PC can't start, Monitor blank can't show BIOS setting

I always start with the power supply. Your power supply may not be producing all the power your motherboard is requesting, even though the light on the back is on. If you dont have a power supply tester, then you can try removing your power supply and trying a known working supply in it, making sure you have the right connectors on it for your motherboard..

I looked at a pic of your motherboard Asus A8n-vm and I dont see an orange (or any) button to push. Was that to reset your bios? If so, unplug the system from the wall, and carefully remove the battery from the motherboard. While it is out, push the power button on the front of the computer a few times. The computer wont start up, as you have it unplugged, its just to drain the motherboard of power to reset the bios. Then reinstall the battery, making sure it goes in the same as it came out (- is usually down and + is up). This should reset the bios info to the factory settings.But I still think it is a faulty power supply.

Most monitors will behave that way if they don't get a signal from the computer so there's nothing to display. A quick check of the monitor itself is to disconnect the signal cable from the computer and then turn the monitor on. Most monitors will display some kind of a message that there's no input and to check your cable connection. Then the power indicator changes color as the monitor blanks out.

You will probably find that your computer isn't starting up when you turn on the power. A common computer problem is that it will turn on when you press the power button, showing a power light and you'll hear the fans inside start running, but it never actually starts running. Then there's no video to the monitor and you see the trouble you described.

The monitor may still be bad. If everything seems to be starting normally and you hear the Windows startup sound through your speakers, but the display stays blank, try another monitor. If that one works, you'll need to have the bad one serviced or replace it. If the test monitor is also blank, the video circuitry in your computer has failed. If the video is built into the motherboard, you can install a plug-in video card as a replacement.

If the computer is turning on but never starts running, that can be a pain to figure out because several things can cause the trouble. The most frequent causes are a bad power supply or motherboard. Bad RAM or a defective drive or other device connected to the motherboard can also keep the board from starting up. The processor itself can fail, but that's not common. I start by removing everything except for the power supply, processor and fan to see if the motherboard is starting. If the motherboard doesn't give a "no memory" error (usually a long beep), you need a power supply or motherboard. Otherwise, the basic hardware is fine, and you can start replacing parts until the trouble comes back, and then you'll know what caused it.

Good luck, and thanks for using Fixya!

At first check the battery that's on you motherboard. The battery powers the bios on your motherboard. The bios detects you push the power button and turns on the pc. If the battery is dead the bios has no power, so it cannot detect you push the power button and will not turn on the pc. So replacing the battery will solve the problem. If the battery is not the problem, I think your motherboards bios is dead. Maybe it can be fixed but you'll have to send it back to the manufacturer I think.

The most common issue that could cause a lack of beep on startup is RAM related issues. Try removing and dusting the inside of the computer with compressed air. (Obviously, make sure that the computer is unplugged from the electric socket) As always, touch a metal surface before touching any of your inner computer components to dissapate static that can damage your components. After cleaning, remove the RAM and then reseat it in the motherboard RAM slots. You will have to apply slight pressure to reseat the RAM, so make sure that you push evenly on both sides of the RAM to prevent damage to the mother board. If this does not work, the problem may lie with one of the other components.

If there are not lights on the motherboard or case at all when you push the power button, the issue may be the PSU (Power Supply Unit)...

At first I thought your screen went black during the start up process. After seeing the bios screen. In which case I would've said it was a bios setting for the display. Then I realized that I think you mean that their is no display at all. When you push the power button. Only the monitor led light. So, it may be a problem with your RAM stick/s. You should make sure that they are properly seated in the mother board. If they are new, make sure they are compatible with that motherboard. If you can you should swap them out with known good ram sticks. You could also try installing a video card and see if you can get display to work through that one. Make sure your main power supply wire connector is pushed in all the way. Swap the power supply with a known good one if you can. If still can't get it to work you may want to take the motherboard out and inspect it for burns, cracks, and anything that doesn't look right. Maybe contact the manufacturer of the motherboard and ask them what you can check. hope this helps.

there might be problems with the ram you are using.. try your friend's ram in your computer. if it works without the problem you specified , go for replacing your ram. if the problem persists contact us back. thanks for using fix Ya!

try to reset BIOS by CMOS battery from motherboard and insert again...if not worked then..ur motherboard needs to be replaced...

Check the display cables , and if you have one test a different monitor on your computer.

If this is not a sceen problem, then it is an internal fault possibly the motherboard.

Try first leaving the PC power cord unplugged for ten, fifteen minutes and check if PC restarts afterwards.

Unplug computer, disconnect all usb/monitor/internet, open it, hold power button until green led on the inside on the motherboard turns off, pop out the BIOS battery (looks like a big watch battery and use a small flathead screwdriver to depress the spring lock on one side), plug in computer, hold power button for about 20 seconds (must reset BIOS), let up on power button, wait 10 seconds and push power button. The computer should turn on. Wait for it until activity seems stable (1 min. or so). Push powerbutton to shut off.

If this has worked you have proven that it's not the power supply (it turned on). If you purchased a non dell power supply, you might try this with the original one installed.

Go buy a new battery (CR2032 3 volt). Unplug computer, open it, hold power button until green led on the inside on the motherboard turns off, pop in new battery, plug in (you should notice the power button blinking amber again), hold power button until it stops blinking (about 20 sec....again must reset BIOS), wait 10 sec., push power button. the computer should turn on. Wait for it until activity seems stabe (1 min. or so). Push powerbutton to shut off.

Now, close case, plug in all usb/monitor/internet/etc. Power up computer. You'll get an internal floppy drive error. Push F2 (maybe F1) to get into the BIOS settings and go to "drives" and turn off the internal floppy. Save and exit. The computer should boot properly now.

This seems to be a big problem with the e510, my theory is that this one small battery is the root of most of these failures (as these computers usually fail after 1-2 years), not the power supply or the motherboard (heck, when you replace the motherboard it comes with a new one of these batteries...a several hundred dollar piece of hardware, with a $5 battery that will actually fix it).

Unplug computer, disconnect all usb/monitor/internet, open it, hold power button until green led on the inside on the motherboard turns off, pop out the BIOS battery (looks like a big watch battery and use a small flathead screwdriver to depress the spring lock on one side), plug in computer, hold power button for about 20 seconds (must reset BIOS or something), let up on power button, wait 10 seconds and push power button. The computer should turn on. Wait for it until activity seems stable (1 min. or so). Push powerbutton to shut off.

If this has worked you have proven that it's not the power supply (it turned on).

Go buy a new battery (CR2032 3 volt). Unplug computer, open it, hold power button until green led on the inside on the motherboard turns off, pop in new battery, plug in (you should notice the power button blinking amber again), hold power button until it stops blinking (about 20 sec....again must reset BIOS or something), wait 10 sec., push power button. the computer should turn on. Wait for it until activity seems stabe (1 min. or so). Push powerbutton to shut off.

Now, close case, plug in all usb/monitor/internet/etc. Power up computer. You'll get an internal floppy drive error. Push F2 (maybe F1) to get into the BIOS settings and go to "drives" and turn off the internal floppy. Save and exit. The computer should boot properly now.

This seems to be a big problem with the e510, my theory is that this one small battery is the root of most of these failures (as these computers usually fail after 1-2 years), not the power supply or the motherboard (heck, when you replace the motherboard it comes with a new one of these batteries...a several hundred dollar piece of hardware, with a $5 battery that will actually fix it).