Sound problem, no sound

[Furashu]

hi i recently was given a old but working computer but the sound does not work... i reformatted the whole thing and wiped it clean and i installed the real teak audio 97 drivers but it doesnt work... i have no sound what so ever im 100% sure my speakers work i pluged them into my cd player and it worked fine...
please help =/

my mother board..
Board: P4X266-8233
Bus Clock: 100 megahertz
BIOS: Award Software International, Inc. 6.00 PG 09/28/2001

these are the audio devices?
ATI WDM Rage Theater Audio (Microsoft)
ATI WDM Rage Theater Video (Microsoft)
ATI WDM Specialized MVD Codec (Microsoft)
ATI WDM Specialized PCD Codec (Microsoft)
ATI WDM TV Audio Crossbar (Microsoft)
ATI WDM TV Tuner (Microsoft)
MPU-401 Compatible MIDI Device
Realtek AC'97 Audio for VIA (R) Audio Controller
Standard Game Port

[ski]

Go into BIOS, and check for an option to enable/disable the onboard sound. If you find it, then make sure it's enabled.
If that does not work, or there's no onboard sound item, then the onboard audio adapter may be bad. See if installing a known working PCI sound card helps.