Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Making sure that your server has the very latest PERC 6e drivers for your exact operating system and hardware architecture.
Ensure that your Windows server has all the latest hotfixes, updates and patches. If there are some that are not installed, make sure that you have a documented reason why they weren't. Check hidden updates to make sure.
Update to the latest PowerEdge BIOS. That can have some effect on hardware problems. Educate yourself on what the update does and if it has known issues with any applications and services that you are running on the server.