diff --git a/server/cros/network/attenuator_hosts.py b/server/cros/network/attenuator_hosts.py
index 876d63b..cf70d54 100644
--- a/server/cros/network/attenuator_hosts.py
+++ b/server/cros/network/attenuator_hosts.py
@@ -20,36 +20,96 @@
                 3: {2437: 57, 5220: 57, 5765: 59}},
         # Row 3 rack 8 is OTA grover setups
         'chromeos15-row3-rack8-host1-attenuator': {
-                0: {2437: 0, 5220: 0, 5765: 0},
-                1: {2437: 0, 5220: 0, 5765: 0},
-                2: {2437: 0, 5220: 0, 5765: 0},
-                3: {2437: 0, 5220: 0, 5765: 0}},
+                0: {2437: 28, 5220: 32, 5765: 34},
+                1: {2437: 32, 5220: 31, 5765: 33},
+                2: {2437: 28, 5220: 32, 5765: 34},
+                3: {2437: 31, 5220: 31, 5765: 32}},
         'chromeos15-row3-rack8-host2-attenuator': {
-                0: {2437: 0, 5220: 0, 5765: 0},
-                1: {2437: 0, 5220: 0, 5765: 0},
-                2: {2437: 0, 5220: 0, 5765: 0},
-                3: {2437: 0, 5220: 0, 5765: 0}},
+                0: {2437: 28, 5220: 32, 5765: 34},
+                1: {2437: 31, 5220: 30, 5765: 32},
+                2: {2437: 27, 5220: 31, 5765: 33},
+                3: {2437: 31, 5220: 30, 5765: 32}},
         'chromeos15-row3-rack8-host3-attenuator': {
-                0: {2437: 0, 5220: 0, 5765: 0},
-                1: {2437: 0, 5220: 0, 5765: 0},
-                2: {2437: 0, 5220: 0, 5765: 0},
-                3: {2437: 0, 5220: 0, 5765: 0}},
+                0: {2437: 27, 5220: 31, 5765: 32},
+                1: {2437: 31, 5220: 30, 5765: 31},
+                2: {2437: 27, 5220: 31, 5765: 32},
+                3: {2437: 31, 5220: 30, 5765: 31}},
         'chromeos15-row3-rack8-host4-attenuator': {
                 0: {2437: 28, 5220: 33, 5765: 34},
                 1: {2437: 32, 5220: 31, 5765: 32},
                 2: {2437: 28, 5220: 33, 5765: 34},
                 3: {2437: 31, 5220: 31, 5765: 32}},
         'chromeos15-row3-rack8-host5-attenuator': {
-                0: {2437: 0, 5220: 0, 5765: 0},
-                1: {2437: 0, 5220: 0, 5765: 0},
-                2: {2437: 0, 5220: 0, 5765: 0},
-                3: {2437: 0, 5220: 0, 5765: 0}},
+                0: {2437: 27, 5220: 31, 5765: 33},
+                1: {2437: 31, 5220: 30, 5765: 31},
+                2: {2437: 27, 5220: 31, 5765: 33},
+                3: {2437: 31, 5220: 29, 5765: 31}},
         'chromeos15-row3-rack8-host6-attenuator': {
-                0: {2437: 0, 5220: 0, 5765: 0},
-                1: {2437: 0, 5220: 0, 5765: 0},
-                2: {2437: 0, 5220: 0, 5765: 0},
-                3: {2437: 0, 5220: 0, 5765: 0}},
+                0: {2437: 28, 5220: 32, 5765: 34},
+                1: {2437: 31, 5220: 30, 5765: 32},
+                2: {2437: 28, 5220: 32, 5765: 35},
+                3: {2437: 31, 5220: 31, 5765: 32}},
         # Row 3 racks 9 to 14 are conductive grover setups
+        'chromeos15-row3-rack9-host1-attenuator': {
+                0: {2437: 53, 5220: 60, 5765: 59},
+                1: {2437: 57, 5220: 57, 5765: 58},
+                2: {2437: 53, 5220: 59, 5765: 60},
+                3: {2437: 57, 5220: 57, 5765: 60}},
+        'chromeos15-row3-rack9-host2-attenuator': {
+                0: {2437: 53, 5220: 59, 5765: 59},
+                1: {2437: 57, 5220: 58, 5765: 60},
+                2: {2437: 53, 5220: 58, 5765: 58},
+                3: {2437: 57, 5220: 58, 5765: 61}},
+        'chromeos15-row3-rack9-host3-attenuator': {
+                0: {2437: 53, 5220: 59, 5765: 59},
+                1: {2437: 57, 5220: 58, 5765: 59},
+                2: {2437: 53, 5220: 58, 5765: 59},
+                3: {2437: 57, 5220: 58, 5765: 60}},
+        'chromeos15-row3-rack9-host4-attenuator': {
+                0: {2437: 53, 5220: 59, 5765: 59},
+                1: {2437: 57, 5220: 58, 5765: 60},
+                2: {2437: 53, 5220: 58, 5765: 59},
+                3: {2437: 57, 5220: 57, 5765: 60}},
+        'chromeos15-row3-rack9-host5-attenuator': {
+                0: {2437: 53, 5220: 59, 5765: 59},
+                1: {2437: 57, 5220: 58, 5765: 59},
+                2: {2437: 53, 5220: 58, 5765: 60},
+                3: {2437: 57, 5220: 58, 5765: 60}},
+        'chromeos15-row3-rack9-host6-attenuator': {
+                0: {2437: 53, 5220: 59, 5765: 59},
+                1: {2437: 57, 5220: 57, 5765: 60},
+                2: {2437: 53, 5220: 59, 5765: 60},
+                3: {2437: 57, 5220: 58, 5765: 58}},
+        'chromeos15-row3-rack10-host1-attenuator': {
+                0: {2437: 52, 5220: 55, 5765: 56},
+                1: {2437: 55, 5220: 53, 5765: 57},
+                2: {2437: 52, 5220: 55, 5765: 57},
+                3: {2437: 55, 5220: 53, 5765: 57}},
+        'chromeos15-row3-rack10-host2-attenuator': {
+                0: {2437: 52, 5220: 56, 5765: 58},
+                1: {2437: 55, 5220: 54, 5765: 58},
+                2: {2437: 52, 5220: 56, 5765: 58},
+                3: {2437: 55, 5220: 54, 5765: 57}},
+        'chromeos15-row3-rack10-host3-attenuator': {
+                0: {2437: 52, 5220: 55, 5765: 60},
+                1: {2437: 55, 5220: 54, 5765: 59},
+                2: {2437: 52, 5220: 55, 5765: 61},
+                3: {2437: 55, 5220: 53, 5765: 59}},
+        'chromeos15-row3-rack10-host4-attenuator': {
+                0: {2437: 51, 5220: 55, 5765: 59},
+                1: {2437: 55, 5220: 53, 5765: 58},
+                2: {2437: 51, 5220: 54, 5765: 59},
+                3: {2437: 55, 5220: 53, 5765: 58}},
+        'chromeos15-row3-rack10-host5-attenuator': {
+                0: {2437: 51, 5220: 55, 5765: 60},
+                1: {2437: 55, 5220: 53, 5765: 58},
+                2: {2437: 51, 5220: 55, 5765: 60},
+                3: {2437: 55, 5220: 53, 5765: 58}},
+        'chromeos15-row3-rack10-host6-attenuator': {
+                0: {2437: 52, 5220: 55, 5765: 57},
+                1: {2437: 55, 5220: 54, 5765: 59},
+                2: {2437: 52, 5220: 55, 5765: 57},
+                3: {2437: 55, 5220: 54, 5765: 57}},
         'chromeos15-row3-rack11-host1-attenuator': {
                 0: {2437: 53, 5220: 58, 5765: 57},
                 1: {2437: 56, 5220: 56, 5765: 58},