"XP does detect an audio device. Any other ideas? It doesn't show up in the hardware in the control panel"
If XP does detect an audio device it should show something in the System Device Manager.
Usually a yellow exclimation mark on the offending item.
Have a look in add and remove programs, it will tell you if there is some sort of audio driver installed and a pointer to the sort of driver you will be looking for.
If there is then the driver are more than likely still on the system (unless it says it's installed but still asks your sound card disk then you will need the drivers).
WARNING TURN OF THE POWER AND MAKE SURE THAT THE PSU IS DISCHARGED BEFORE REMOVING,INSTERTING OR DOING ANY THING INSIDE THE COMPUTER, AND ENSURE THAT YOU ARE STATIC FREE BY TOUCTHING ANY METAL PART OF THE COMPUTER OR YOU CAN DESTORY YOU COMPUTER.
Now here's the worst when you cleaned the computer you may have damaged the card or knocked it just enough for it to become unseated in the expansion slot. Take it out and re-isert it.
While its out have a look to see what make and model it is, this will give you a better idea for the drivers.
"Do you think it's something to do with replacing the battery on the bios?"
If you have replace the CMOS battery then the BIOS settings will need to be up dated as the will reset to the default(or if the battery is flat, This will give a POST (boot) error every time saying that Checksum is incorrect.. Press F1 for setup (or words to that effect) you get this the once if you clear the CMOS or replace the battery).
Because you are using a expansion card for sound and you say there's a onboard sound chip.
Then you will have to enter the BIOS settings by holding down the setup key when the computer is first powered up, (usually) the delete key (ther are other keys depending on the BIOS MAKER F1,F2,CTRL+SHIFT+F12?.. etc you willl have to find the right one or combination).
WARNING DO NOT BE TEMPTED TO MESS WITH THE CPU CLOCK SPEEDS, MEMORY OR GPU SETTING UNLESS YOU KNOW WHAT YOU ARE DOING!
OR THE COMPUTER WILL NOT BOOT OR CAN BECOME UNSTABLE. IT IS A GOOD IDEA TO WRITE DOWN ANY SETTINGS BEFORE YOU CHANGE THEM!
When we have the bios setup screen, there should be a menu item that says something like "Intergrated Peripherals"(some where on the screen it will tell you how to navigate the setup menus). If we don't (there are different types of BIOS Setup Schemes) then enter each menu because you will be looking for something like OnBoard Sound,Onboard Audio or AC97, when found disable it, then press ESCAPE key repeatedly untill you are back at the First BIOS screen. Then select the SAVE AND EXIT menu item, answer yes, then the computer will reboot.
If by chance you do mess up, you can reset the CMOS/BIOS settings by moving a jumper located near the CMOS battery (if you have a motherboard manual it will tell you how to do this) one pin over for a second then returning it back as it was. WARNING DON'T DO THIS WITH THE POWER ON OR THE PSU STILL CHARGED OR LEAVE THE PIN IN THE CLEAR CMOS POSITION OR YOU WILL DESTROY YOUR COMPUTER. The safest way would be just to remove you battery (SEE FIRST WARNIG).
Now XP should only see the sound expansion card not the onboard sound.
If not shutdown, remove the sound card,reboot,then shutdown again, re-install the sound card in a different slot and power up. Windows should find the card if it still can't find the drivers and you found the drivers for your card on the net/cd etc, then remove and old drivers for your sound card in add and remove programs.
If there is still no joy then there is a problem with the card (and/or possibly a problem with the mother board)
If XP does detect an audio device it should show something in the System Device Manager.
Usually a yellow exclimation mark on the offending item.
Have a look in add and remove programs, it will tell you if there is some sort of audio driver installed and a pointer to the sort of driver you will be looking for.
If there is then the driver are more than likely still on the system (unless it says it's installed but still asks your sound card disk then you will need the drivers).
WARNING TURN OF THE POWER AND MAKE SURE THAT THE PSU IS DISCHARGED BEFORE REMOVING,INSTERTING OR DOING ANY THING INSIDE THE COMPUTER, AND ENSURE THAT YOU ARE STATIC FREE BY TOUCTHING ANY METAL PART OF THE COMPUTER OR YOU CAN DESTORY YOU COMPUTER.
Now here's the worst when you cleaned the computer you may have damaged the card or knocked it just enough for it to become unseated in the expansion slot. Take it out and re-isert it.
While its out have a look to see what make and model it is, this will give you a better idea for the drivers.
"Do you think it's something to do with replacing the battery on the bios?"
If you have replace the CMOS battery then the BIOS settings will need to be up dated as the will reset to the default(or if the battery is flat, This will give a POST (boot) error every time saying that Checksum is incorrect.. Press F1 for setup (or words to that effect) you get this the once if you clear the CMOS or replace the battery).
Because you are using a expansion card for sound and you say there's a onboard sound chip.
Then you will have to enter the BIOS settings by holding down the setup key when the computer is first powered up, (usually) the delete key (ther are other keys depending on the BIOS MAKER F1,F2,CTRL+SHIFT+F12?.. etc you willl have to find the right one or combination).
WARNING DO NOT BE TEMPTED TO MESS WITH THE CPU CLOCK SPEEDS, MEMORY OR GPU SETTING UNLESS YOU KNOW WHAT YOU ARE DOING!
OR THE COMPUTER WILL NOT BOOT OR CAN BECOME UNSTABLE. IT IS A GOOD IDEA TO WRITE DOWN ANY SETTINGS BEFORE YOU CHANGE THEM!
When we have the bios setup screen, there should be a menu item that says something like "Intergrated Peripherals"(some where on the screen it will tell you how to navigate the setup menus). If we don't (there are different types of BIOS Setup Schemes) then enter each menu because you will be looking for something like OnBoard Sound,Onboard Audio or AC97, when found disable it, then press ESCAPE key repeatedly untill you are back at the First BIOS screen. Then select the SAVE AND EXIT menu item, answer yes, then the computer will reboot.
If by chance you do mess up, you can reset the CMOS/BIOS settings by moving a jumper located near the CMOS battery (if you have a motherboard manual it will tell you how to do this) one pin over for a second then returning it back as it was. WARNING DON'T DO THIS WITH THE POWER ON OR THE PSU STILL CHARGED OR LEAVE THE PIN IN THE CLEAR CMOS POSITION OR YOU WILL DESTROY YOUR COMPUTER. The safest way would be just to remove you battery (SEE FIRST WARNIG).
Now XP should only see the sound expansion card not the onboard sound.
If not shutdown, remove the sound card,reboot,then shutdown again, re-install the sound card in a different slot and power up. Windows should find the card if it still can't find the drivers and you found the drivers for your card on the net/cd etc, then remove and old drivers for your sound card in add and remove programs.
If there is still no joy then there is a problem with the card (and/or possibly a problem with the mother board)