No video signal

[Dryfly]

I have a HP a1430n, AMD 3800+ dual core, ASUS A8N LA motherboard and NVIDIA GeForce 6150 LE video. After several conversations with HP, NVIDIA and emails to ASUS I still have the same problem.

When ever the computer goes to green / sleep mode it sends a no analog signal and you must shut it off manually, then you must wait about 30 minutes to restart. It also does the same thing whenever you try to restart, even if the computer was only on for a few minutes, all fans work and system is not hot. If I set my power setings to never the computer will stay on for days. If you try to restart before 30 minutes the fan stays on high speed and stays there, computer will not start. After 30 minutes the fan starts on high for a few seconds then shifts to normal and the system will start like normal.

I have done recovery 2 times per/HP, Changed to different BIOS per/HP, replaced hard drive per/HP, taken off any excess software. Done stress test for video per/NVIDIA (151) not great but within range, stress test for system per/NVIDIA all passed. Have not heard back from ASUS about motherboard.

Any ideas please.

If I need to change motherboards and video card and recommendations. I am not much of a gamer, more photo and cad work. I do down load movies and watch tv from Europe over net.

Thanks, Dryfly

[zemat_23]

i got a no video signal from Nvidia graphics card.. tried to change the video card but had the same problem.. both its VGA and DVi output have no signal.. monitor is working.. mobo has a built-in vga board and its working fine.. so it looks like the systems are good except for the video card or something else????..
even tried to unseat the CMOS battery but still got no positive result..

can somebody give me some ideas to try???
thanks!

PCs specs:
AMD K9NGN2 processsor
MS7252 mobo
ASUS EN7300GT silent graphics card

[jun_ph26]

Originally Posted by zemat_23

i got a no video signal from Nvidia graphics card.. tried to change the video card but had the same problem.. both its VGA and DVi output have no signal.. monitor is working.. mobo has a built-in vga board and its working fine.. so it looks like the systems are good except for the video card or something else????..
even tried to unseat the CMOS battery but still got no positive result..

can somebody give me some ideas to try???
thanks!

PCs specs:
AMD K9NGN2 processsor
MS7252 mobo
ASUS EN7300GT silent graphics card

to make the problem simplified. first test your graphics card and monitor to a working pc. one by one only so that you see who had a problem. let go back to your unit.

you said, your mobo has a build-in video or vga (usually com1&com2). connect your monitor to com1orcom2, don't installed your graphic card yet then turn it on, let see if you have signal from your monitor. if it had, then go cmos/bios setup, locate the primary video, you can see this in advanced setup. in primary video there are two option 1. PCI & 2. AGP, on built-in video the default set up is PCI in cmos/bios. then select it on AGP setup and turn it off. now installed your graphic card and turn it on. let see if this work.

[Gabriel Torres]

Hello,

We've written a ful step-by-step tutorial on this subject. Please follow it:

http://www.hardwaresecrets.com/article/547

Cheers,
Gabriel.

[jun_ph26]

Originally Posted by Gabriel Torres

Hello,

We've written a ful step-by-step tutorial on this subject. Please follow it:

http://www.hardwaresecrets.com/article/547

Cheers,
Gabriel.

much better to read sir gabriel tutorials... he is professional

thanks sir gab.

[zemat_23]

Originally Posted by jun_ph26

to make the problem simplified. first test your graphics card and monitor to a working pc. one by one only so that you see who had a problem. let go back to your unit.

you said, your mobo has a build-in video or vga (usually com1&com2). connect your monitor to com1orcom2, don't installed your graphic card yet then turn it on, let see if you have signal from your monitor. if it had, then go cmos/bios setup, locate the primary video, you can see this in advanced setup. in primary video there are two option 1. PCI & 2. AGP, on built-in video the default set up is PCI in cmos/bios. then select it on AGP setup and turn it off. now installed your graphic card and turn it on. let see if this work.

hi, thanks for the advice but i tried it and this didn't resolve the problem.. com1 and com2 video on-board can work fine as well as the monitor.. following the troubleshooting guide by gab torres also didn't deliver good results.. its a good guide actually but gone with the last steps and still nothing.. i suspect that the problem could be on the southbridge chipset (SB600) on the mobo.. it looks like it cannot detect the graphics card from the pcie x16 slot.. ????
anyway, i'll try to change the mobo and see if the problem is really there.. or do you have a better idea on how to test this hypothesis???

[jun_ph26]

Originally Posted by zemat_23

hi, thanks for the advice but i tried it and this didn't resolve the problem.. com1 and com2 video on-board can work fine as well as the monitor.. following the troubleshooting guide by gab torres also didn't deliver good results.. its a good guide actually but gone with the last steps and still nothing.. i suspect that the problem could be on the southbridge chipset (SB600) on the mobo.. it looks like it cannot detect the graphics card from the pcie x16 slot.. ????
anyway, i'll try to change the mobo and see if the problem is really there.. or do you have a better idea on how to test this hypothesis???

as you said. you're com1&com2 and monitor are working fine, I'm assuming that your video card PCI-e16x has been tried and test it in other pc. if that work in other pc maybe your last resort as you said to change you mobo. maybe the problem is in mobo itself.

just wait sir gab reply...

thanks.

[sandrisb]

Here is my problem.
When my desktop PC is turned on there is no video signal. Monitor stays black as if PC was not turned on. I can hear HD working, windows start music in my speakers but no video. Not for a second after pressing power button. I can press power off button on keyboard and after nice windows goodbuy music PC turns off.
It started one morning. Previous night there where no troubles. Turned it off normal way and next morning - no video.
Checked monitor - attached to my laptop with the same DVI cable - no problems.
Changed video card - no changes.
Tried to take out RAM - left only 1 - no changes
Took out battery from MB for 5min - no hanges.
Checked contacts - everything looks good, light, fans on video card works, everything looks normal. But no video.
checked cables - attached, reattached, tightened - no video
System - thermaltake 500w, asus a8n5x, 2mb ram, seagate 160gb, elitegroup nvidia 9600gt, amd 64 3200+. onlite? dvdrw, fdd 3.5, winXp

Any ideas what could cause this? Tried to google but could not find anything like this.

Let me know if any other info could help.

Thanks.

[Olle P]

It really does seem strange.

The only time I've experienced something similar was when a friend of mine installed a new graphics card and didn't insert it properly. He bent it slightly down, which lead to poor connection at some dots on the AGP port.

Perhaps you have a similar problem? Try to wiggle the graphics card a bit when the computer is up and running (of course while being cautious to prevent ESD).

Cheers
Olle

[sandrisb]

tried to move it around. did not get any results. bad or good.....

Could it be malfunctioning power supply?

thanks for helping!

Originally Posted by Olle P

It really does seem strange.

The only time I've experienced something similar was when a friend of mine installed a new graphics card and didn't insert it properly. He bent it slightly down, which lead to poor connection at some dots on the AGP port.

Perhaps you have a similar problem? Try to wiggle the graphics card a bit when the computer is up and running (of course while being cautious to prevent ESD).

Cheers
Olle

ok, problem solved. pcie 16x slot was dead. changed video to pcie 4x - everything goes.
now i need new mobo, processor, memory. Any suggestions for sunday gamer?

thanks for help.