Connect with us

Hi, what are you looking for?


PCIe 5.0 SSDs could require active cooling to curb thermal throttling

The big picture: Early solid state drives were touted as being more energy efficient than their spinning hard drive counterparts. As speeds ramped up with each successive generation, so too did power requirements and heat output. Some higher-end Gen 4 drives already benefit greatly from dedicated cooling, and we’re likely to see that trend become more widespread with future SSDs.

Thermal management is going to be more important than ever as PCIe 5 devices start hitting the market.

Sebastian Jean, chief technical officer at Phisondiscussed the situation in recent interviews with StorageReview and MSI Insider,

“As the speed continues to go up with each new generation, our challenge will continue to be to manage the heat,” Jean said.

As a general rule of thumb, Jean notes that each additional GB/s of speed an SSD delivers requires about one extra watt of power. “We’re trying to stick within roughly the same power envelope as a 7 GB/s SSD as we scale up to 14 GB/s by making a lot of other changes,” Jean added.

One way to reduce power requirements is to cut back on the number of NAND channels used by the SSD.

“In practical terms, you no longer need eight channels to saturate the Gen4 and even Gen5 PCIe interface. You can potentially saturate the host interface with four NAND channels, and reducing the number of back-end channels reduces the total SSD power by typically 20 to 30 percent,” Jean said.

Advertisement. Scroll to continue reading.

Another method is to use a smaller process node – for example, going from 16nm to 7nm. Phison notes that smaller process nodes can operate at higher frequencies with lower voltage. Drives on smaller nodes also require less energy to toggle transistors, further reducing power used and ultimately, heat generated.

Despite the improvements, Jean said he expects to see passive heatsinks with Gen 5 devices. “Eventually, we’ll need to have a fan that’s pushing air right over the heatsink, too,” he added.

While not ideal, passive / active cooling is certainly doable with most desktop configurations. Laptops and small-for-factor desktops, however, could present more of a challenge due to their extremely limited footprints.

Click to comment

Leave a Reply


Online Business Success

What is the key to turning the strongest sales leads into revenue-generating contracts? Independent research suggests a strong pre-sales operation drives huge value in...

Top Stories

Three years after being ousted as CEO of WeWork, Adam Neumann has jumped on the crypto bandwagon, raising $70 million in the first major...

Top Stories

Bitcoin (BTC) could be in for a return to levels not seen since before its 2020 bull market if history repeats itself. That was...

Top Stories

The need for a clear, balanced concept of the issue was a constant theme at the panel discussion of crypto’s carbon footprint at the...

Social Media

The success of TikTok largely comes down to participatory trends, and the capacity for anyone to not only consume clips in the app, but...

Top Stories

Brazilian exchange Mercado Bitcoin announced its partnership with the Stellar Development Foundation (SDF) on Tuesday. The company said it intends to develop one of...


You May Also Like


Introductions get a lot of attention. I’ve explored the topic of how to write them even though as a reader, I always skip them....

SEO Guide

There are all kinds of pictures of the world on the internet, but to find one of these specific pictures that you want to...

Online Business Success

The internet is now our nervous system. We are constantly streaming and buying and watching and liking, our brains locked into the global information...

Online Business Success

You can think of link building in many ways. I like to call it tedious, painful, and a test of patience. It’s also necessary...