12V---Normal-12.384 Volts
5VCC---Normal-4.974 Volts
3.3VCC---Normal-3.367 Volts
VBAT---Normal-3.028 Volts
VCPU---Normal-0.121 Volts
VDIMMAB---Normal-1.209 Volts
5VSB---Normal-5.026 Volts
3.3VSB---Normal-3.35 Volts 
VBMC 1.2V---Normal-1.218 Volts
VPCH 1.0V---Normal-1.018 Volts
 
The above is a reading from sensors over IPMI. This PSU is being used to power 28 drives in total (I know, overkill, but think of the boot amps!)

Use bios pc health status/digital multimeter to check 12v rail fluctuation as software readings can be inaccurate.

I doubt your voltage reading through software is correct. But, if the reading is correct, there is nothing to be concerned about. It is within ATX tolerance.

Yeah, don't trust the software they can be quite a bit off. 
 
What Aida64 reads vs my multi-meter under load on my 1300 G2.
 
+12V: 11.889V / 12.101V
+5V: 4.961V / 5.10V
+3.3V: 3.168V / 3.351V