Hi, i have the same problem with MP600 1TB
Firmware: EGFM11.1
Read speed is ok but write speed is 1000 mb/s.
I have done several bench in the past days and the write speed was ok around 4300 mb/s , now for the second time in 2 weeks without any change in my configuration the speed is gone back to 1000 mb/s. I tryed to install also a clean Windows 10 on another ssd ad then bench the MP600 as secondary drive but nothing changed , write speed capped between 900-1000 mb/s.
I want to try to update the firmware of the MP600 but i can't find the ssd toolbox 1.2.5.7 version , on the download page i can find only 1.2.5.5 that i have installed.
System specs
AMD 3800x
Asus ROG x570 Crosshair VIII Hero (Wi-Fi) with latest bios and chipset drivers
G.Skilll Tridentz RGB 16gb 3600 Mhz
Please help! Thank you