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Question nvme very slow write speed

anaf9adnac

Junior Member
Oct 1, 2020
2
0
6
I have a 3900x with a x570 mobo and 1TB sabrent rocket nvme m2 PCIe 4.0 disk. My write benchmarks are very very poor.

Chipset and windows drivers are upto date. what gives ? how can i troubleshoot?




 

razel

Platinum Member
May 14, 2002
2,311
80
101
Looks like it got nearly 3.9GB/s writes in one of the runs even with a lowly queue depth of 4 so I wouldn't worry too much. Regardless, enable the 'write caching' policy in Computer Management and then in 'Defragment and Optimize Disks', issue the TRIM command for the drive and give it 5-10 mins to make sure it finishes the garbage collection after the TRIM commands are issued.
 

anaf9adnac

Junior Member
Oct 1, 2020
2
0
6
Thank you , i tried it , still not close to the 4Gbps write throughput. i swear this was consistently possible 10 months ago when i setup this rig
 

Shmee

Memory and Storage, Graphics Cards
Super Moderator
Sep 13, 2008
4,685
659
126
Possibly it is slowing down due to filling up? As drives fill up, they get a bit slower.
 

razel

Platinum Member
May 14, 2002
2,311
80
101
I really wouldn't worry. You did achieve 3.9GB with only a queue depth of 4, so that proof, it can reach max speeds without much effort.
 

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