diff --git a/src/machine/m_at_386dx_486.c b/src/machine/m_at_386dx_486.c
index b89f77b18..ea7e00ddc 100644
--- a/src/machine/m_at_386dx_486.c
+++ b/src/machine/m_at_386dx_486.c
@@ -992,7 +992,7 @@ machine_at_sis_85c496_common_init(UNUSED(const machine_t *model))
 {
     device_add(&ide_pci_2ch_device);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x05, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
 
     pci_set_irq_routing(PCI_INTA, PCI_IRQ_DISABLED);
diff --git a/src/machine/m_at_slot1.c b/src/machine/m_at_slot1.c
index a3c25d12b..c199be2e9 100644
--- a/src/machine/m_at_slot1.c
+++ b/src/machine/m_at_slot1.c
@@ -821,7 +821,7 @@ machine_at_p6f99_init(const machine_t *model)
 
     machine_at_common_init_ex(model, 2);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x09, PCI_CARD_NORMAL,      1, 2, 3, 4);
@@ -854,7 +854,7 @@ machine_at_m747_init(const machine_t *model)
 
     machine_at_common_init_ex(model, 2);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x09, PCI_CARD_NORMAL,      1, 2, 3, 4);
diff --git a/src/machine/m_at_socket4.c b/src/machine/m_at_socket4.c
index 02018949c..f7aad92ec 100644
--- a/src/machine/m_at_socket4.c
+++ b/src/machine/m_at_socket4.c
@@ -65,7 +65,7 @@ machine_at_sp4_common_init(const machine_t *model)
 {
     machine_at_common_init(model);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     /* Excluded: 02, 03, 04, 05, 06, 07, 08, 09, 0A, 0B, 0C, 0D, 0E, 0F, 10, 11, 12, 13, 14 */
@@ -422,7 +422,7 @@ machine_at_excaliburpci2_init(const machine_t *model)
     machine_at_common_init_ex(model, 2);
     device_add(&ami_1994_nvr_device);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x08, PCI_CARD_IDE,         0, 0, 0, 0);
diff --git a/src/machine/m_at_socket5.c b/src/machine/m_at_socket5.c
index 916f8490b..773f8d980 100644
--- a/src/machine/m_at_socket5.c
+++ b/src/machine/m_at_socket5.c
@@ -465,7 +465,7 @@ machine_at_sq588_init(const machine_t *model)
 
     machine_at_common_init(model);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     /* Correct: 0D (01), 0F (02), 11 (03), 13 (04) */
@@ -496,7 +496,7 @@ machine_at_p54sps_init(const machine_t *model)
 
     machine_at_common_init(model);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x06, PCI_CARD_NORMAL, 1, 2, 3, 4);
@@ -526,7 +526,7 @@ machine_at_ms5109_init(const machine_t *model)
     machine_at_common_init_ex(model, 2);
     device_add(&ami_1994_nvr_device);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x07, PCI_CARD_IDE, 0, 0, 0, 0);
@@ -557,7 +557,7 @@ machine_at_torino_init(const machine_t *model)
     machine_at_common_init_ex(model, 2);
     device_add(&ami_1994_nvr_device);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x08, PCI_CARD_VIDEO, 0, 0, 0, 0);
diff --git a/src/machine/m_at_socket7.c b/src/machine/m_at_socket7.c
index ce21c6437..6ba7cb41d 100644
--- a/src/machine/m_at_socket7.c
+++ b/src/machine/m_at_socket7.c
@@ -1312,7 +1312,7 @@ machine_at_sp97xv_init(const machine_t *model)
 
     machine_at_common_init_ex(model, 2);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x0C, PCI_CARD_NORMAL,      1, 2, 3, 4);
@@ -1341,7 +1341,7 @@ machine_at_sq578_init(const machine_t *model)
 
     machine_at_common_init_ex(model, 2);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x0D, PCI_CARD_NORMAL,      3, 4, 1, 2);
@@ -1368,7 +1368,7 @@ machine_at_ms5172_init(const machine_t *model)
 
     machine_at_common_init_ex(model, 2);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x02, PCI_CARD_AGPBRIDGE,   0, 0, 0, 0);
diff --git a/src/machine/m_at_socket7_3v.c b/src/machine/m_at_socket7_3v.c
index 676f50fb1..fdf155894 100644
--- a/src/machine/m_at_socket7_3v.c
+++ b/src/machine/m_at_socket7_3v.c
@@ -872,7 +872,7 @@ machine_at_5sbm2_init(const machine_t *model)
 
     machine_at_common_init_ex(model, 2);
 
-    pci_init(PCI_CONFIG_TYPE_1);
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x0D, PCI_CARD_NORMAL,      1, 2, 3, 4);