ASRock C741 series supports ONLY E-Stepping ES/QS/PRD processors, same than supermicro/Tyan.What about the ASRock Rack SPC741D8-2L2T or GIGABYTE MS03-CE0?
choose E-stepping ES and you can buy any motherboard you want.Got it. Are there any options other than gigabyte that are worth considering? Or is that the only option at the moment that doesn't involve modding the BIOS?
all of them should work. processor not properly installed or other things wrong (bad mobo/cpu/psu)If it is my CPU that is faulty or incompatible, do you think those two QS CPUs would be fine?