Haswell's sleep power draw is substantially lower than that of previous generations, and it can trigger some PSUs' under-voltage protection and force a system reset.
You may review the link below. It includes also Haswell(C6/C7) supporting PSU’s as a reference:
Alternately, you should check with the power supply directly to see if the power supply complies with such requirements
Thank you very much!!!!
Does anyone know some Intel source to the question of my thread?
Where can I find more Information from Intel regarding the ATX requirements for chipset H87?
I suggest that you check through your power supply manufacturer directly for this.