Slow Gen5 SSD on upgraded drive for G814FP

[BrianWenhold]

I recently upgraded my memory from 32 GB to 64GB and added a 2TB Gen5 SSD, but have not been able to get close to the speed my drive is capable. I checked to make sure the drive was in the Gen5 slot and attached a photo below. Is there something I need to update or configure to achieve the drives' advertised performance?

Sequential Read

Up to 14,700 MB/s * Performance may vary based on system hardware & configuration.

Sequential Write

Up to 13,400 MB/s * Performance may vary based on system hardware & configuratio.n

[Daniel_Shaw]

It is thermal throttling. These gen5 ssd aren't designed for laptops they require a heat sink which usually comes with high end pc motherboards. I tried about 3 drives gen5 all overheated which is what yours is doing and slowing down to save its self. 

I settled with a gen 4 samsung 990 pro 4tb had no issues.

[BrianWenhold]

The temperature for the SSD is usually around 46 °C and 63 °C under the load of the speed test. I don't think there is throttling until 70 °C. Guessing the * on the SSD speed means they know it will never come close to expected Gen5 SSD speeds. 

[BrianWenhold]

Upon further review, it looks like the thermal throttling could be the issue. Used HWiNFO to check the temp, and the ASIC controller was always above 70 °C. 

[Daniel_Shaw]

Thats the one. Under regular usage , ie not hitting it with benchmarks it will probably do small workloads like loading games fine. But I would still swap out that drive.

[BrianWenhold]

I purchased a low profile heat sync for my SSD stick, and the temperature now never exceeds 60 °C. However, I am still only achieving 57% of the drive's performance, even with the temperature well below the thermal throttling point. I am guessing there is an intentional gimping of the drive performance. One of the reasons I purchased this laptop is that I knew I could add a Gen5 SSD to get the storage space I needed for development. Why bother with the extra cost of the newer interface if it will never achieve speeds beyond Gen4?