6 GPU advanced password recovery
Hardware
- Motherboard: MSI Z77A-GD65
- CPU: Intel Core i3-3250, 3.5GHz
- GPU: 6x Sapphire DUAL-X R9 280X 3GB GDDR5 OC
- Memory: 8GB DDR3 1600MHz
- Storage: 60 GB SSD
- PSU: 2x 1000watt
- PCI-e riser cables
Install and configure OS
- I've had some problems with AMD drivers on Linux, so i've used Windows 8.1 instead.
- Install the OS with one (or max 3) GPU's.
- Add all other GPU's.
- Install the latest AMD drivers, 14.4, using this mod: https://litecointalk.org/index.php?topic=11761.0
- Install a better terminal emulator for Windows https://code.google.com/p/conemu-maximus5/
oclHashcat
- Download oclHashcat
- Unzip oclHashcat
- Download some wordlists
- SHA512 example using only lower case and decimal characters.
Session.Name...: oclHashcat Status.........: Running Input.Mode.....: Mask (?1?1?1?1?1?1?1?1) [8] Hash.Target....: Hash.Type......: sha512crypt, SHA512(Unix) Time.Started...: Fri Jun 06 23:53:59 2014 (6 mins, 53 secs) Time.Estimated.: Wed Aug 31 06:56:21 2016 (2 years, 86 days) Speed.GPU.#1...: 6773 H/s Speed.GPU.#2...: 6865 H/s Speed.GPU.#3...: 6867 H/s Speed.GPU.#4...: 6896 H/s Speed.GPU.#5...: 6909 H/s Speed.GPU.#6...: 6776 H/s Speed.GPU.#*...: 41085 H/s Recovered......: 0/1 (0.00%) Digests, 0/1 (0.00%) Salts Progress.......: 16814080/2821109907456 (0.00%) Skipped........: 0/16814080 (0.00%) Rejected.......: 0/16814080 (0.00%) HWMon.GPU.#1...: 91% Util, 56c Temp, 50% Fan HWMon.GPU.#2...: 91% Util, 58c Temp, 51% Fan HWMon.GPU.#3...: 91% Util, 58c Temp, 40% Fan HWMon.GPU.#4...: 91% Util, 58c Temp, 40% Fan HWMon.GPU.#5...: 91% Util, 52c Temp, 34% Fan HWMon.GPU.#6...: 91% Util, 58c Temp, 39% Fan [s]tatus [p]ause [r]esume [b]ypass [q]uit =>