Your PSU is weak at 235W...
Whats the true capacity of your power supply? What I mean by that is not whats written on the side like "400W" I mean what are the amperage (A) specs for each voltage on the side of the power supply for:
3.3V = ?A
+5V =?A
+12V =?A
+5VSB =?A
These are the minimum recommended in the AMD desktop builders guide from a few years back.
+3.3V = 28A
+5.0V = 30A
+12.0V = 15A-18A
+5VSB = 2A-2.5A
MD
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