Tried this CPU on two ECS motherboards (6m-a2 & mcp61m) and neither will boot. Both are rated for a 95 watt CPU. What am I missing here?
Those motherboards are Socket AM2 and Socket AM3, respectively, while the FX-4300 is Socket AM3+. Those motherboards do not support that processor.
ECS > NFORCE6M-A
ECS > MCP61M-M3
Your reply is only half right. While the NFORCE6M-A is AM2; the NFORCE6M-A2 is AM3. I was under the impression that this processor was compatible with AM3 boards.
Socket AM3+ - Wikipedia
These boards can be physically compatible, but the manufacturer must write a new bios for them
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