diff --git a/include/aio.h b/include/aio.h
index 5f8f310..3a492fa 100644
--- a/include/aio.h
+++ b/include/aio.h
@@ -46,11 +46,12 @@ struct aio_t {
 	float water_temp;
 	float t_q;
 	float t_b;
+	float t_e;
 	uint16_t pump_speed;
 	uint16_t fan_speed[2];
 };
 
-void aio_detect(struct aio_t *aio, float t_quiet, float t_balanced);
+void aio_detect(struct aio_t *aio, float t_quiet, float t_balanced, float t_extreme);
 void aio_update(struct aio_t *aio);
 void aio_close(const struct aio_t *aio);
 
diff --git a/src/aio.c b/src/aio.c
index dd0a1e2..eb4cde0 100644
--- a/src/aio.c
+++ b/src/aio.c
@@ -129,7 +129,7 @@ static void aio_set_fan_curve(libusb_device_handle* dev, const struct curve_poin
 	applog(LOG_INF, "set up AIO fan curve");
 }
 
-void aio_detect(struct aio_t *aio, const float t_quiet, const float t_balanced) {
+void aio_detect(struct aio_t *aio, const float t_quiet, const float t_balanced, const float t_extreme) {
 	libusb_init(nullptr);
 	aio->handle = libusb_open_device_with_vid_pid(nullptr, AIO_USB_VID, AIO_USB_PID);
 	if (aio->handle == nullptr) {
@@ -139,6 +139,7 @@ void aio_detect(struct aio_t *aio, const float t_quiet, const float t_balanced)
 
 	aio->t_q = t_quiet;
 	aio->t_b = t_balanced;
+	aio->t_e = t_extreme;
 
 	const struct curve_point_t fan_curve[] = {
 		{ 35, SPD2DTY(360) },
@@ -170,11 +171,15 @@ void aio_update(struct aio_t *aio) {
 	aio->pump_mode = aio_get_pump_mode(aio->handle);
 	aio_get_fan_speed(aio->handle, aio->fan_speed);
 
-	if (aio->water_temp > aio->t_b && aio->pump_mode != BALANCED)
+	if ((aio->pump_mode == QUIET && aio->water_temp > aio->t_b) || (aio->pump_mode == EXTREME && aio->water_temp < aio->t_b))
 		aio_set_pump_mode(aio->handle, BALANCED);
 
-	if (aio->water_temp < aio->t_q && aio->pump_mode != QUIET)
-		aio_set_pump_mode(aio->handle, QUIET);
+	if (aio->pump_mode == BALANCED) {
+		if (aio->water_temp > aio->t_e)
+			aio_set_pump_mode(aio->handle, EXTREME);
+		if (aio->water_temp < aio->t_q)
+			aio_set_pump_mode(aio->handle, QUIET);
+	}
 
 	aio_usb_release(aio->handle);
 }
diff --git a/src/main.c b/src/main.c
index 1f3ca78..2e036a9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -108,7 +108,7 @@ static void *display_thread(void *arg) {
 	lcd_set_custom_char(&lcd, 2, &(lcd_glyph_t){0, 0, 8, 21, 21, 2, 0, 0});	  // home (tilde)
 	lcd_set_custom_char(&lcd, 3, &(lcd_glyph_t){4, 14, 21, 4, 4, 4, 0});	  // up arrow
 	lcd_set_custom_char(&lcd, 4, &(lcd_glyph_t){4, 4, 4, 21, 14, 4, 0});	  // down arrow
-	lcd_set_custom_char(&lcd, 5, &(lcd_glyph_t){0, 0, 15, 21, 21, 17, 15, 0});  // home (tilde)
+	lcd_set_custom_char(&lcd, 5, &(lcd_glyph_t){0, 0, 15, 21, 21, 17, 15, 0});  // games (steam?)
 
 	/* main display loop */
 	applog(LOG_START, "reached display main loop");