SSD manufacturer, consumer unconfirmed core component replacement controversy

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SSD is a leading global manufacturer happen to replace key components, including firmware and the SSD products introduced around 2019 controller chip and NAND flash memory are taking place frequently.

Micron had to replace the NAND flash memory and firmware of the NAND flash memory of the crew differential P2 SSD QLC (4-bit) 'WD Blue SN550' after having been replaced by goods from Western Digital is also shipped later this year.

Samsung also replace the controller chips such as the '970 Ivo Plus released in 2019.

These products look just seeing it is difficult to feel the difference. But you can see that through the program, including benchmarks If you check the figures are compared to the existing market products primarily sequential write performance before and after the replacement parts.

SSD manufacturers such as Samsung and Western Digital will launch a product and replacing parts already notice the relevant information, he said.

However belatedly revealed to consumers reveals the complaint and accessibility to relevant information falls. When such change is noted that the main parts can more accurately inform the necessary means in it.

■ Replace with Micron, crew differential P2 SSD flash memory QLC

Micron has replaced the core part of the NAND flash NVMe SSD P2 was released last year in the first half of TLC (3-bit) system with QLC (4 bits) basis.

QLC flash memory SSD will cost less prepared to put up half of the 4-bit MLC flash memory in a single memory cell. Only one bit per cell, as more write speed that is slower and less able to hold even life.

US IT media, Tom's Hardware, unveiled last month in mid-own test results. The simple reading tasks in existing products, and I did not have significant difference was writing a big difference.

The media said, Write speed of existing products (TLC), while starting from the highest level of 450Mbps to 1.85Gbps away with a new one QLC flash memory starting at the top 1.16Gbps fell to the lowest 40Mbps .

■ Western Digital, 'WD Blue SN550' NAND flash replacement

Western Digital also replaced some of the parts of the 'WD Blue SN550' launched entry-level SSD products, the second half of 2019.

The original product is 96 3D TLC NAND flash chips and a controller key WD manufacture Osea created and mounted. However, the product produced after June controller chip was still only replace NAND flash memory and firmware keeping.

Chinese IT media Ex preview the results of comparing the performance of existing products and new products, existing products and the highest capacity and write speed of the new products was not a big difference.

But it reduces the 12GB Write cache is full, then the write speed to keep historical data temporarily to 390Mbps less than half of the existing product (849Mbps).

By letter that the speed is reduced not to affect up to a total write capacity (TBW) specified in the product. But to feel the difference with large files such as videos you can experience, such as frequently spent time growing if copied to SSD.

■ Samsung Electronics' 970 Ivo Plus Controller Replacement

The SEC claims that replacing some parts of NVMe SSD '970 Ivo Plus, released in January 2019 was raised.

Chinese oil tyubeo 'big car ohwan' (潮 玩 客) through a video posted on YouTube last August said, Ivo turned the 970 Plus controller chip and NAND flash.

In fact, even different products Technical Specs indicated that Samsung Electronics has released the product pages. Existing products, while the last one on the market with the Samsung controller Phoenix has been referred to as Samsung has its own controller. Product model name also was changed from 'MZVLB1T0HBLR' to 'MZVL21T0HBLU'.

Existing products while the letter that holds the data to a temporary cache memory 40GB new products increased the cache closest to the 115GB triple. However, if you run out of cache memory, while falling to around write speeds of 1500Mbps existing product, the new product is reduced to about half of 800Mbps.

■ ended in June Notice Samsung · WD

While some manufacturers have replaced the parts without clear notice it comes also claimed. However, the results covering the major manufacturers have already completed the situation through a notice Data Sheet updates and replacement parts in time.

Samsung has been changed Austin, Texas production facility downtime aftermath of an SSD controller chips 970 Ibo plus Component Changes related to CNET Korea query and selling the country 970 Ivo Plus' 1TB product is applied to the design change states, he says.

Also, last June 17 via Web sites and business partners have conducted a notice on the part changes, he said.

Western Digital has answered that was subjected to a NAND flash memory, and replacing the firmware update in June that the product was also updated with the data sheet on WD Blue SN550 NVMe SSD replacement parts CNET Korea-related queries.

■ communicate needs clearly informing different from existing products

Consumers should check the performance of the product through the articles that serve primarily benchmarks before purchasing or SSD Reviews, sayonggi of other consumers. However, few if verified both by the manufacturer Web site is registered in the data sheet or specifications.

Also Had it changed the main part after the product launch may have performance and the performance of real products that consumers have come to expect not match. But you do not know the packaging purchasing the following products tteuteun controller chip, or advance them not having to collate the part number of NAND flash.

Therefore there is a need for a method which consumers can find more accurate information before purchasing. For example, if a different model or product names so that we can clearly recognize the difference between conventional products or discontinuance of existing products can reduce unnecessary confusion.

Western Digital said, I will give, when you make changes to the existing SSD products As a result, if there is a change in the official specifications the new model number in the product further in order to provide greater transparency in the future.

We will more actively communicate with the consumer through the media, including the future Samsung Electronics official said.