List of computer problem that can be fixed with just re-seating the hardware:
1. RAM error. CPU box making RAM error sound like, long repeating beeps.
Symptoms:
a. CPU box is making RAM error beep sound.
Solution:
a.Turn off the computer.
b.Unplug power cord.
c.Open CPU side panel.
d.Locate RAM.
e.Remove RAM.
f.Reinstall RAM.
g.Close CPU box.
h.Start computer and hopefully error is fixed.
2. Video card error (GPU).
Symptoms:
a. CPU box is making video card error beep sound. 1 long then 2 short beeps.
b. No video display, monitor shows no signal message.
Solution:
a.Turn off the computer.
b.Unplug power cord.
c.Open CPU side panel.
d.Locate video card.
e.Remove video card. Make sure that all screws and notches are properly detached/removed.
f.Reinstall video card. Make sure that all screws and notches are properly connected.
g.Close CPU box.
h.Start computer and hopefully error is fixed.
3. Primary hard drive missing error.
Symptoms:
a.Computer will POST but stop because there is no primary hard drive where operating system is installed.
Solution:
a.Turn off the computer.
b.Unplug power cord.
c.Open CPU side panel.
d.Locate hard drive.
e.Remove IDE/SATA cable.
f.Re-attached IDE/SATA cable.
g.Remove its power supply.
h.Re-attach its power supply.
i.Close CPU box.
j.Start computer and hopefully error is fixed.
4. CPU error.
Symptoms:
a. CPU box is making continuous hi-lo beeps
b. No display
c. No POST.
Problem causes:
a.CPU is overheating.
b.CPU fan is clogged by dust.
c.CPU fan has stopped or defective.
Solution:
a.Turn off the computer.
b.Unplug power cord.
c.Open CPU side panel.
d.Locate CPU.
e.Remove CPU heat sink and fan. Inspect the CPU for any sign of burnt.
f.Clean CPU heat sink. Make sure to remove all dusts sticking to the heat sink.
g.Clean CPU fan.
h.Re-seat or reinstall the heat sink
Additional Information for troubleshooting computer beep codes:
1. Start the computer to hear the error beep code.
2. Listen to the error beep code carefully. Error codes are mostly a combination of short and long beep code. Make sure that you have it correctly to be sure youre troubleshooting properly. You may need to restart the computer several times to make sure of the error code.
3. Remember the error code or write it down for easy reference.
4. Go to the internet and search for the error code. Error codes differ from BIOS maker. It is also very important to know your BIOS manufacturer, this is not the same as the motherboard maker.