No Input Signal...

[skullman80]

Hi,

I have been having a recent problem with my computer. I have a Abit vt7 mobo with a Pentium 4 3.02 ghz processor. 1 stick of DDR Ram 512mb. 80 gb SATA HDD, and 160GB serial IDE HDD, DVD Burner, Cd Burner, Floppy etc. I am running a Antec True Power 450 Watt Power supply.

The original vid card I had in there was a Geforce MX330 gard(I think) nothing fancy. I had recently upgraded to a Geforce 6600(Gigabyte Brand---has a Pipe Cooler instead of a Fan).

When I was using the old vid card I was having intermittent problems with the PC not getting vid signal. My PC is on 24/7 pretty much so I would only experience it when I would turn off the computer for a few hours. Usually a Cold boot would remedy the problem. I thought the issues was with the original ps I had which was an offbrand 300 watt powersupply. So I got the Antec 450 and also upgraded my vid card.

Things were working fine again, I then had to do a shutdown(problem does not happen on a restart) and when I went to power back on I'm getting no signal.\

I have swapped vid cards, reseated the processor, checked RAM, Checked all connections and still can get not a thing from any vid card.

Does anyone have any idea what could be causing this. I also double checked to make sure the board was not shorting and it is not.

Heck I even got a new monitor cause I thought my monitor went bad, but still no go.

Both the old card and new card are AGP, I have cleared the CMOS as well, and the PC does POST, just no vid display.

A very frustrating situation hoping someone here could possibly shed some light before I pull my hair out. I had to post this message on my fiance's pc.

Thanks!
Alan

 

[felixc]

Next step is the mobo. It holds lots of things that can cause your problem. I know it's a pain, but especially since your tried another PS, the local power supply to the CPU and detection/management stuff is handled by the mobo.

 

[garebo]

You could go into bios and either double check all your settings or set it to "minimum" or "original" or whatever it is called so that you set the bios back to original settings. Just in case some bios setting got changed without your knowledge and is causing the problem.

When you are having problems its always the best time to check the coin battery and make sure its around 3 volts. Im not saying the battery is the problem.

Disconnect\disable or remove all pci cards, optical driver, usb, and other items you dont need to boot up. This helps a lot with troubleshooting.




Good advice + great people = tek-tips