My brand new crucial M4 ssd stopped working after few days. To be precise, the system would show the drive for about 2 minutes after each reboot then after that the drive would not show up anywhere at all. Whether you try in windows explorer or device manager or any where else. I contacted their support team but they never replied.
Crucial reportedly has better support than that. My M4 would crash after 21 minutes (exactly-ish) over a year continuous service (100+GB/day), the latest firmware fixed the problem and increased speeds. The USB firmware updater was a god send compared to the vile vile hoops I had to jump through to upgrade my OCZ drive.
I currently have an Samsung 840 1TB and has been rock solid, it replaced a 250GB intel 320. Afaik Samsung is the only manufacturer that owns the whole supply chain, flash + controller.
I got my Crucial M4 4 month ago and it stopped working too. BIOS dont show it. Got replaced with new one. After 3-4weeks failed again. Bios shows SSD but testing shows many errors. I will send it again or will try update firware.
