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	How can I be sure that your software will actually use my GPU? Trial version uses GPU if it's possible, so if it doesn't -- your GPU is not supported. Basically you're need NVIDIA G80+ (8600GT and above) or ATI RV710+ (4550 and above) video card to get GPU acce... Is hardware connections (i.e. CrossFire bridges) between GPUs for software operation required? No, you don't need hardware connections (i.e. CrossFire bridges) between GPUs for GPGPU application. Starting from ~11.9 drivers AMD finally removed monitor-attached-to-each-card requirement, so now i... GPU error code 3xx The bug is related to the operation instability of your GPU. Our software uses 100% of video card capabilities. It requires good cooling and sufficient capacity of the electric power unit. In your si... What is the minimum configuration of computers for best performance? As for minimum configuration -- it's recommended to have one CPU core per each GPU core though fast enough CPU usually can handle several GPU threads. It's always better to have, for example, 2.4Ghz Q... How many GPUs does AccentOPR support? For GPGPU you don't need to link GPUs together, actually it can even brings another compatibility problems. The main limiting factors here are - number of PCI-E slots, size of videocards and drivers. ... Do your programs work applying NVIDIA CUDA video cards? Of course! The GPU kernel of our software works applying both GPU computing technologies: NVIDIA CUDA and ATI Stream.  There is one condition: the GPU kernels connects only on licenses higher th... ERROR 303. Q: When I use GPU to recover the password, error 303 appears. What this error means and how can I eliminate it? A: The error appears if the version of your display card drivers is updated. Use Forcew... I see no difference between the speed of zip passwords recovery on GPU and without it. What's the problem? If ZIP archives with classical encryption (96-bit keys) are attacked, GPU is used to accelerate the process during a brute-force attack and provided that a NVIDIA display card is installed. You can fi... I have ATI Radeon HD4870 video card. The AccentZPR program shows an error message when I initiate password searching for a Zip archive with classic encryption. What is the reason? Radeon HD 4xxx family is not fully OpenCL 1.1+ compatible, it missing (among others) feature called "atomic counters" which is required for processing ZIP/Classic passwords. Actual error here is that ... Is it possible to find out if GPU password recovery will run on my system? You can find out at what speed our GPU password recovery software will run on your system yourself. Just install a demo version of the program and try it using a test file. Here are the current versi... I assemble a system for GPU password recovery. What video card is better - AMD or NVIDIA? Generally, NVIDIA is behind AMD as it concerns performance for GPU password recovery tasks. Study the performance table containing data on different video cards:  http://golubev.com/gpuest.... I assembly a high-performance system for GPU password recovery based on AMD video cards. What shall I focuse my attention on? Yes, AMD is better for password recovery. But there are two moments: Load on GPU reaches 99% when our software runs. It means that the video card significantly heats up and a high-quality power su... I can't make my video card to search for the password set for my Zip archive. What is the reason? GPU support for attacking ZIP passwords with classic encryption is restricted.  It is available just for a brute force attack if you don't use masks. GPU is also not supported for a dictionary b... How faster one can crack RAR passwords on AMD HD 7990 than on HD 6990? We haven't done any tests with 7990 specifically, however AMD GCN architecture (which 7990 based on) is even better than previous AMD architectures for RAR password recovery. Single 7970 shows speed...

 
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