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gerfruc1974
Paper Tape
Posts: 2
Registered: ‎05-10-2017
Location: US
Views: 1,269
Message 1 of 4

Lenovo M900 Tiny M.2 NVMe very slow Read/Write Performance

Hello Everyone!

 

Picture in Figure 1 below shows the Read/Write Benchmark of my M900 Tiny when only the M.2 NVMe THNSN5256GPUK is installed. But when I add a second SATA drive, the Read/Write result falls as low as 147 MB/s and 206 MB/s respectively. Please look at the picture in Figure 2.

Figure 1.JPG

 

The picture in figure 2 is the Read/Write Benchmark of my M900 Tiny when the Toshiba M.2 NVMe THNSN5256GPUK and the Western Digital WDC WD10SPCX 2.5” SSD are installed.

What might be causing the slow down of my M.2 NVMe Drive?

 

Figure 2.JPG

 

I also tried using the SATA M.2 version SSD and I have no issues when installed together with the 2nd Western Digital drive. But the NVMe M.2 version are really slow when the 2nd Western Digital SATA drive is added

 

System Info:

M900 Tiny 10FL-S01U00

Windows 10 Professional

 

Thanks!

 

 

 

ThinkErEr
Punch Card
Posts: 9
Registered: ‎02-25-2017
Location: SE
Views: 1,222
Message 2 of 4

Re: Lenovo M900 Tiny M.2 NVMe very slow Read/Write Performance

It might be worth monitoring the temperature of the NVMe drive. It might become too hot and start throttling, when run together with the 2.5" SSD drive. There are indications of NVMe drives reaching extremely high temperatures, even when they are the only drive in operation in the M900 Tiny.

 

See this thread:

M900 Tiny: UEFI Bug - M.2 NVMe SSD & 8260 WiFi - ASPM disabled - Much hotter temperatures (throttle)

 

ThinkCentre M900 Tiny, i7, 16GB, Samsung 950 PRO M.2 NVMe 512GB
gerfruc1974
Paper Tape
Posts: 2
Registered: ‎05-10-2017
Location: US
Views: 1,203
Message 3 of 4

Re: Lenovo M900 Tiny M.2 NVMe very slow Read/Write Performance

Thanks ThinkErEr. This morning I tried to install the Toshiba OCZ SSD Utility to find out the temperature of my M.2 NVMe and to my surprise after I open the utility , a warning pops up that my NVMe SSD's temperature is 83C. I've read the thread about UEFI Bug (ASPM disabled) and I think that must be causing the slow Read/Write I'm getting from this NVMe SSD when it gets hot. For now, I removed the Toshiba NVMe SSD and replaced it with the SATA M.2 Version while waiting for a Fix from Lenovo. Thanks ThinkErEr. I appreciate your comment about this issue.
Shufan
What's DOS?
Posts: 1
Registered: ‎05-09-2018
Location: CA
Views: 641
Message 4 of 4

Re: Lenovo M900 Tiny M.2 NVMe very slow Read/Write Performance

Try my way. It works for me, lower at least 10 C.mmexport1525891922920[1].jpgmmexport1525891947814[1].jpg

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