diff --git a/JHA/cuda_jha_keccak512.cu b/JHA/cuda_jha_keccak512.cu
index 8a052f58..47c3594d 100644
--- a/JHA/cuda_jha_keccak512.cu
+++ b/JHA/cuda_jha_keccak512.cu
@@ -106,7 +106,7 @@ __global__ void jackpot_keccak512_gpu_hash(uint32_t threads, uint32_t startNounc
     {
         const uint32_t nounce = startNounce + thread;
 
-        const int hashPosition = nounce - startNounce;
+        const uint32_t hashPosition = nounce - startNounce;
 
         // Nachricht kopieren
         uint32_t message[18];
diff --git a/quark/cuda_bmw512.cu b/quark/cuda_bmw512.cu
index 7a1cf170..d88e7436 100644
--- a/quark/cuda_bmw512.cu
+++ b/quark/cuda_bmw512.cu
@@ -203,7 +203,7 @@ void quark_bmw512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint64_t *
 	{
         const uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
 
-        const int hashPosition = nounce - startNounce;
+        const uint32_t hashPosition = nounce - startNounce;
         uint64_t *const inpHash = &g_hash[8 * hashPosition];
 
 		uint2 msg[16];
diff --git a/quark/cuda_jh512.cu b/quark/cuda_jh512.cu
index 2f644245..c805aeac 100644
--- a/quark/cuda_jh512.cu
+++ b/quark/cuda_jh512.cu
@@ -304,7 +304,7 @@ void quark_jh512_gpu_hash_64_final(uint32_t threads, uint32_t startNounce, uint6
 	{
 		const uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = (uint32_t*)&g_hash[8 * hashPosition];
 
 		uint32_t x[8][4] = {
diff --git a/quark/cuda_jh512keccak512.cu b/quark/cuda_jh512keccak512.cu
index 3d77b9fb..7a7bae37 100644
--- a/quark/cuda_jh512keccak512.cu
+++ b/quark/cuda_jh512keccak512.cu
@@ -281,7 +281,7 @@ void quark_jh512Keccak512_gpu_hash_64(uint32_t threads, uint32_t startNounce, ui
 	{
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *Hash = &g_hash[16 * hashPosition];
 		uint32_t x[8][4] = {
 			{ 0x964bd16f, 0x17aa003e, 0x052e6a63, 0x43d5157a },
diff --git a/quark/cuda_quark_blake512.cu b/quark/cuda_quark_blake512.cu
index bc91cd30..c33972b7 100644
--- a/quark/cuda_quark_blake512.cu
+++ b/quark/cuda_quark_blake512.cu
@@ -35,7 +35,7 @@ void quark_blake512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint32_t
 #if USE_SHUFFLE
 	const int warpID = threadIdx.x & 0x0F; // 16 warps
 	const int warpBlockID = (thread + 15)>>4; // aufrunden auf volle Warp-Blöcke
-	const int maxHashPosition = thread<<3;
+	const int maxhashPosition = thread<<3;
 #endif
 
 #if USE_SHUFFLE
@@ -46,7 +46,7 @@ void quark_blake512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint32_t
 	{
 		const uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 
 		uint64_t *inpHash = &g_hash[hashPosition*8];
 		uint2 block[16];
diff --git a/quark/cuda_quark_groestl512.cu b/quark/cuda_quark_groestl512.cu
index e18adf65..f545a432 100644
--- a/quark/cuda_quark_groestl512.cu
+++ b/quark/cuda_quark_groestl512.cu
@@ -68,7 +68,7 @@ quark_doublegroestl512_gpu_hash_64_quad(uint32_t threads, uint32_t startNounce,
 
         const uint32_t nounce = g_nonceVector ? g_nonceVector[thread] : (startNounce + thread);
 
-        const int hashPosition = nounce - startNounce;
+        const uint32_t hashPosition = nounce - startNounce;
         uint32_t * inpHash = &g_hash[hashPosition<<4];
         const uint16_t thr = threadIdx.x & (THF-1);
 
diff --git a/quark/cuda_quark_keccak512.cu b/quark/cuda_quark_keccak512.cu
index abf4970e..6a5dc20e 100644
--- a/quark/cuda_quark_keccak512.cu
+++ b/quark/cuda_quark_keccak512.cu
@@ -33,7 +33,7 @@ void quark_keccak512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint2 *
     {
         uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
 
-        int hashPosition = nounce - startNounce;
+        uint32_t hashPosition = nounce - startNounce;
         uint2 *inpHash = &g_hash[8 * hashPosition];
 
         uint2 s[25];
@@ -148,7 +148,7 @@ void quark_keccak512_gpu_hash_64_final(uint32_t threads, uint32_t startNounce, u
 	{
         const uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
 
-        const int hashPosition = nounce - startNounce;
+        const uint32_t hashPosition = nounce - startNounce;
 		uint2 *inpHash = &g_hash[8 * hashPosition];
 
 		uint2 s[25] = 
diff --git a/quark/cuda_skein512.cu b/quark/cuda_skein512.cu
index 62087d5e..8e48dcf6 100644
--- a/quark/cuda_skein512.cu
+++ b/quark/cuda_skein512.cu
@@ -388,7 +388,7 @@ void quark_skein512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint64_t
 
 		const uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint64_t *Hash = &g_hash[8 * hashPosition];
 
 		h[0] = skein_p[0] = vectorize(Hash[0]);
@@ -1912,7 +1912,7 @@ void quark_skein512_gpu_hash_64_final(const uint32_t threads, const uint32_t sta
 
 		const uint32_t nounce = (g_nonceVector != NULL) ? g_nonceVector[thread] : (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		const uint64_t *const inpHash = &g_hash[8 * hashPosition];
 
 		h0 = make_uint2(0x749C51CEull, 0x4903ADFF);
diff --git a/x11/cuda_x11_cubehash512.cu b/x11/cuda_x11_cubehash512.cu
index 059e2e3a..359d8d0c 100644
--- a/x11/cuda_x11_cubehash512.cu
+++ b/x11/cuda_x11_cubehash512.cu
@@ -210,7 +210,7 @@ void x11_cubehash512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint32_
 	{
 		const uint32_t nounce = startNounce + thread;
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = &g_hash[16 * hashPosition];
 
 		uint32_t x[2][2][2][2][2] =
diff --git a/x11/cuda_x11_echo.cu b/x11/cuda_x11_echo.cu
index 2d739cbb..25ae92d3 100644
--- a/x11/cuda_x11_echo.cu
+++ b/x11/cuda_x11_echo.cu
@@ -354,7 +354,7 @@ void x11_echo512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint32_t *c
     if (thread < threads)
     {
         const uint32_t nounce = (startNounce + thread);
-        const int hashPosition = nounce - startNounce;
+        const uint32_t hashPosition = nounce - startNounce;
         uint32_t *const Hash = &g_hash[hashPosition<<4];
 		cuda_echo_round(sharedMemory, Hash);
     }
@@ -462,7 +462,7 @@ void x11_echo512_gpu_hash_64_final(uint32_t threads, uint32_t startNounce, const
 
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		const uint32_t *const Hash = (uint32_t*)&g_hash[hashPosition *8];
 
 		uint32_t h[16];
diff --git a/x11/cuda_x11_luffa512_Cubehash.cu b/x11/cuda_x11_luffa512_Cubehash.cu
index 520dc149..b5eeece4 100644
--- a/x11/cuda_x11_luffa512_Cubehash.cu
+++ b/x11/cuda_x11_luffa512_Cubehash.cu
@@ -763,7 +763,7 @@ void x11_luffaCubehash512_gpu_hash_64(uint32_t threads, uint32_t startNounce, ui
 	{
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = (uint32_t*)&g_hash[8 * hashPosition];
 
 		uint32_t statebuffer[8];
diff --git a/x11/cuda_x11_shavite512.cu b/x11/cuda_x11_shavite512.cu
index 4e35dc55..cdae4aa9 100644
--- a/x11/cuda_x11_shavite512.cu
+++ b/x11/cuda_x11_shavite512.cu
@@ -1280,7 +1280,7 @@ void x11_shavite512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint64_t
 	{
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = (uint32_t*)&g_hash[hashPosition*8];
 
 		// kopiere init-state
diff --git a/x11/cuda_x11_simd512.cu b/x11/cuda_x11_simd512.cu
index 7c159ffc..0dba2a2f 100644
--- a/x11/cuda_x11_simd512.cu
+++ b/x11/cuda_x11_simd512.cu
@@ -545,7 +545,7 @@ x11_simd512_gpu_expand_64(uint32_t threads, uint32_t startNounce, const uint64_t
 	{
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 
 		uint32_t *inpHash = (uint32_t*)&g_hash[8 * hashPosition];
 
@@ -571,7 +571,7 @@ x11_simd512_gpu_compress1_64(uint32_t threads, uint32_t startNounce, uint64_t *g
 	{
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = (uint32_t*)&g_hash[8 * hashPosition];
 
 		Compression1(Hash, hashPosition, g_fft4, g_state);
@@ -585,7 +585,7 @@ x11_simd512_gpu_compress2_64(uint32_t threads, uint32_t startNounce, uint64_t *g
 	{
 		const uint32_t nounce =  (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 
 		Compression2(hashPosition, g_fft4, g_state);
 	}
@@ -600,7 +600,7 @@ x11_simd512_gpu_compress_64_maxwell(uint32_t threads, uint32_t startNounce, uint
 	{
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = (uint32_t*)&g_hash[8 * hashPosition];
 
 		Compression1(Hash, hashPosition, g_fft4, g_state);
@@ -617,7 +617,7 @@ x11_simd512_gpu_final_64(uint32_t threads, uint32_t startNounce, uint64_t *g_has
 	{
 		const uint32_t nounce = (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = (uint32_t*)&g_hash[8 * hashPosition];
 
 		Final(Hash, hashPosition, g_fft4, g_state);
diff --git a/x13/cuda_x13_fugue512.cu b/x13/cuda_x13_fugue512.cu
index 59ae860c..f001f658 100644
--- a/x13/cuda_x13_fugue512.cu
+++ b/x13/cuda_x13_fugue512.cu
@@ -620,7 +620,7 @@ void x13_fugue512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint32_t *
 		}
 		const uint32_t nounce =  (startNounce + thread);
 
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *const Hash = &g_hash[hashPosition*16];
 
 #pragma unroll 16
@@ -862,7 +862,7 @@ void x13_fugue512_gpu_hash_64_final(const uint32_t threads, const uint32_t start
 			mixtabs[(768 + threadIdx.x)] = ROTR32(mixtabs[threadIdx.x], 24);
 		}
 		const uint32_t nounce =  (startNounce + thread);
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		const uint32_t *h = &g_hash[hashPosition * 16];
 		uint32_t Hash[16];
 #pragma unroll 16
diff --git a/x17/cuda_x17_haval512.cu b/x17/cuda_x17_haval512.cu
index 067a732f..976a4307 100644
--- a/x17/cuda_x17_haval512.cu
+++ b/x17/cuda_x17_haval512.cu
@@ -297,7 +297,7 @@ void x17_haval256_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint64_t *
 	if (thread < threads)
 	{
 		const uint32_t nounce =  (startNounce + thread);
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *inpHash = (uint32_t*)&g_hash[8 * hashPosition];
 		union {
 			uint8_t h1[64];
diff --git a/x17/cuda_x17_sha512.cu b/x17/cuda_x17_sha512.cu
index 16226749..161778cd 100644
--- a/x17/cuda_x17_sha512.cu
+++ b/x17/cuda_x17_sha512.cu
@@ -157,7 +157,7 @@ void x17_sha512_gpu_hash_64(uint32_t threads, uint32_t startNounce, uint64_t *g_
 	if (thread < threads)
 	{
 		const uint32_t nounce = (startNounce + thread);
-		const int hashPosition = nounce - startNounce;
+		const uint32_t hashPosition = nounce - startNounce;
 		uint32_t *inpHash = (uint32_t*)&g_hash[8 * hashPosition];
 		union {
 			uint8_t h1[64];