for that i believe it has no software adjustment that would be on the hardware not bfg sadly so yea you would have put new resistors to adjust it or up or down I'm guessing you want down for less power usages ?.


I saw a guide some place on how to for both Zeus miner and Grindseed   .




read me in 5.4 if you missed it   .

GRIDSEED
--------

Gridseed units, at the present time, come in two versions: Blade - a 40 chip
unit and Orb - a 5 chip unit. Orb units can be used to mine both SHA256d and
scrypt based coins whereas the Blade is scrypt only, although BFGMiner only
supports scrypt mode at this time.

BFGMiner allows a miner to connect both types of units to a single miner
instance and provides for granular control of the clock frequencies for each
device and each chip on each device. The basic use of this feature is to use the
--set option on from the command line:

bfgminer --scrypt -S gridseed:all --set gridseed@:clock=825

for multiple devices, add multiple --set arguments.

Additionally, these can be added to the bfgminer.conf file for persistence like
this:

"set" : [
        "gridseed@:clock=825",
        "gridseed@:clock=850",
        "gridseed@:clock=875"
]

To find the device serial number, start bfgminer and press to manage
devices, then or through the list of devices and take
note of the device serial number in the device information shown.

...
Select processor to manage using up/down arrow keys
 GSD 0a:       |  74.4/ 72.9/ 10.2kh/s | A:  1 R:0+0(none) HW:0/none
  STM32 Virtual COM Port from STMicroelectronics
Serial: 6D85278F5650
Clock speed: 875
...

So for example, an entry would look like this:
        gridseed@6D85278F5650:clock=875


ZEUSMINER
---------

Zeusminers do not support autodetection, so you will need to use --scan to probe
for them:

-S zeusminer:\\.\COM3

You should also configure the driver for your specific device:

    --set zeusminer:clock=N        Clock frequency (default: 328)
    --set zeusminer:chips=N        Number of chips per device
        Blizzard    :  6          Cyclone     :  96
        Hurricane X2: 48 (2*24)   Hurricane X3:  64 (2*32)
        Thunder   X2: 96 (4*24)   Thunder   X3: 128 (4*32)
Note: if you set this option incorrectly, the device may underperform and/or
      misreport hashrate.

For example:

bfgminer --scrypt -o stratum+tcp://pool:port -u user -p pass -S zeusminer:\\.\COM3 --set zeusminer:clock=328 --set zeusminer:chips=128

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