ASRock Z75 Pro3 - No Sleep

[MrFunEGUY]

So I have 10.9.3 working perfectly on my system, but sleep does not work. It is the only thing keeping my Hackintosh from being perfect. I have the ASRock Z75 Pro3 mobo. If anyone could help with this, it'd be amazing. Thanks!

 

System Specs:

 

CPU: Intel Core i5-3470
OS: Mavericks 10.9.3
Motherboard: ASRock z75 Pro3
Memory: Corsair Vengeance 8GB
Storage: Samsung 840 120GB SSD & Western Digital Caviar Blue 1TB
GPU: XFX Radeon HD 7870 2GB
PSU: Corsair Builder 430W (CX430)