[CentOS] trying to get lm_sensorts to work

hi all,

I am trying to get lm_sensors to work.

did the yum install lm_sensors
service lm_sensors start

sensor -s
and it says no sensors found.

did lsmod | grep it87 and
it87                   57061  0
hwmon_vid              35905  1 it87
hwmon                  36553  1 it87
i2c_isa                39105  1 it87
i2c_core               56129  5 it87,i2c_isa,i2c_dev,i2c_ec,i2c_piix4

Seems like modules are loaded....
Is the some final trick to getting it to work?  centos 5, 
2.6.18-164.9.1.el5 #1 SMP Tue Dec 15 20:57:57 EST 2009 x86_64 x86_64 
x86_64 GNU/Linux

Thanks,

jerry

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lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge 
Alternate
00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge 
(int gfx)
00:0a.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge 
(PCIE port 5)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA 
Controller [AHCI mode]
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 
Controller
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 
Controller
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3c)
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 
Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, 
Athlon64, Sempron] HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, 
Athlon64, Sempron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, 
Athlon64, Sempron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, 
Athlon64, Sempron] Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] K10 [Opteron, 
Athlon64, Sempron] Link Control
01:05.0 VGA compatible controller: ATI Technologies Inc Unknown device 9710
01:05.1 Audio device: ATI Technologies Inc Unknown device 970f
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
03:06.0 Ethernet controller: Digium, Inc. Wildcard TDM800P 8-port analog 
card (rev 11)
03:0e.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 
IEEE-1394a-2000 Controller (PHY/Link)