diff --git a/include/sys.h b/include/sys.h
index c902344..648c283 100644
--- a/include/sys.h
+++ b/include/sys.h
@@ -26,7 +26,7 @@ struct network_t {
 };
 
 struct syssensors_t {
-	uint16_t fan_speed[2]; // left and right cpu fans
+	uint16_t fan_speed[1]; // just one fan (pump) we monitor
 	int16_t t_sensor;      // ntc temp sensor
 	char hwmon[64];
 };
diff --git a/src/main.c b/src/main.c
index e6572cd..a5409f8 100644
--- a/src/main.c
+++ b/src/main.c
@@ -115,8 +115,6 @@ static void *display_thread(void *arg) {
 
 		{
 			// prepare some tricky sensors
-			const uint16_t avg_fan_speed = (sensors->sys.fan_speed[0] + sensors->sys.fan_speed[1]) / 2;
-
 			char gpudelta[5];
 			const uint8_t delta = sensors->gpu.temp_hotspot - sensors->gpu.temp_edge;
 			snprintf(gpudelta, sizeof(gpudelta), "%c%d", 1, delta);
@@ -136,7 +134,7 @@ static void *display_thread(void *arg) {
 			lcd_writef(&lcd, 34, 1, "%d/%d%c", sensors->gpu.temp_edge, sensors->gpu.temp_hotspot, 0);
 
 			lcd_writef(&lcd, 0, 2, "%.0fW", sensors->cpu.ptotal);
-			lcd_writef(&lcd, 5, 2, "%dR", avg_fan_speed);
+			lcd_writef(&lcd, 5, 2, "%dR", sensors->sys.fan_speed[0]);
 			lcd_writef(&lcd, 12, 2, "%c%s %c%s", 3, P_BYTES(sensors->net.upload, 1), 4, P_BYTES(sensors->net.download, 1));
 			lcd_writef(&lcd, 26, 2, "%4dR", sensors->gpu.fan_speed);
 			lcd_writef(&lcd, 32, 2, "%3d/%3dW", sensors->gpu.power_avg, sensors->gpu.power_cap);
diff --git a/src/sys.c b/src/sys.c
index 210b77a..e104558 100644
--- a/src/sys.c
+++ b/src/sys.c
@@ -84,7 +84,7 @@ void sys_update_sensors(struct syssensors_t *s) {
 	if (!s->hwmon[0])
 		return;
 	static char buf[8];
-	fast_read_num_u16(s->hwmon, "/fan2_input", buf, &s->fan_speed[0], 1);
-	fast_read_num_u16(s->hwmon, "/fan7_input", buf, &s->fan_speed[1], 1);
+	fast_read_num_u16(s->hwmon, "/fan2_input", buf, &s->fan_speed[0], 1); // cpu fan, aka aio pump now
+	// fast_read_num_u16(s->hwmon, "/fan7_input", buf, &s->fan_speed[1], 1); // cpu opt
 	fast_read_num_i16(s->hwmon, "/temp5_input", buf, &s->t_sensor, 1000);
 }