diff --git a/config/zen/bli_cntx_init_zen.c b/config/zen/bli_cntx_init_zen.c
index bcf793cb8..09ca2dee0 100644
--- a/config/zen/bli_cntx_init_zen.c
+++ b/config/zen/bli_cntx_init_zen.c
@@ -136,6 +136,7 @@ void bli_cntx_init_zen( cntx_t* cntx )
 
 */
 
+      // Zen optmized level 3 cache block sizes
 #ifdef BLIS_ENABLE_ZEN_BLOCK_SIZES
    #if BLIS_ENABLE_SINGLE_INSTANCE_BLOCK_SIZES
   
@@ -155,7 +156,7 @@ void bli_cntx_init_zen( cntx_t* cntx )
         bli_blksz_init_easy( &blkszs[ BLIS_NC ],  4080,   4080,  4080,  4080 );
 
 #endif
-	bli_blksz_init_easy( &blkszs[ BLIS_NC ],  4080,  2040,  4080,  4080 );
+ 	//bli_blksz_init_easy( &blkszs[ BLIS_NC ],  4080,  2040,  4080,  4080 );
 	bli_blksz_init_easy( &blkszs[ BLIS_AF ],     8,     8,    -1,    -1 );
 	bli_blksz_init_easy( &blkszs[ BLIS_DF ],     8,     8,    -1,    -1 );
 
diff --git a/config/zen/bli_family_zen.h b/config/zen/bli_family_zen.h
index 01544e8b5..526e3a8b0 100644
--- a/config/zen/bli_family_zen.h
+++ b/config/zen/bli_family_zen.h
@@ -42,7 +42,7 @@
 #define BLIS_DEFAULT_MR_THREAD_MAX 1
 #define BLIS_DEFAULT_NR_THREAD_MAX 1
 
-
+#define BLIS_ENABLE_ZEN_BLOCK_SIZES
 #define BLIS_ENABLE_SMALL_MATRIX
 #define BLIS_ENABLE_SMALL_MATRIX_TRSM
 
diff --git a/frame/3/gemm/bli_gemm_front.c b/frame/3/gemm/bli_gemm_front.c
index 610c86f24..bb6f2ee3b 100644
--- a/frame/3/gemm/bli_gemm_front.c
+++ b/frame/3/gemm/bli_gemm_front.c
@@ -52,13 +52,7 @@ void bli_gemm_front
 	obj_t   a_local;
 	obj_t   b_local;
 	obj_t   c_local;
-#if 0
-	gint_t M = bli_obj_length( c );
-    	gint_t N = bli_obj_width( c );
-    	gint_t K = bli_obj_width( a );
 
-	if( !(M && N && K)) return;
-#endif
 
 
 #ifdef BLIS_ENABLE_SMALL_MATRIX