It's hard to find a computer without a sound card these days. However, the built-in speaker connected to the motherboard, you still need to remember to join it. It will make it possible to hear the BIOS error codes, as well as the beeps of some old programs.
Instructions
Step 1
Make sure the computer is completely de-energized. If it is running, shut down all applications and the operating system correctly before disconnecting the power cord from the power supply.
Step 2
Remove the power supply so it does not obstruct the motherboard. Beware of dropping it onto the processor fan.
Step 3
Examine the motherboard for a built-in speaker. It is made in a round black case with a diameter less than a penny coin and a little less than a centimeter in height. In the middle, it has a hole with a diameter of about three millimeters through which a metal membrane is visible.
Step 4
If the speaker is not on the motherboard, proceed to connect the speaker included with the case. Locate the cable that comes out of the front panel and has a wide four-pin connector. Its extreme contacts are involved, but the middle ones are not, while there are usually no metal parts in the corresponding holes. Sometimes there are two separate single-pin connectors instead.
Step 5
Locate the multi-pin connector on the motherboard that holds the rest of the cables from the front of the chassis. Find the pin assignment decryption next to this connector. Connect the speaker connector to the pins marked as SPK, SP, SPKR, SPEAKER, etc. If the speaker has two separate 1-pin connectors, connect them as if it were a single 4-pin connector with the middle terminals unused.
Step 6
Replace the power supply. Shut down your computer and turn it on. Even at the BIOS boot stage, you will hear one short beep - a signal that the self-test was successful.
Step 7
Start an application on the computer that uses the system speaker. It is best to use real DOS for this, and not its emulator, so that the sound is not distorted. Perhaps you didn’t even know before that this or that old program was capable of sounding at all.
