diff --git a/packages/platforms/delta/x86-64/x86-64-delta-agc7646slv1b/platform-config/r0/src/python/x86_64_delta_agc7646slv1b_r0/__init__.py b/packages/platforms/delta/x86-64/x86-64-delta-agc7646slv1b/platform-config/r0/src/python/x86_64_delta_agc7646slv1b_r0/__init__.py
index 88703d35..f0482f65 100755
--- a/packages/platforms/delta/x86-64/x86-64-delta-agc7646slv1b/platform-config/r0/src/python/x86_64_delta_agc7646slv1b_r0/__init__.py
+++ b/packages/platforms/delta/x86-64/x86-64-delta-agc7646slv1b/platform-config/r0/src/python/x86_64_delta_agc7646slv1b_r0/__init__.py
@@ -3,13 +3,11 @@ from onl.platform.delta import *
 import os.path
 import subprocess
 
-class OnlPlatform_x86_64_delta_agc7646slv1b_r0(OnlPlatformDelta,
-                                              OnlPlatformPortConfig_32x100):
+class OnlPlatform_x86_64_delta_agc7646slv1b_r0(OnlPlatformDelta, OnlPlatformPortConfig_46x10_6x100):
     PLATFORM='x86-64-delta-agc7646slv1b-r0'
     MODEL="AGC7646SLV1B"
     SYS_OBJECT_ID=".7648.1"
 
-
     def baseconfig(self):
         #Check BMC monitor status
         bmc_mon_status = subprocess.check_output('ipmitool raw 0x38 0x1a 0x00', shell=True)
@@ -21,9 +19,6 @@ class OnlPlatform_x86_64_delta_agc7646slv1b_r0(OnlPlatformDelta,
         os.system("echo 1 > /sys/bus/i2c/devices/i2c-0/firmware_node/physical_node/remove")
         os.system("echo 1 > /sys/bus/pci/rescan")
 
-        #Insert gpio_pca953x module
-        os.system('modprobe gpio_pca953x')
-
         #Insert tmp401(tmp431/tmp432) module
         os.system('modprobe tmp401')
 
@@ -39,12 +34,6 @@ class OnlPlatform_x86_64_delta_agc7646slv1b_r0(OnlPlatformDelta,
         #Insert qsfp mosule
         self.insmod('optoe')
 
-        #Fantray present(fan1:499, fan2:498, fan3:497, fan4:496)
-        os.system("echo 496 > /sys/class/gpio/export")
-        os.system("echo 497 > /sys/class/gpio/export")
-        os.system("echo 498 > /sys/class/gpio/export")
-        os.system("echo 499 > /sys/class/gpio/export")
-
         #Restore BMC Monitor status
         if bmc_mon_status == ' 00\n':
             os.system("ipmitool raw 0x38 0x0a 0")