Hooo boy, lots of advice and no one actually touched on the fact that the 8500GT does not come with a god damn HDMI port. It comes with a bog standard VGA port and a bog standard DVI port but it far to low end to have an HDMI port.
Here's your test, turn on the computer on and keep an eye and ear out. If you get no post beeps then their is no major issue with CPU, RAM, GPU connection that could be causing the problem. If the IDE light (Hard drive light) starts flashing then chances are it's loading windows thus the chances of it being a motherboard fault are reduced.
Now a quick search of google for HP Pavilion with GT8500 brings up
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01324212&tmp_task=prodinfoCategory&lc=en&dlc=sk&cc=sk&product=3659641&os=2093&softwareitem=pv-62452-2&lang=sk
You have several options for testing
- Is it the monitor? Plug it in to another computer does it work, if so then your monitor is fine.
- Is it the cable? Test the cable on another PC if it works then it ain't the cable.
- Is it the GPU, or the GPU port (that card has two ports a VGA and DVI port.) If you are using the DVI port then get hold of a VGA cable and hook it to the monitor via that if it works then your DVI port is busted on your GPU. Vice versa if you use the VGA port, get hold of a DVI cable and hook the monitor up with that.
- The motherboard spec shows that it has onboard graphics, you will need a VGA cable to test this. You may also need to do a bios reset before trying to test it. Since you have to disable onboard GPU from within the BIOS the onboard GPU may not work until you select to use it. As you have no means to do that because of a possibly busted GPU the only way to do that is to reset the BIOS....
lol Just a thought, your PC is 3 or 4 years old if your Bios battery has run out, then your Bios will have been reset to use onboard graphics. If you plug in your VGA graphics cables and it displays without you having to change anything in the Bios then your Bios battery has run out and needs to be replaced and onboard graphics use has to be disabled from within the Bios.
Here's your test, turn on the computer on and keep an eye and ear out. If you get no post beeps then their is no major issue with CPU, RAM, GPU connection that could be causing the problem. If the IDE light (Hard drive light) starts flashing then chances are it's loading windows thus the chances of it being a motherboard fault are reduced.
Now a quick search of google for HP Pavilion with GT8500 brings up
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01324212&tmp_task=prodinfoCategory&lc=en&dlc=sk&cc=sk&product=3659641&os=2093&softwareitem=pv-62452-2&lang=sk
You have several options for testing
- Is it the monitor? Plug it in to another computer does it work, if so then your monitor is fine.
- Is it the cable? Test the cable on another PC if it works then it ain't the cable.
- Is it the GPU, or the GPU port (that card has two ports a VGA and DVI port.) If you are using the DVI port then get hold of a VGA cable and hook it to the monitor via that if it works then your DVI port is busted on your GPU. Vice versa if you use the VGA port, get hold of a DVI cable and hook the monitor up with that.
- The motherboard spec shows that it has onboard graphics, you will need a VGA cable to test this. You may also need to do a bios reset before trying to test it. Since you have to disable onboard GPU from within the BIOS the onboard GPU may not work until you select to use it. As you have no means to do that because of a possibly busted GPU the only way to do that is to reset the BIOS....
lol Just a thought, your PC is 3 or 4 years old if your Bios battery has run out, then your Bios will have been reset to use onboard graphics. If you plug in your VGA graphics cables and it displays without you having to change anything in the Bios then your Bios battery has run out and needs to be replaced and onboard graphics use has to be disabled from within the Bios.