My Crucial SSD's speed is below advertised speed

To ensure your Crucial SSD is working optimally, please ensure:

1. Your partition is 4K aligned

2. You have the latest drivers for your interface (i.e. Intel Rapid Storage Technology Driver) 

3. Your motherboard supports SATA 6.0Gbps (SATAIII) interface

4. You are running the latest firmware for your device. 

To ensure 4K aligned drive, please download AS-SSD utility, you can verify if your drive is 4K aligned when the alignment is green (the 4th line, states 1024K, this number should be divisible by 4, this indicates a 4K aligned partition)