diff --git a/src/radeon_accel.c b/src/radeon_accel.c
index 9fecce6..2b9b2e0 100644
--- a/src/radeon_accel.c
+++ b/src/radeon_accel.c
@@ -374,7 +374,7 @@ void RADEONEngineInit(ScrnInfoPtr pScrn)
 	(info->ChipFamily == CHIP_FAMILY_R420)  ||
 	(info->ChipFamily == CHIP_FAMILY_RS690) ||
 	(info->ChipFamily == CHIP_FAMILY_RS740) ||
-	(info->ChipFamily == CHIP_FAMILY_RS400) ||
+	/*(info->ChipFamily == CHIP_FAMILY_RS400) ||*/
 	IS_R500_3D) {
 	uint32_t gb_pipe_sel = INREG(R400_GB_PIPE_SELECT);
 	if (info->num_gb_pipes == 0) {