Cisco 1760 router will not recognize wic1-dsu-t1-v2 card in slots 3 or 4

Question

My 1760 router will not recognize a wic1-dsu-t1-v2 card in slots 3 or 4. They only work in slots 1 & 2. Never saw this before where the same card would not work in different slots.
Need assistance.
Thanks,
Ron
Router#show version
Cisco Internetwork Operating System Software
IOS (tm) C1700 Software (C1700-IPBASE-M), Version 12.3(6c), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Tue 20-Jul-04 07:00 by kellythw
Image text-base: 0x80008120, data-base: 0x80C74650
ROM: System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)
Router uptime is 20 minutes
System returned to ROM by power-on
System image file is "flash:c1700-ipbase-mz.123-6c.bin"
cisco 1760 (MPC860P) processor (revision 0x500) with 55598K/9938K bytes of memory.
Processor board ID FOC0849230K (3846615071), with hardware revision 0000
MPC860P processor: part number 5, mask 2
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
WIC T1-DSU
32K bytes of non-volatile configuration memory.
32768K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
Router#show flash
System flash directory:
File  Length   Name/status
  1   7517112 c1700-ipbase-mz.123-6c.bin 
[7517176 bytes used, 25775112 available, 33292288 total]
32768K bytes of processor board System flash (Read/Write)
Router#show diag
Slot 0:
        C1760 1FE VE 4SLOT DV Mainboard Port adapter, 3 ports
        Port adapter is analyzed
        Port adapter insertion time unknown
        EEPROM contents at hardware discovery:
        Hardware Revision        : 5.0
        PCB Serial Number        : FOC0849230K
        Part Number              : 73-7167-05
        Board Revision           : B0
        Fab Version              : 04
        Product (FRU) Number     : CISCO1760
        EEPROM format version 4
        EEPROM contents (hex):
          0x00: 04 FF 40 03 16 41 05 00 C1 8B 46 4F 43 30 38 34
          0x10: 39 32 33 30 4B 82 49 1B FF 05 42 42 30 02 04 FF
          0x20: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x30: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x40: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
        WIC/VIC Slot 0:
        FT1 4351
        Daughter card-Version 4 TLV Cookie Format
        Hardware Revision        : 1.1
        PCB Serial Number        : FOC09053XP1
        Part Number              : 73-8346-04
        Board Revision           : A0
        RMA Test History         : 00
        RMA Number               : 0-0-0-0
        RMA History              : 00
        Deviation Number         : 0-0
        Product (FRU) Number     : WIC-1DSU-T1-V2     
        Top Assy. Part Number    : 800-22193-02
        CLEI Code                : IP4I380GAB
        WIC/VIC Slot 1:
        FT1 4351
        Daughter card-Version 4 TLV Cookie Format
        Hardware Revision        : 1.2
        PCB Serial Number        : FOC10073JND
        Part Number              : 73-8346-05
        Board Revision           : A0
        RMA Test History         : 00
        RMA Number               : 0-0-0-0
        RMA History              : 00
        Deviation Number         : 0-0
        Product (FRU) Number     : WIC-1DSU-T1-V2     
        Top Assy. Part Number    : 800-22193-03
        CLEI Code                : IPUIAPRRAA

Answer 1

Hi Ron,
Slots 3 & 4 are for VICs only.
Have a look at the Location/ Function table here:
http://www.cisco.com/en/US/products/hw/routers/ps221/products_tech_note09186a00800c3399.shtml
cheers,
Seb.