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Im very new to all this and have my system running with a GTX 1080 Founders Edition from Nvidia

I did a quick test on a wpa2 hash with rockyou.txt  and this was the output:

Code:
Session..........: hashcat
Status...........: Cracked
Hash.Type........: WPA/WPA2
Hash.Target......: Documents/HouseE2.hccapx
Time.Started.....: Thu May 11 16:40:09 2017 (27 secs)
Time.Estimated...: Thu May 11 16:40:36 2017 (0 secs)
Guess.Base.......: File (Documents/wordlists/rockyou.txt)
Guess.Queue......: 1/1 (100.00%)
Speed.Dev.#2.....:   345.0 kH/s (49.09ms)
Recovered........: 3/3 (100.00%) Digests, 1/1 (100.00%) Salts
Progress.........: 14343297/14343297 (100.00%)
Rejected.........: 4733979/14343297 (33.00%)
Restore.Point....: 13835830/14343297 (96.46%)
Candidates.#2....: 0817115022 -> PASWORD
HWMon.Dev.#2.....: Temp: 57c Fan: 37% Util:100% Core:1847MHz Mem:4513MHz Bus:16


This is a very significant improvement than a cpu attempt which took about 2 hours..  But im wondering if i should do anything to optimize the GPU, how do i overclock, and/or does hashcat automatically optimize the GPU
You should be able to get at least 400 KH/s out of a GTX 1080 on stock clocks. Look at raising the power limit and changing the PowerMizer mode before you start overclocking.
you mean in the NVIDIA X Server Settings? I tried that and it still cracks at the same speed to the second.. i'll try again and check the kH/s
Ok, weird.. it defaulted back, but just changed it again to Maximum Performance and got 341.9 kH/s (48.77ms) so even less on the kH/s hmm.. what could be the problem? I am NOT using a riser.. plugged directly into the pci slot.

my watt consumption jumps from around 70 to about 220 when running hashcat
(05-12-2017, 12:53 AM)epixoip Wrote: [ -> ]You should be able to get at least 400 KH/s out of a GTX 1080 on stock clocks. Look at raising the power limit and changing the PowerMizer mode before you start overclocking.

here are my nvidia details:

==============NVSMI LOG==============

Timestamp                           : Thu May 11 21:24:59 2017
Driver Version                      : 381.22

Attached GPUs                       : 1
GPU 0000:01:00.0
    Product Name                    : GeForce GTX 1080
    Product Brand                   : GeForce
    Display Mode                    : Enabled
    Display Active                  : Enabled
    Persistence Mode                : Disabled
    Accounting Mode                 : Disabled
    Accounting Mode Buffer Size     : 1920
    Driver Model
        Current                     : N/A
        Pending                     : N/A
    Serial Number                   : 0322116051820
    GPU UUID                        : GPU-0aa1fbc4-3b6c-b617-fc31-e79717e3e21b
    Minor Number                    : 0
    VBIOS Version                   : 86.04.17.00.01
    MultiGPU Board                  : No
    Board ID                        : 0x100
    GPU Part Number                 : N/A
    Inforom Version
        Image Version               : G001.0000.01.03
        OEM Object                  : 1.1
        ECC Object                  : N/A
        Power Management Object     : N/A
    GPU Operation Mode
        Current                     : N/A
        Pending                     : N/A
    GPU Virtualization Mode
        Virtualization mode         : None
    PCI
        Bus                         : 0x01
        Device                      : 0x00
        Domain                      : 0x0000
        Device Id                   : 0x1B8010DE
        Bus Id                      : 0000:01:00.0
        Sub System Id               : 0x119E10DE
        GPU Link Info
            PCIe Generation
                Max                 : 3
                Current             : 3
            Link Width
                Max                 : 16x
                Current             : 16x
        Bridge Chip
            Type                    : N/A
            Firmware                : N/A
        Replays since reset         : 0
        Tx Throughput               : 0 KB/s
        Rx Throughput               : 11000 KB/s
    Fan Speed                       : 35 %
    Performance State               : P0
    Clocks Throttle Reasons
        Idle                        : Not Active
        Applications Clocks Setting : Active
        SW Power Cap                : Not Active
        HW Slowdown                 : Not Active
        Sync Boost                  : Not Active
        Unknown                     : Not Active
    FB Memory Usage
        Total                       : 8110 MiB
        Used                        : 563 MiB
        Free                        : 7547 MiB
    BAR1 Memory Usage
        Total                       : 256 MiB
        Used                        : 5 MiB
        Free                        : 251 MiB
    Compute Mode                    : Default
    Utilization
        Gpu                         : 0 %
        Memory                      : 0 %
        Encoder                     : 0 %
        Decoder                     : 0 %
    Ecc Mode
        Current                     : N/A
        Pending                     : N/A
    ECC Errors
        Volatile
            Single Bit            
                Device Memory       : N/A
                Register File       : N/A
                L1 Cache            : N/A
                L2 Cache            : N/A
                Texture Memory      : N/A
                Texture Shared      : N/A
                Total               : N/A
            Double Bit            
                Device Memory       : N/A
                Register File       : N/A
                L1 Cache            : N/A
                L2 Cache            : N/A
                Texture Memory      : N/A
                Texture Shared      : N/A
                Total               : N/A
        Aggregate
            Single Bit            
                Device Memory       : N/A
                Register File       : N/A
                L1 Cache            : N/A
                L2 Cache            : N/A
                Texture Memory      : N/A
                Texture Shared      : N/A
                Total               : N/A
            Double Bit            
                Device Memory       : N/A
                Register File       : N/A
                L1 Cache            : N/A
                L2 Cache            : N/A
                Texture Memory      : N/A
                Texture Shared      : N/A
                Total               : N/A
    Retired Pages
        Single Bit ECC              : N/A
        Double Bit ECC              : N/A
        Pending                     : N/A
    Temperature
        GPU Current Temp            : 46 C
        GPU Shutdown Temp           : 99 C
        GPU Slowdown Temp           : 96 C
    Power Readings
        Power Management            : Supported
        Power Draw                  : 41.48 W
        Power Limit                 : 180.00 W
        Default Power Limit         : 180.00 W
        Enforced Power Limit        : 180.00 W
        Min Power Limit             : 90.00 W
        Max Power Limit             : 217.00 W
    Clocks
        Graphics                    : 1607 MHz
        SM                          : 1607 MHz
        Memory                      : 5005 MHz
        Video                       : 1442 MHz
    Applications Clocks
        Graphics                    : N/A
        Memory                      : N/A
    Default Applications Clocks
        Graphics                    : N/A
        Memory                      : N/A
    Max Clocks
        Graphics                    : 1911 MHz
        SM                          : 1911 MHz
        Memory                      : 5005 MHz
        Video                       : 1708 MHz
    Clock Policy
        Auto Boost                  : N/A
        Auto Boost Default          : N/A
    Processes
        Process ID                  : 907
            Type                    : G
            Name                    : /usr/lib/xorg/Xorg
            Used GPU Memory         : 349 MiB
        Process ID                  : 1714
            Type                    : G
            Name                    : compiz
            Used GPU Memory         : 208 MiB
        Process ID                  : 2185
            Type                    : G
            Name                    : /usr/bin/nvidia-settings
            Used GPU Memory         : 0 MiB
        Process ID                  : 2342
            Type                    : G
            Name                    : unity-control-center
            Used GPU Memory         : 2 MiB
Start here:

https://hashcat.net/forum/thread-5051-po...l#pid28022

Then raise the power limit with `nvidia-smi -pl <limit>`
(05-12-2017, 04:24 AM)epixoip Wrote: [ -> ]Start here:

https://hashcat.net/forum/thread-5051-po...l#pid28022

Then raise the power limit with `nvidia-smi -pl <limit>`

I tried that, but its already at its max of 217..  I am thinking i need to up the temp threshold, because if i monitor close, i get up to 400 but as soon as the temp gets up to 75c it seems to start throttling down back to around 350
could part of the problem be the display that is also running on that card at 3440x1440?
Ok so right now i have the power limit set to the max 217, and im running it with a evga hybrid all in one water cooler block.. its running at 39 degrees celcius and still I am only getting around 370kH/s

any ideas?
(05-13-2017, 12:44 AM)elidell Wrote: [ -> ]Ok so right now i have the power limit set to the max 217, and im running it with a evga hybrid all in one water cooler block..  its running at 39 degrees celcius and still I am only getting around 370kH/s

any ideas?

Overclock with nvidia-settings commands:

Code:
nvidia-settings -a GPUPowerMizerMode=1 --ctrl-display=:0
nvidia-settings -a GPUGraphicsClockOffset[3]=200 --ctrl-display=:0
nvidia-settings -a GPUFanControlState=1 --ctrl-display=:0

The above example sets the clock to +200 Mhz faster than the factory clock.  Also, the fan control state can be controlled by hashcat with --gpu-temp-retain.  Manual control of the fan isn't strictly necessary, which makes that bottom line optional.

In order to reset, you might need to do this:

Code:
nvidia-settings -a GPUGraphicsClockOffset[3]=0 --ctrl-display=:0
nvidia-settings -a GPUPowerMizerMode=0 --ctrl-display=:0
nvidia-settings -a GPUFanControlState=0 --ctrl-display=:0

You might need to do this first, before the above.

Code:
cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bak

nvidia-xconfig -s -a --force-generate --allow-empty-initial-configuration \
   --cool-bits=12 --registry-dwords="PerfLevelSrc=0x2222" \
   --no-sli --connected-monitor="DFP-0" -o /etc/X11/xorg.conf

sed -i '/Driver/a     Option         "Interactive" "False"' /etc/X11/xorg.conf

Cool bits needs the proper settings.  You might need to reboot after you set this.

Search my posts or these forums for more information.
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