More information about the PNY memory stick is needed. You are more likely to get help if you provide the specs of the memory stick.
"4 x DIMM, Max. 32GB, DDR3 MHz Non-ECC, Un-buffered Memory Dual Channel Memory Architecture"
Source: http://www.asus.com/us/Motherboards/P8B75MCSM/specifications/
Does the PNY memory stick match those specs?
More information about the PNY memory stick is needed. You are more likely to get help if you provide the specs of the memory stick.
"4 x DIMM, Max. 32GB, DDR3 MHz Non-ECC, Un-buffered Memory Dual Channel Memory Architecture"
Source: http://www.asus.com/us/Motherboards/P8B75MCSM/specifications/
Does the PNY memory stick match those specs?
Mobo supports 1066, 1333 and 1600 sticks in 1, 2, 4 and 8GB sticks....if your PNY falls into this it should work, only real exception is if you have a weaker non-K CPU, prob want to stick to 1333 or 1066 DRAM