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-   -   8GB SD cars, A difference between brands? (https://talk.maemo.org/showthread.php?t=11553)

tori 2007-11-10 12:22

8GB SD cards, A difference between brands?
 
I would like to buy an 8GB SD card for the N800,
I wonder whether There are brands that would work better (faster and without any problems),
I would like to compare between Sandisk and Kingston.
Sandisk price is about 100$ and kingston 70$.
Do you have an expierience with those cards,, shall I buy the cheaper one, or it might be a risk?

Thanks

Milhouse 2007-11-10 13:19

Re: 8GB SD cars, A difference between brands?
 
I've found that SanDisk don't support high speed mode, Kingston do and both are reliable makes. I would avoid the SanDisk and save yourself 30 bucks.

free 2007-11-10 14:27

Re: 8GB SD cars, A difference between brands?
 
I also will buy one, now that the corruption is supposed to be not present anymore.

Yesterday somebody lended me one because he bought it and after 2 days running with windows CE (I think it's on an ASUS), his sdhc was not readable (I can't see the brand because it's currently in my n800..)
So I reformated it with my n800, and now it's perfect. In fact his partition table got eaten.. so I naively realized it's not only nokia that has problems with sdhc or sd..
(he even tried under XP, not readable, but I'm not surprised about microsoft..)
And now I'm using marvelous posts about cloning and kde and .....

How to check the speed? iozone, hdparm? anything? My friend was using hdtach on windows. He also told me there can be huge difference from card to card.

I was about to buy from kingston also. Can somebody recommand any model from them?

free 2007-11-10 20:12

Re: 8GB SD cars, A difference between brands?
 
I have used bonnie to benchmark this 8Gb , it's a PNY bought from amazon (70 euros)
7.5Gb partition formatted with fat32

Code:

/media/mmc1 # bonnie -d /media/mmc1/bonnie/ -u root
Using uid:0, gid:0.
Writing with putc()...done
Writing intelligently...done
Rewriting...done
Reading with getc()...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
Version  1.03      ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
Nokia-N800-39  300M  1341  70  3175  4  3068  9  1972  97  7773  10 132.5  0
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                16    44  96 21040  96  184  96    49  96 +++++ +++  146  89
Nokia-N800-39,300M,1341,70,3175,4,3068,9,1972,97,7773,10,132.5,0,16,44,96,21040,96,184,96,49,96,+++++,+++,146,89


tori 2007-11-10 22:15

Re: 8GB SD cars, A difference between brands?
 
Does anyone know the Toshiba SDHC 8GB X150 , Does it work well with N800 ?

I_Dont_Know 2007-11-10 22:21

Re: 8GB SD cars, A difference between brands?
 
i have 2 of the kingston 8 Gb SDHC cards. they are class 6 cards and work great for music and movies. any other info needed?

Dave

tori 2007-11-10 23:59

Re: 8GB SD cars, A difference between brands?
 
yes please,
I read a lot about crashing and frying the sdhc cards. what software version do you exactly use, I prefer to set the exact thing before I fry something,,

(I saw some comments saying the kingston class 6 are slower than the sandisk class 4, and now I found at about the same price of the kingston, toshiba X150, so that makes me wonder what to buy for having the best performences and still staying on the safe side, no need for frying crashing etc')

Thankyou

free 2007-11-11 00:37

Re: 8GB SD cars, A difference between brands?
 
You could try to do the same test with bonnie, it takes about 10 minutes.
This PNY card is not mine, I'll have to give it back next week.
It probably has average or poor performance.
I think I'll buy a Kingston anyway..

The latest firmware is supposed to have solved the corruption problem that appeared sometimes. I have waited for this release before buying.

I_Dont_Know 2007-11-11 02:21

Re: 8GB SD cars, A difference between brands?
 
i am running the latest firmware 38-6 i think. i tryed to install bonnie but it errors when i try to install it.

dave

free 2007-11-11 03:58

Re: 8GB SD cars, A difference between brands?
 
Quote:

Originally Posted by I_Dont_Know (Post 93166)
i am running the latest firmware 38-6 i think. i tryed to install bonnie but it errors when i try to install it.

dave

yes I forgot something, can only be installed from commandline at the moment, i'll update later

delaroca 2007-11-15 14:28

Re: 8GB SD cars, A difference between brands?
 
Quote:

Originally Posted by I_Dont_Know (Post 93126)
i have 2 of the kingston 8 Gb SDHC cards. they are class 6 cards and work great for music and movies. any other info needed?

Dave

Anyone has experience with the A-Data cards, specifically the "TurboSD SDHC 8GB" models? It's specs read

Class 6
Support CPRM (Content Protection for Recordable Media)
Support the interface of the SD 2.0 Standard
Support Error Correcting Code (ECC) function to detect and correct errors
Support in System Programming (ISP) function to load the firmware
Support Wear Leverage function to maximize data endurance

And ca be had fairly cheap from Newegg!

-- Denis

w4csc 2007-11-20 16:24

Re: 8GB SD cars, A difference between brands?
 
Using two Transcend 8GB SDHC Class 6 cards in N800, here...$68 at Amazon. To get WinXP/Gateway to read them, I use a Sandisk MicroMate USB adapter which eliminates the card reader's year 2000 driver problem. The PC sees an 8GB hard drive, works great.

At random times, OS2007 simply stops talking to BOTH cards for no apparent reason. It reports nothing when the cards disappear because it's booting up when it seems to happen. Rebooting will not recover them, but a hard restart by removing the battery, counting to 5, replacing the battery then rebooting and everything is fine, no files corrupted....until it happens again. ("Please unplug your cable modem and plug it back in.")

It doesn't happen if you leave the tablet running all the time. I think there's a boot ROM bug it bumps into, occasionally.

This computer's too SLOW to worry about the differences in card speed.....(c;

Transcends are warrantied forever. They replaced one in another unit that was 3 years old without a fuss.

ALL these big memory cards just EAT YOUR BATTERY! Look at the specs on them, some time!


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