Will Not Display Image

[Zallomallo]

Solved​

My videocard has recently been having issues, where it would make a loud grinding sound, before my computer would crash. I ordered a new videocard, and decided to remove this videocard, and instead plug my video cable into an older nVidia card I had lying around. (8400 GTS I believe) However, this would not display an image, so I removed this videocard, and plugged it straight into the motherboard. This also did not work. In fact, several issues came into being. First off, when I boot my computer the CPU fan usually roars into life, very loudly. Over a couple of minutes after booting, it slows down to operating RPM. My computer no longer does this, the fan just stays at a very fast RPM (this may seem trivial, but my instinct is telling me it's not). Secondly, my power button no longer works correctly. Although it will turn on correctly, there seems to be no way to turn it off. I press it, it doesn't shut down. I hold it for 10 seconds, it still does not shut down. I have to press the switch on the back of the PSU to turn it off.

Specifications:
Intel Core2 Q8200 @ 2.33GHz,
6GB of DDR2 RAM,
Asus P5QL-VM EPU, and
Seasonic 500W PSU.

Thanks a lot for any and all help!

Edit: I also tried removing every single peripheral.

Edit 2: I have a new videocard coming, but I fear this problem is deeper. I have tried both DVI and VGA cables.

Edit 3: Maximum PC Thread

 

[Bubbaleone]

It would be helpful to know whether this is an OEM or custom-built PC. Asus lists twelve socket 775 mobos with six different chipsets. You need to look for the model number printed on the motherboard, and post that. :thumbsup:

 

[Zallomallo]

Done, I looked it up!

 

[Bubbaleone]

Done, I looked it up!

Turn off the PC, unplug the power cord, and wait 60 seconds. Unplug the front panel connector. Just to the right of the front panel connector is the CLRTC. Move the jumper from pins 1-2 onto pins 2-3 for 30 seconds, then move the jumper back to pins 1-2, and reconnect the front panel connector. Plug the power cord back in, and boot the PC to test if you've now got video signal, and whether the power button function is restored. If you get video, enter BIOS and set onboard VGA as default until you get your new card.

If you don't have one, go to the Asus website and download the P5QL-VM EPU user’s manual(English).


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[Zallomallo]

I did the above, and got no video. I looked up clearing the CMOS in the manual, and it's only additional suggestion was to remove the battery before moving the jumpers, so I removed the battery, moved the jumpers, replaced the batteries, and moved the jumpers back. Unfortunately, that did not seem to help. The only difference was the power button worked correctly, but only the first time.

 

[Bubbaleone]

The power button failing, after working once, suggests there may be a problem with your power supply. Unplug and reseat every connector then retest. If no change, test with a different power supply.

 

[Zallomallo]

Alright, I took the following steps:

1. Removed all power connectors.
2. Cleared CMOS (I think I did it correctly)
3. Reconnected power connectors.

And I finally got a video signal. However, one very odd thing, I didn't have the power connector for the CPU plugged in. Could this have possibly been a reason for failing? And how in the world did it work without being connected?

Thank you so much Bubbaleone!

 

[piasabird]

Well if you had some connector shorting the pins for either the power connector or the reset switch that could have turned the computer on. The power switch works like a doorbell. You press it once and it turns the power supply on. Sometimes something is plugged in wrong. For instance if you took a little screw driver and touched the two pins for the power button, the computer should turn on.

The sound you heard could have been something like a malfuntioning fan or maybe a hard drive. This could be the sign of a loose connection to the power or a bad power supply. Does not sound good.

 

[denis280]

I didn't have the power connector for the CPU plugged in. Could this have possibly been a reason for failing?

Yeap!