This is my second Ultra, after the first one corrupted files lasting ~2 month, and a new problem…
This new stick does not like system power on as it will produce an I/O error hence switching this device to read only (Win7). I can fix the issue by pulling it off the USB3 port, plug it into an USB2 port and format/testing it there no problems - then plug it back into the USB3 port and all is well until the next day pwr on. To prevent the pwr on issue I now pull the stick after pwr off (in the evening) and plug it back in after the system is booted up to desktop - this way all is fine and working properly. I have a 5GB SpeedBoost cache activated on this stick.
I somehow have the feeling the core problem is the slow write speed of this stick (~20MB/s while reading is a ~100MB/s) hence it takes too long to write the cache file hence triggering an timeout resulting into an IO error?!
The USB3 controller is a VIA integrated on the mobo (Gigabyte 990FXA-UD3 rev4.0)
I am not exactly amused about Sandisk product quality standards.
If anyone got an idea how to fix this issue lemme know please