Advanced troubleshooting technique tutorial of how to possibly fix a PC that will not beep at boot
1,146WARNING - I will NOT be held responsible for any damages the methods shown in this video may cause to yours or someone else's computer, hardware, software, and/or data, including loss of use of such devices and/or loss of data and/or loss of profits from the resulting inability to use such devices and data. Any information or program you choose to put into use from this video is done AT YOUR OWN RISK. As a precaution, I recommend backing up any irrecoverable data before practicing any of the methods shown in this video.
This is the advanced troubleshooting technique video tutorial of how to possibly fix a PC that will that will not beep when booting the system; that will not display anything on screen, and that will essentially not progress into and past POST.
This video will try to troubleshoot and resolve this situation: although your fans may spin up, your PC will never properly boot and never progress past this stage. You cannot access or interact with your computer, and are otherwise stuck. Furthermore, the ON/OFF power button doesn't power down machine unless you hold the power button for a number of seconds. It is as if your PC is stuck in idle, sleep or hibernation mode.
This video will show you first and foremost how to clear the CMOS which will hopefully allow you to then access your BIOS.
Furthermore, if you find yourself in the situation where your computer powers on for a mere second or a couple of seconds, and then immediately powers off and will not power back on again (essentially the power feed to your PC does not remain stable) this can often be attributed to a short circuit. Skip ahead (fast forward) to 15:20 to find out how to solve this issue.
This video will also show you how to breadboard a PC, allowing you to test components on your motherboard that is outside of the case before even having to mount the hardware within the case. Skip ahead (fast forward) to 20:20 to find out how.
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Note that if you would rather begin by viewing BASIC troubleshooting techniques to try and fix this issue, first see:
http://youtu.be/4e73dtkGxiY
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If you find yourself in this situation (a PC that will turn on but will not beep and will not display anything on screen), try to Do what my video shows: disconnect the power cable, remove the CMOS battery, short the CMOS jumper pins for 9 seconds then return the jumper cap to its initial position (only if you can find these jumper pins; if not, skip this step), press your PC's chassis power button switch (to discharge any remaining power circulating in the system), leave the PC unplugged and in this state overnight, then the next day return the CMOS battery to its socket, power up the PC, and if no beep, then disconnect the power cable, press your PC's chassis power button switch (to discharge any remaining power circulating in the system), remove one component, power up the PC, and if no beep then repeat (each time unplugging the PC, pressing the power switch to discharge remaining power, removing a remaining component, and then powering up, and this until the PC beeps at boot).If it never beeps, even when you are down to just motherboard, power supply & CPU+fan, one of these remaining components may be bad
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If your computer powers on but for a mere second or two and then immediately powers down, It sounds like your motherboard is developing a short circuit due to contact with the metal casing. Most likely it has to do with the screws and metal mounting stands (supports) that your motherboard sits on. The cheapest way to fix this problem is to introduce cardboard washers between the screws and where they make contact to the motherboard, or you can buy plastic mounting supports at a computer shop.
Alternatively, to ensure that it is in fact the computer developing a short circuit due to contact with the metal casing, you can always Breadboard it: Skip ahead (fast forward) to 20:20 to find out how.
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AWARD MODULAR BIOS POST BEEP ERROR MESSAGE CODES:
One beep when displaying logo - no error during POST
Long beeps in an endless loop - no system RAM installed or detected
One long beep followed by three short beeps - video card not found or video card memory bad
High-frequency beeps when the system is working - the CPU is overheating and the system is running at a lower frequency
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Beep error codes differ from one BIOS manufacturer to the next. To discover what the beep error code is trying to telling you, discover the manufacturer of your BIOS (available in the motherboard's manual or on the motherboard's manufacturer's website {on the page for your specific motherboard model}) and then look up the frequency and interval of your beep error code on:
http://www.computerhope.com/beep.htm