Visual NAND Reconstructor 4.0 with GPU ECC correction!
It’s been a while since the last update, we have been very busy trying to eliminate one of the bottlenecks of the chip-off data recovery process. For many years all data recovery engineers around the globe have struggled against the same issue – ECC correction was getting slower and slower due to capacity increase and code complication. It was literally the nightmare to correct ECC on 128GB device and larger. Even with top-notch CPUs. Now it’s in the past.
We have developed the breakthrough technology of ECC correction on GPU! Increase of performance, or better to say, reduction of time required for correction, is almost limitless now! The more powerful your graphic card is the faster ECC correction will be completed.
Here’s the full list of new features and resources:
The new chips have been added to database
VNR - GPU ECC CORRECTION
We have developed a well optimized GPU ECC/BCH decoding algorithm with almost linear time decrease required for correction depending on performance of graphic card. In some cases with adequately powerful GPUs it is possible to achieve tenfold performance increase. The feature works on most of the codes and all common GPU vendors are supported. Even integrated GPUs may provide 1.5x performance increase comparing to CPU computing.
Here’s results of our tests calculated on 4GB dumps from different controllers and ECC sizes:
Following data and table shows precise times of correction with some impressive results.
ECC correction time (per 4GB dump)
For the best performance we recommend to use 16/32 Gb of RAM and NVMe SSD.
Usage of the same graphic card for both video output and ECC computation may cause slowing down and artifacts. The best practice is to use integrated card as video output while discrete card is used for ECC computation only.
The features is officially supported and tested on Windows 10 x64 only.
Warning! Make sure that cooling system of your graphic card is adequate and ready for 99% load for hours.
We are not responsible for any damages or consequences caused by hardware overheating while using VNR.
We keep improving our software and hardware, and researching new usages of GPU for future updates!
New NAND chips
45499BB37E UFD monolith
New scramblers (XOR keys)