weird ssd problem

[Mrak]

Hi all,

 

I have been googling like mad but cant find a thing about this.

I have 3 ssd's, 128gb adata, 128 gb kingston and 256gb 850 evo.. I have some hdd's also but they are not importat to the story.

The problem is both 128gb ssd's slow down to a crawl(30-50mb/s) after exactly 4gb writen..i tried every combination i could think of hdd to ssd, ssd to ssd, copying with explorer, with total commander, win 10, win 7, linux, two different computers..

So,its not really a crazy big problem, just quite annoying when moving bigger files cos my hdds are like 3 times faster than that. And samsung 850 evo does not have that problem. So anyone knows why they that? 

Is there any solution or is it a "small and cheap" drive syndrome?

thanks :)

[Electronics Wizardy]

What exact drives? THis seems like the slc cache is filling up on the drives. This is espically true on older smaller, cheaper ssds.

[Mrak]

Kingston is A400 and Adata is SP550

[Mrak]

I was thinking of replacing them with crucial bx500 250gb wich is also a cheaper drive but now i am kinda worried it might do the same thing