11-27-2013 09:04 AM - edited 11-27-2013 09:09 AM
The board you have has 6 SATA 2 and 2 SATA 3 ports so first make sure you are actually in a SATA 3 port. Unfortunately the SATA 3 ports on the MB you have are on a Marvell controller. The marvel chipset is notorious for being slow so that may be the best speed you will see on that MB.
11-10-2014 11:57 AM - edited 11-10-2014 11:58 AM
I also have very similar performance results on my 120G drive. My configuration is as follows:
Gigabyte H55M-USB3 main board
Windows 8.1 Pro
Intel Core i7 870 2.93GHz
AHCI is enabled.
SSD is used on 3GB/s port since my motherboard only has these available.
I would like to thank you beforehand for your time and support.
11-11-2014 12:42 PM
Btw, If it is not too complicated or technical to explain, since 450MB/s is very low compared to 3GB/s. why it is not possible to get full speed on that port?