Hey guys, this morning when i powered my mac pro 2008 (3,1) lots of smoke coming out from the DVD drive area, i was in total shock, and quickly unplugged the power cable from the MP. I removed all HDDs, optical drive, GPU and can't find where the problem came from, so i assembled everything back and tried to power it on, then again, turns on and smoke comes out from the drive area, I removed the DVD drive and tried to power it on again but it never shows sign of life anymore. I tested the DVD drive and its in working order. What can be toast here? When i press the Diagnostic LED, it shows STBY on but in yellow color. Nothing else lights up, press power button nothing happens. Possibly power supply?