diff --git a/src/add-ons/accelerants/nvidia/engine/nv_acc.c b/src/add-ons/accelerants/nvidia/engine/nv_acc.c
index 57ad83f885..b3301b541f 100644
--- a/src/add-ons/accelerants/nvidia/engine/nv_acc.c
+++ b/src/add-ons/accelerants/nvidia/engine/nv_acc.c
@@ -394,13 +394,13 @@ status_t nv_acc_init()
 		case NV44:
 			ACCW(NV40P_WHAT0, 0x83280eff);
 			ACCW(NV40P_WHAT1, 0x000000a0);
-			ACCW(NV45_WHAT2, 0x00000000);
-			ACCW(NV45_WHAT3, 0x00000000);
+			ACCW(NV44_WHAT2, 0x00000000);
+			ACCW(NV44_WHAT3, 0x00000000);
 			/* unknown.. */
-			NV_REG32(NV32_NV45_WHAT10) = NV_REG32(NV32_NV10STRAPINFO);
-			NV_REG32(NV32_NV45_WHAT11) = 0x00000000;
-			NV_REG32(NV32_NV45_WHAT12) = 0x00000000;
-			NV_REG32(NV32_NV45_WHAT13) = NV_REG32(NV32_NV10STRAPINFO);
+			NV_REG32(NV32_NV44_WHAT10) = NV_REG32(NV32_NV10STRAPINFO);
+			NV_REG32(NV32_NV44_WHAT11) = 0x00000000;
+			NV_REG32(NV32_NV44_WHAT12) = 0x00000000;
+			NV_REG32(NV32_NV44_WHAT13) = NV_REG32(NV32_NV10STRAPINFO);
 			break;
 		default:
 			ACCW(NV40P_WHAT0, 0x83280eff);
diff --git a/src/add-ons/accelerants/nvidia/engine/nv_acc_dma.c b/src/add-ons/accelerants/nvidia/engine/nv_acc_dma.c
index 585bddfd7d..2367164335 100644
--- a/src/add-ons/accelerants/nvidia/engine/nv_acc_dma.c
+++ b/src/add-ons/accelerants/nvidia/engine/nv_acc_dma.c
@@ -445,13 +445,13 @@ status_t nv_acc_init_dma()
 				ACCW(NV40P_WHAT0, 0x83280eff);
 				ACCW(NV40P_WHAT1, 0x000000a0);
 
-				NV_REG32(NV32_NV45_WHAT10) = NV_REG32(NV32_NV10STRAPINFO);
-				NV_REG32(NV32_NV45_WHAT11) = 0x00000000;
-				NV_REG32(NV32_NV45_WHAT12) = 0x00000000;
-				NV_REG32(NV32_NV45_WHAT13) = NV_REG32(NV32_NV10STRAPINFO);
+				NV_REG32(NV32_NV44_WHAT10) = NV_REG32(NV32_NV10STRAPINFO);
+				NV_REG32(NV32_NV44_WHAT11) = 0x00000000;
+				NV_REG32(NV32_NV44_WHAT12) = 0x00000000;
+				NV_REG32(NV32_NV44_WHAT13) = NV_REG32(NV32_NV10STRAPINFO);
 
-				ACCW(NV45_WHAT2, 0x00000000);
-				ACCW(NV45_WHAT3, 0x00000000);
+				ACCW(NV44_WHAT2, 0x00000000);
+				ACCW(NV44_WHAT3, 0x00000000);
 //schakelt screrm signaal uit op NV43, maar timing blijft werken<<<<<<<<
 //      	    pNv->PRAMDAC[0x0608/4] |= 0x00100000;//0x00680608==NVDAC_TSTCTRL haiku
               									//b20=1=DACTM_TEST ON (termination?)