Satellite L50 and SSD - performance problem

Hello

I recently bought a Toshiba Satellite L50-A-1EH and the first thing I did was to replace the hard drive with an SSD.
Initially the SSD is not recognized by the BIOS, like many other users across the Internet reported as well.

To prove this statement here are other people having the same problem, and people have tried different SSD.

Link: [1st edition SSD | http://forums.toshiba.com/t5/General-Troubleshooting/E45t-cant-detect-Samsung-840-pro-SSD/td-p/503785]
Link: [2nd edition SSD | http://forums.toshiba.com/t5/General-Troubleshooting/Switching-HDD-to-SSD-on-Satellite-S55-A5176-Problem/td-p/590778]

The problem can be solved by changing a setting in the BIOS.

[The SATA interface parameter] [enforcement] to [battery life].

However, this workaround solution comes with a cost, which is performance.
The SSD is able to transfer files at a speed of 500 MB/s.

However, in this mode the SSD transfers files at 133 MB/s.
I lose 4 x the speed of the SSD.

In my view this problem in the BIOS.

Can someone help me solve this problem?

With sincere friendships.
Arthur BOULELLI.

I also discovered today that is not serious if I am running in mode UEFI BIOS (CSM).

Combined with AHCI BIOS mode it takes [parameter] Interface SATA for battery life, otherwise the SSD is not recognized.

The Toshiba using the latest firmware (to July 23, 2014), which is v1.70.
The SSD is a Samsung 840 Evo and has the latest firmware, which is EXT0BB6Q.

Given that the SATA interface is set to battery life, the SATA interface is set to SATA1, who of course tops out at 133 MB/s.

For me, it is simply amazing that a laptop with a Core i7-4700MQ the year 2014 cannot detect an SSD SATA3.

Does anyone have a suggestion how to fix this?

Tags: Toshiba

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