Increase S1 overheat to 75 degrees C
diff --git a/driver-bitmain.h b/driver-bitmain.h
index be066c1..e3f19a7 100644
--- a/driver-bitmain.h
+++ b/driver-bitmain.h
@@ -40,7 +40,7 @@
#define BITMAIN_TEMP_TARGET 50
#define BITMAIN_TEMP_HYSTERESIS 3
-#define BITMAIN_TEMP_OVERHEAT 60
+#define BITMAIN_TEMP_OVERHEAT 75
#define BITMAIN_DEFAULT_TIMEOUT 0x2D
#define BITMAIN_MIN_FREQUENCY 10