Please check on the visual BIOS under “power tab”, depending of the processor and the power supply, there should be some options to enable or disable the processor’s power states.
If you find them,please disable C6/C7 power states, C3 should be enable.
Also, please check if the power supply you are using is Haswell compatible. The following is the list of Intel PSU Design Guide:
2. Go to the top right hand where it says 12V2 Min-load
3. From the Drop down select the “Yes” option
4. The list displayed will be the latest list of PSUs that meet Intel’s requirements
You will be able to find additional information on the following thread. This thread is regarding the same issue but on an Intel DZ87KLT motherboard. https://communities.intel.com/thread/42479
Let me know.