Can't reach full speed on 850 evo although AHCI and TRIM are both enabled

[pyrotron]

Hello,

I've been getting very slow speeds (ca. 250 MBps for both read and write) in comparison to advertised speed by samsung which are around 540 MB/s read and 520 MB/s write.

I've read previously on the Internet, that AHCI works with Intel chipset and that RAID is for two drives that work together to inhance either speed or capacity or both.

The Properties of my computer are as below:
Processor: AMD FX-6300 Six core
Mainboard: ASUS M5A78L-M LE/USB3
Memory: 16GB DDR3
GPU: NVIDIA GeForce GTX 1060 3GB
Harddisk: SAMSUNG SSD EVO 850 with V-NAND Tech. 500GB with 1TB of HDD
OS: Windows 10 Pro 64x

I have same SSD on my MBP. But when I enabled AHCI, Ive been getting the promised speeds. Why isn't this working on my PC, although it has better features?
Is there any Suggestions that can help my SSD achive faster Speeds?

 

[lubosblacksmyth]

Because your mobo has only 4x SATA II (3 Gbit/s) to utilize full potential you would need sata III.

 

[kanewolf]

Yep. Your limited by your motherboard.

 

[lubosblacksmyth]

I suggest you to give it back and buy crapier ssd or better Hdd or invest into GTX 1060 with 6 GB of Vram.
But even the best HDD is no as fast as SSD even on sata II.

 

[pyrotron]

Thank you guys for the Fast reply. Im pretty much satisfied with the performance of my PC and don't think Im gonna need an Upgrade in the foreseeable future. I might just exchange it with my laptop SSD since ill be needing more space there. Thanks for the tip