diff --git a/api.cpp b/api.cpp
index b5806dd..39b7d9a 100644
--- a/api.cpp
+++ b/api.cpp
@@ -8,7 +8,7 @@
  * Software Foundation; either version 2 of the License, or (at your option)
  * any later version.  See COPYING for more details.
  */
-#define APIVERSION "1.2"
+#define APIVERSION "1.3"
 
 #ifdef WIN32
 # define  _WINSOCK_DEPRECATED_NO_WARNINGS
@@ -121,7 +121,8 @@ static void gpustatus(int thr_id)
 		cgpu->has_monitoring = true;
 		cgpu->gpu_bus = gpu_busid(cgpu);
 		cgpu->gpu_temp = gpu_temp(cgpu);
-		cgpu->gpu_fan = gpu_fanpercent(cgpu);
+		cgpu->gpu_fan = (uint16_t) gpu_fanpercent(cgpu);
+		cgpu->gpu_fan_rpm = (uint16_t) gpu_fanrpm(cgpu);
 #endif
 		cuda_gpu_clocks(cgpu);
 
@@ -145,9 +146,9 @@ static void gpustatus(int thr_id)
 		card = device_name[gpuid];
 
 		snprintf(buf, sizeof(buf), "GPU=%d;BUS=%hd;CARD=%s;"
-			"TEMP=%.1f;FAN=%d;FREQ=%d;KHS=%.2f;HWF=%d;I=%d|",
+			"TEMP=%.1f;FAN=%hu;RPM=%hu;FREQ=%d;KHS=%.2f;HWF=%d;I=%d|",
 			gpuid, cgpu->gpu_bus, card, cgpu->gpu_temp, cgpu->gpu_fan,
-			cgpu->gpu_clock, cgpu->khashes,
+			cgpu->gpu_fan_rpm, cgpu->gpu_clock, cgpu->khashes,
 			cgpu->hw_errors, cgpu->intensity);
 
 		// append to buffer for multi gpus
@@ -246,7 +247,8 @@ static void gpuhwinfos(int gpu_id)
 	cgpu->has_monitoring = true;
 	cgpu->gpu_bus = gpu_busid(cgpu);
 	cgpu->gpu_temp = gpu_temp(cgpu);
-	cgpu->gpu_fan = gpu_fanpercent(cgpu);
+	cgpu->gpu_fan = (uint16_t) gpu_fanpercent(cgpu);
+	cgpu->gpu_fan_rpm = (uint16_t) gpu_fanrpm(cgpu);
 	cgpu->gpu_pstate = gpu_pstate(cgpu);
 	gpu_info(cgpu);
 #endif
@@ -260,10 +262,11 @@ static void gpuhwinfos(int gpu_id)
 	card = device_name[gpu_id];
 
 	snprintf(buf, sizeof(buf), "GPU=%d;BUS=%hd;CARD=%s;SM=%u;MEM=%lu;"
-		"TEMP=%.1f;FAN=%d;FREQ=%d;MEMFREQ=%d;PST=%s;"
+		"TEMP=%.1f;FAN=%hu;RPM=%hu;FREQ=%d;MEMFREQ=%d;PST=%s;"
 		"VID=%hx;PID=%hx;NVML=%d;NVAPI=%d;SN=%s;BIOS=%s|",
 		gpu_id, cgpu->gpu_bus, card, cgpu->gpu_arch, cgpu->gpu_mem,
-		cgpu->gpu_temp, cgpu->gpu_fan, cgpu->gpu_clock, cgpu->gpu_memclock,
+		cgpu->gpu_temp, cgpu->gpu_fan, cgpu->gpu_fan_rpm,
+		cgpu->gpu_clock, cgpu->gpu_memclock,
 		pstate, cgpu->gpu_vid, cgpu->gpu_pid, cgpu->nvml_id, cgpu->nvapi_id,
 		cgpu->gpu_sn, cgpu->gpu_desc);
 
diff --git a/miner.h b/miner.h
index 81833cc..245e25c 100644
--- a/miner.h
+++ b/miner.h
@@ -389,7 +389,8 @@ struct cgpu_info {
 	uint8_t intensity;
 	uint8_t has_monitoring;
 	float gpu_temp;
-	int gpu_fan;
+	uint16_t gpu_fan;
+	uint16_t gpu_fan_rpm;
 	uint16_t gpu_arch;
 	int gpu_clock;
 	int gpu_memclock;
diff --git a/nvml.cpp b/nvml.cpp
index 0458e9d..afd511d 100644
--- a/nvml.cpp
+++ b/nvml.cpp
@@ -691,7 +691,7 @@ int nvapi_init()
 // assume 2500 rpm as default, auto-updated if more
 static unsigned int fan_speed_max = 2500;
 
-int gpu_fanpercent(struct cgpu_info *gpu)
+unsigned int gpu_fanpercent(struct cgpu_info *gpu)
 {
 	unsigned int pct = 0;
 	if (hnvml) {
@@ -708,9 +708,19 @@ int gpu_fanpercent(struct cgpu_info *gpu)
 		}
 	}
 #endif
-	return (int) pct;
+	return pct;
 }
 
+unsigned int gpu_fanrpm(struct cgpu_info *gpu)
+{
+	unsigned int rpm = 0;
+#ifdef WIN32
+	nvapi_fanspeed(nvapi_dev_map[gpu->gpu_id], &rpm);
+#endif
+	return rpm;
+}
+
+
 float gpu_temp(struct cgpu_info *gpu)
 {
 	float tc = 0.0;
diff --git a/nvml.h b/nvml.h
index 0e3cd89..d9fa5e4 100644
--- a/nvml.h
+++ b/nvml.h
@@ -158,7 +158,8 @@ int nvml_get_power_usage(nvml_handle *nvmlh,
 
 /* api functions */
 
-int gpu_fanpercent(struct cgpu_info *gpu);
+unsigned int gpu_fanpercent(struct cgpu_info *gpu);
+unsigned int gpu_fanrpm(struct cgpu_info *gpu);
 float gpu_temp(struct cgpu_info *gpu);
 unsigned int gpu_power(struct cgpu_info *gpu);
 unsigned int gpu_usage(struct cgpu_info *gpu);