To install the sound correctly, you must know which motherboard you have:

If you do not know which motherboard you have, unplug the keyboard from the back of the computer (If you have a wireless keyboard, Unplug the wireless receiver) and then restart the computer. When the computer restarts, it will stop when it detects no keyboard, the third line from the top should display the motherboard information.

• L4S5MG3+, L4S5MG/651+ or L4S5MG/GL
• P4VMM
• P4VMM2
• M925L