diff --git a/playbook.yml b/playbook.yml
index eb9be11..155d386 100644
--- a/playbook.yml
+++ b/playbook.yml
@@ -11,6 +11,7 @@
     gpu_clock_min: "2200" # minimum GPU clock (in 3D) - defaults 500Mhz
     gpu_clock_max: "2575" # maximum GPU clock (also 3D) - range allows up to 3000Mhz.  default 2529
     gpumem_clock_max: "1075" # maximum GPU memory clock - default 1000Mhz, range allows 1075Mhz
+    gpu_mv_offset: "+100" # optional, applies offset to GPU voltage, eg: +100 = boost 100mV or 0.1V. for the 'custom' GPU profile.
     # note: (all clocks based on my non-reference 6900XT)
     # consult '/sys/class/drm/{{ card }}/device/pp_od_clk_voltage'
     card: card0 # default to card0
diff --git a/templates/amdgpu-clock.sh.j2 b/templates/amdgpu-clock.sh.j2
index 14bac41..3ffc652 100644
--- a/templates/amdgpu-clock.sh.j2
+++ b/templates/amdgpu-clock.sh.j2
@@ -23,8 +23,10 @@ echo 's 1 {{ gpu_clock_max }}' | tee /sys/class/drm/{{ card }}/device/pp_od_clk_
 # set the maximum GPU *memory* clock
 echo 'm 1 {{ gpumem_clock_max }}' | tee /sys/class/drm/{{ card }}/device/pp_od_clk_voltage
 
-# boost offset voltage 100mV / 0.1V
-echo 'vo +100' | tee /sys/class/drm/{{ card }}/device/pp_od_clk_voltage
+{% if gpu_mv_offset is defined %}
+# offset GPU voltage {{ gpu_mv_offset }}mV
+echo 'vo {{ gpu_mv_offset }}' | tee /sys/class/drm/{{ card }}/device/pp_od_clk_voltage
+{% endif %}
 
 # commit the changes
 echo 'c' | tee /sys/class/drm/{{ card }}/device/pp_od_clk_voltage