MB SD (about 106$)
512 mb looks great choice but the other is high speed ???????????
i need your comments
Click to expand...
Click to collapse
I got a Billington 512MB SD card 40x speed. It is OK. Cost about SGD$245.
Hi all,
I need your opinion. I'm planning to buy a Sandisk 512MB SD Card. How much does it compare with the 256SD Card with regards to speed? Is reading/writing much slower because of its bigger size? BTW my device is XDA. Thanks
My understanding of speed diffs
I don't think 256 vs 512 will make speed differences. The speed differences come between specific cards. My brief research yesterday suggested to me that SanDisk are kinda slow, even the Ultra II cards. It seems the fastest card, consistently, is the Panasonic. I have a plain 256MB sandisk card it PocketMechanic benchmarks it at 0.7x. I will test my new Panasonic card when it arrives later today (hopefully!).
Just for comparison, Lexar 32x cards are rated at 4.8MB/s, the Panasonic is supposedly rated at 10MB/s.
Another data point, I saw a discussion on Amazon.com reviews about the SanDisk 512 and somebody stating it was faster than the 256.
All this leads to: you really need to benchmark the specific cards you are interested in to see if they meet your speed needs. Speed is really variable, people talking about a single process that takes 45 minutes on one card and just like 1 minute on another card (brand).
Got the panasonic card
I got the panasonic card. It writes at "2.9x" as opposed to "0.7x" I got with the stock sandisk. That is better than 4 times the speed. Benchmarked using Pocket Mechanic on an XDA.
Hi,
Can anyone having micro SD 2GB ultra card can tell us about its performance? I have heard that 2Gb card as such had some impact on the performance of the phone and slows it a bit down? Is there any improvement using this faster card?
I have SanDisk 2GB MicroSD - in my opinion it's quicker than my previous 1GB.
I have seen sandisk 2gb ultra II micro sd card in the market. I just wanted to know if it improves the performance over the simple 2gb micro sd card?
i have a SanDisk 2GB standard MicroSD and performance is great, no slow downs on anything.
its a lot faster than a 1Gb card (can't remmeber make, probably SanDisk) that was with my Universal, that was sloooow...
sorry that that doesnt really answer your question, but in my opinion i think that there isn't much gain in opting for the Ultra MicroSD card, as there's not anything wrong with the standard one!
Comparing performance with different flash cards, be sure they are formatted with the same file system (FAT16/FAT32) and the same cluster size. Instead, your comparision results ae meaningless.
Lurker0 said:
Comparing performance with different flash cards, be sure they are formatted with the same file system (FAT16/FAT32) and the same cluster size. Instead, your comparision results ae meaningless.
Click to expand...
Click to collapse
And what are the best in your opinion? (cluster size and 16/32)
sergiopi said:
And what are the best in your opinion? (cluster size and 16/32)
Click to expand...
Click to collapse
I'd suggest you to search for existing threads and articles.
There is no a one-for-all solutions. One thing that I'd recommend is to format with one FAT copy (again, do a search). Then, the bigger the cluster size, the better berformance, but, OTOH, the more space is wasted. With a statistics provided e.g. by SK Tools anybody may make their decision on how to balance. SK Tools also a good tol to format cards with.
As for FAT16 vs FAT32, this is the last thing to decide. If a chosen cluster size allows FAT16 for the card, better to use it. If it does not - you have no a choice but to use FAT32. The only drawback of FAT16 is a fixed root directory size, which is not a big isue with large (16K to 64K) cluster sizes required for FAT16 on big cards.
But the main point for this thread still is: comparing flash card speeds, use the same format parameters.
Had anyone done this kind of comparison on different micro sd cards?
It imaging that this level of testing is about pointless, the typical bottleneck here is likely to be the reader device, not the card.
The phone will likely be the slowest aspect, at least when compared to a desktop reader...
You might find a turtle that can sprint, but it will still be a turtle
Hi all, sorry if this is a bit of a noob question.....
What is the maximum RAM the SGS II can utilise. I see it comes with 16gb built in. But I have read that you can expand it by plugging in a 32gb SD card...
Does this mean that it can have 48gb, or you can only expand to 32?
Thanks....
The phone only comes with 1GB of RAM and you can't add anymore. Except possibly adding swap.
OK now for what you actually meant, you can add a 32GB micro sd card to increase the storage space to 48GB.
And to answer your question, yes, adding a large SD card it will have more storage, but not RAM. It supports SDHC-standard which goes up to 32GB (some phones support the new SDXC standard that goes up to 2TB) .
Coo!
Sent from my GT-I9100 using Tapatalk
Cheers guys... I thought it would be 48 judging by the Samsung page....
Differing reports from reps in shops. 1 said anything up to 64gb and another 32gb....
Again thanks....
BTW. What is this classed as if it isn't RAM? And the SGS II does have 16gb storage RAM built in, doesn't it?
RAM: Random Access Memmory, used to store running bits of the OS, programs, etc. Whats stored in the ram will be lost when the power goes off. We have 1GB of this.
ROM/NAND Flash Memory: Flash memory that wont lose data when the power goes off, slower than RAM, but we have more of it, in this case 16GB built in, but some is used for the OS, data and other bits.