Did you enable SMART support in the bios? IIRC monitoring software requires this to monitor the tempratures.
Under Linux, you can use 'smartmontools' to monitor the hard drive(s). Here's a sample output from my desktop machine at home.
You can see it's reporting its temprature in that last table as 42C.Code:root@terror:/home/gking/iso# smartctl -a /dev/hdc smartctl version 5.34 [i686-pc-linux-gnu] Copyright (C) 2002-5 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF INFORMATION SECTION === Device Model: SAMSUNG SP6003H Serial Number: 0441J1FTB05960 Firmware Version: QV100-60 User Capacity: 60,060,155,904 bytes Device is: In smartctl database [for details use: -P show] ATA Version is: 6 ATA Standard is: ATA/ATAPI-6 T13 1410D revision 1 Local Time is: Mon Jul 3 16:20:25 2006 BST ==> WARNING: May need -F samsung or -F samsung2 enabled; see manual for details. SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x00) Offline data collection activity was never started. Auto Offline Data Collection: Disabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: (2700) seconds. Offline data collection capabilities: (0x1b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No Conveyance Self-test supported. No Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. No General Purpose Logging support. Short self-test routine recommended polling time: ( 1) minutes. Extended self-test routine recommended polling time: ( 45) minutes. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 051 Pre-fail Always - 3 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 48 5 Reallocated_Sector_Ct 0x0033 253 253 010 Pre-fail Always - 0 7 Seek_Error_Rate 0x000b 253 253 051 Pre-fail Always - 0 8 Seek_Time_Performance 0x0024 253 253 000 Old_age Offline - 0 9 Power_On_Hours 0x0032 097 097 000 Old_age Always - 2138573 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 35 194 Temperature_Celsius 0x0022 112 112 000 Old_age Always - 42 197 Current_Pending_Sector 0x0033 253 253 010 Pre-fail Always - 0 198 Offline_Uncorrectable 0x0031 253 253 010 Pre-fail Offline - 0 199 UDMA_CRC_Error_Count 0x000a 100 100 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x000b 100 100 051 Pre-fail Always - 0 201 Soft_Read_Error_Rate 0x000b 100 100 051 Pre-fail Always - 1 SMART Error Log Version: 1 No Errors Logged SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t] Device does not support Selective Self Tests/Logging