In an attempt to vet some stability issues I've been having the last few days, I've come to decide my risers could be a contributor (drivers crash with them, sporadically, and with 7950s directly in mobo: stable for hours and hours +).

What  brand risers do you use / trust to put in your rigs?

Are there any you're suspicious of for quality reasons?

Other reasons behind these crashes you can think of?