diff --git a/src/add-ons/accelerants/nvidia/GetAccelerantHook.c b/src/add-ons/accelerants/nvidia/GetAccelerantHook.c
index 01634a771d..34dc6ed5de 100644
--- a/src/add-ons/accelerants/nvidia/GetAccelerantHook.c
+++ b/src/add-ons/accelerants/nvidia/GetAccelerantHook.c
@@ -208,8 +208,7 @@ status_t check_acc_capability(uint32 feature)
 	}
 
 	//fixme:
-	if ((si->settings.dma_acc && (feature != B_SCREEN_TO_SCREEN_BLIT)) ||
-		si->ps.card_arch >= NV40A)
+	if (si->settings.dma_acc && (feature != B_SCREEN_TO_SCREEN_BLIT))
 	{
 		LOG(4, ("Acc: Function not setup yet; not exporting hook %s.\n", msg));
 		return B_ERROR;
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 468a626a64..b82d8756f2 100644
--- a/src/add-ons/accelerants/nvidia/engine/nv_acc_dma.c
+++ b/src/add-ons/accelerants/nvidia/engine/nv_acc_dma.c
@@ -432,10 +432,10 @@ status_t nv_acc_init_dma()
 
 			ACCW(NV10_TIL3PT, 0x2ffff800);
 			ACCW(NV10_TIL3ST, 0x00006000);
+			/* enable some DMA channel (split-up source and dest now or so) */
 			ACCW(NV4X_WHAT1, 0x01000000);
-			ACCW(NV4X_WHAT0, 0x00001200);//1200 DMA instance????(test shutoff in PIO mod)
-//test if trouble:
-//			ACCW(NV4X_WHAT0, 0x00001140);
+			/* DMA instance = $1140 */
+			ACCW(NV4X_WHAT0, 0x00001140);
 			break;
 		case NV30A:
 /*