diff --git a/extensions/arc/notebooks/arcDeployment/deploy.postgres.existing.arc.ipynb b/extensions/arc/notebooks/arcDeployment/deploy.postgres.existing.arc.ipynb
index dcfd42dfaa..a1f7544420 100644
--- a/extensions/arc/notebooks/arcDeployment/deploy.postgres.existing.arc.ipynb
+++ b/extensions/arc/notebooks/arcDeployment/deploy.postgres.existing.arc.ipynb
@@ -208,8 +208,8 @@
                 "volume_size_backups_option = f' -vsb {server_group_volume_size_backups}Gi' if server_group_volume_size_backups else \"\"\n",
                 "cores_request_option = f' -cr \"{server_group_cores_request}\"' if server_group_cores_request else \"\"\n",
                 "cores_limit_option = f' -cl \"{server_group_cores_limit}\"' if server_group_cores_limit else \"\"\n",
-                "memory_request_option = f' -mr \"{server_group_memory_request}Mi\"' if server_group_memory_request else \"\"\n",
-                "memory_limit_option = f' -ml \"{server_group_memory_limit}Mi\"' if server_group_memory_limit else \"\"\n",
+                "memory_request_option = f' -mr \"{server_group_memory_request}Gi\"' if server_group_memory_request else \"\"\n",
+                "memory_limit_option = f' -ml \"{server_group_memory_limit}Gi\"' if server_group_memory_limit else \"\"\n",
                 "\n",
                 "os.environ[\"AZDATA_PASSWORD\"] = postgres_password\n",
                 "cmd = f'azdata arc postgres server create -n {server_group_name} -scd {postgres_storage_class_data} -scl {postgres_storage_class_logs} -scb {postgres_storage_class_backups}{workers_option}{port_option}{engine_version_option}{extensions_option}{volume_size_data_option}{volume_size_logs_option}{volume_size_backups_option}{cores_request_option}{cores_limit_option}{memory_request_option}{memory_limit_option}'\n",
diff --git a/extensions/arc/package.json b/extensions/arc/package.json
index 8a4f2f5ee9..43f467efb3 100644
--- a/extensions/arc/package.json
+++ b/extensions/arc/package.json
@@ -844,13 +844,13 @@
                           "label": "%arc.postgres.server.group.memory.request%",
                           "variableName": "AZDATA_NB_VAR_POSTGRES_SERVER_GROUP_MEMORY_REQUEST",
                           "type": "number",
-                          "min": 256
+                          "min": 0.25
                         },
                         {
                           "label": "%arc.postgres.server.group.memory.limit%",
                           "variableName": "AZDATA_NB_VAR_POSTGRES_SERVER_GROUP_MEMORY_LIMIT",
                           "type": "number",
-                          "min": 256
+                          "min": 0.25
                         }
                       ]
                     }
diff --git a/extensions/arc/package.nls.json b/extensions/arc/package.nls.json
index 5916e1cd1d..dd159cb7b8 100644
--- a/extensions/arc/package.nls.json
+++ b/extensions/arc/package.nls.json
@@ -123,8 +123,8 @@
 	"arc.postgres.server.group.cores.request": "Min CPU cores (per node) to reserve",
 	"arc.postgres.server.group.cores.limit": "Max CPU cores (per node) to allow",
 	"arc.postgres.server.group.cores.description": "Fractional cores are supported",
-	"arc.postgres.server.group.memory.request": "Min memory MB (per node) to reserve",
-	"arc.postgres.server.group.memory.limit": "Max memory MB (per node) to allow",
+	"arc.postgres.server.group.memory.request": "Min memory GB (per node) to reserve",
+	"arc.postgres.server.group.memory.limit": "Max memory GB (per node) to allow",
 	"arc.agreement": "I accept {0} and {1}.",
 	"arc.agreement.sql.terms.conditions":"Azure SQL managed instance - Azure Arc terms and conditions",
 	"arc.agreement.postgres.terms.conditions":"Azure Arc enabled PostgreSQL Hyperscale terms and conditions",