[SOLVED] Sata ssd write speed in Asus Tuf B450m pro gaming

[Ds_Tech]

Hi
I have Asus Tuf B450m pro gaming, with 16gb ram, Amd R5 1400.
i have to ssd wd green m.2 240gb and Crucial bx500 480gb sata ssd.
When I run Crystal disk benchmark the read speed test all are good,
But the write speed get slow below 10MBps Both in sequential and random writes for few times it fluctuates speed. {also in copy paste big data}
I tried many times but it goes down from 400MBps to <10Mbps or just start at <10MBps and
result also shows sometime <10MBps. My previous Motherboard GA320m S2h never showed like these speed always at good ssd speed only.
What could be the error or setting be to change and correct the speed.

 

[rgd1101]

how full are the ssd?

 

[Ds_Tech]

Both ssd have 2 partitiones and 50% filled.

 

[USAFRet]

Copying from what, to what?

Copying what, exactly? Composition of the data counts a lot.

The WD Green is probably the slowest SSD from one of the mainstream manufacturers. And the BX from Crucial isn't much better.

 

[Ds_Tech]

Copying from what, to what?

Copying what, exactly? Composition of the data counts a lot.

The WD Green is probably the slowest SSD from one of the mainstream manufacturers. And the BX from Crucial isn't much better.

Ok Thanks
But in my previous motherboard a320m there was no slow down or speed below <10MBps in WD Green if it filled 60%.
now copying large file >4gb there was speed fluctuate <10MBps from 200MBps for 7-10 secs and
I have tested single ISO and compressed zip only.