I’ve had this 64GB USB3.0 Extreme Sandisk Flash Drive for a while now. It works on my home computer, that I put together, in USB 3.0 perfectly, but the work computer, that I also put together, only works in 2.0 ports. I even purchased an additional PCI-E card for the front USB3.0 ports which has 3.0 ports for the rear as well but it doesn’t work either. When I say, “doesn’t work” I mean it is not even detected by windows at all.
It should also be known that I use a USB3.0 card reader for high-speed UDMA compact flash cards by Lexar which works just fine in both the work motherboard and PCI-e card.
Home computer motherboard: EVGA Z77 151-IB-E699-KR
To the best of my knowledge the USB 3.0 specs are not a hardened standard yet. Thus different vendors may impliment it differently in their machines. And different manufacturers may impliment it differently in their flash drives.
I would like to refresh this thread. I’ve been looking everywhere I could for a solution but to no avail. All i’ve been able to find were threads of the same problem but not solution.
So far all I know is that some motherboards are compatible but some are not. As to why that is, there is no answer. I hope the someone that using a PCI-e card for USB3.0 that is also using the same flash drive will share with us the card he is using.
I have a similar issue. I also have the 64GM USB 3.0 Extreme. It was working just fine on my home computer’s 3.0 ports, but for no apparent reason, it has suddenly stopped working. It still works on the 2.0 ports, and 2.0 devices work on the 3.0 ports, but the 3.0 device doesn’t register at all when plugged into the 3.0 port. I don’t have any other 3.0 devices, so I can’t tell if it’s the device or the port. It’s maddening. I’ve been searching online for some sort of advice or answer to the problem, but I haven’t found anything yet.
It’s a shame, because I love this little drive and it was working up until about a week ago.
You know what’s really strange? If you look at the performance of this drive to the others on the market, it blows them away by a strong 30-50% in some various tests.
Typically, similar technology across the board don’t deviate more than 10-20% from the norm. In this case, I’m somewhat unsurprised, even suspicious of how suddenly something so effective is suddenly rendered practically useless.
Whatever the case may be, I still think there has to be a pci-e card, at least as a quick and dirty solution, to be able to keep using this drive, that is compatable.
As far as I know the USB 3.0 standard has been set for a long time. There is a new standard being introduced, 3.1, which doubles the theorestical limit up to 10 Gb/sec. Many of these users are reporting that the problem they have (like me) is they were using the Extreme successfully in USB 3.0 ports then it stopped responding. It now only works in USB 2.0 ports.
I had my second drive fail this morning on a very new (Intel H87 chipset) motherboard. SanDisk apparently doesn’t read these forums, because they seem surprised at this problem.
No more SanDisk for me, if only because of their horrible support. They grilled me for such detail about my first disk that I felt like a criminal being interrogated. When I asked them why, they said they wanted to be sure I owned a “genuine” Extreme drive. They think I would defraud them over a few dollars? It sould cost more to send it back than it cost originally!
Hello everybody. i think i may have solved the issue. at least for me. i have my flash drive connected to a key chain that when plugged in pulls down on the drive. im too lazy to remove it from the drive so i do this every time i plug it in. a few weeks ago my drive also stopped working in 3.0 ports but continues to work in 2.0 points just like everybody else. i decided to pull it apart to see if anything had fried, and i found that the far right trace of the usb connector has peeled off the board from the stress that i put it under. not sure if this is anyone elses problem but i hope i shed some light in that this is probably a hardware problem