So, recently I got M500 for my laptop and it's working really great. Obviously I read several reviews and they state that this model has a series of caps that provide drive with power to flush caches in case main power goes out. So, I was wondering if it's OK to turn off write cache flushing given that this drive kind of does have it's own power source. Not that I'm thinking that it would increase performance, it's more of a curiosity thing.
I would say no, contrary to what a lot of tweak guides claim on the internet, turning off cache flushing or cache writing on the drive actually decreases performance. I tested this awhile back on my own system by turning these same features off on my harddrives and my C300 128 SSD on my desktop and noticed that peformance hit the basement, is the best way I can describe where the performance went.
Needless to say, I turned the caching features back on and left them on.