Write Cache causing crashes?

[Digital Viper-X-]

I recently enabled the Write Cache on my drives, it seemed to work, benches went up anyway, but I started getting crashes maybe once every 2-3 days, yesterday I lost all of my torrents in utorrent 0.0. weird.

Could the write cache and advanced perfomance cause this? it's the only thing that's changed since the crashes started. and I do have a UPS =p