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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Hi all.
Is it just me or do the large cards seem less reliable than the "old" style <2GB ones?
this is the third large card I have had which failed, the first two (8GB and 16GB) worked for a while then the 8GB one developed a "slowdown when hot" problem but still worked. The 16GB stopped working completely but repaired itself when I zerofilled the card with Winhex (took two hours!) and as far as I know is still fine.
This 8GB is made by Sandisk, is a Class 2 and was bought locally in retail packaging. Worked fine up until last night when the phone said "Do you want to format?" took out and card wouldn't recognise in PC so reformatted. Tried again this morning and went to transfer data to it from the PC, got to 300 files of 1500 and fell over with the usual Windows error reserved for removal of a device.
Put back in phone, PC, tried other card reader, Admin tools-Disk management, Winhex, nothing.
Just measured the card with my DMM and it has 0.288V in one direction and 0.305V in the other on the "long" pins, comparing with two similar cards there should be at least a 0.2V difference.
I think the regulator is gone, comments?
EDIT:- the supplier over here were kind enough to replace it with a new x4 card, and USB pendrive. seems that failed cards are rare but it does happen.
thanks, -A "Bother" said Pooh, as he was backscattered for the 47th time...
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Aand a pretec 8GB "tough" drive. Started to degrade a couple of days ago with a "disk check" message and taking forever to scan, and finally conked out during attempts to salvage the recent data. Now reads as 0 bytes UsBest USB2 Shop I bought it from said it was out of warranty. At this point I am seriously suspecting I have some sort of voodoo flash killing powers, because every drive I have used keeps going bad. Thank $Deity for humyo online storage, all but the most recent stuff was fine.
EDIT:- Carbonite is faster...
If anyone wants the drive shell, let me know as it might be useful for putting a small torch/etc in as it screws together watertight.
Well i never had problem with cards itself, but with card readers. In general i'm using only kingston (2x2GB, 2GB micro, 8GB micro, 4GB CF 133x class 6), only one piece i have from good-ram (16GB Class 6 - best card so far i had).
But i would never buy sandisk, they have ability to slow its write speed after some usage, and their ultra and extreme specs nobody tells anything. Only from Class X marked cards you can be able to get proper speeds
Be aware of mini USB card readers, i think they are not decreasing voltage to 3.3V but higher, because my cards got hot when in use. Singe then i use bigger multi card readers, and never had problems, with speed or temperatures.
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8GB MicroSD epic fail
