Help How to do a complete reboot?

[veg-0-matic]

I have this problem with my EVO in that every now and then it will start freaking out and get hot. Something sucks the battery, as I've seen it go from 95% to 20% in a matter of minutes.
The heat, by the way, isn't coming from the battery, but from the top of the phone, near the power switch.
Anyhoo, I've learned that I can solve the problem by pulling the battery. I've tried just turning the phone off, but when I do, it just remains hot and the battery continues to drain. It's like turning the phone off is really only putting it to sleep; when I turn it back on again, it reboots much faster than when I've pulled the battery.
So. Is there some way to turn the phone completely off--similar to pulling the battery--without actually pulling the battery? I hate to keep taking the back off my phone.
Thanks!

 

[DonB]

You can either turn Fastboot off and then reboot the the phone, the truly shuts it down, and the other way is a battery pull for 30 seconds.

 

[goo]

I am wondering if you should get that phone serviced if it's getting hot by the power button. How long have you had the phone and how long has it been doing this?