Computer Stopped Recognizing Graphics Card

Asus / Nvidia geforce graphics c...
July 30, 2010 at 19:28:29
Specs: Windows 7
Hi everybody. I am very fed up with trying to solve this on my own so I hope someone here can help me. Yesterday, my graphics card (which read GeForce 8500 GT on display adapters in device manager) was working fine. It was connected to my HP w2448hc monitor via the white DVI cable.

Today, I installed an old JVC USB driver and then restored my computer to a restore point 5 days ago. Now, the computer does not recognize the graphics card. It is seated properly and the fan is spinning, but when connected, the monitor says "no input signal". I have to connect the monitor to my motherboard via the blue VGA cable (on-board graphics). Can anybody explain what happened and what I can do to use my graphics card again?

I don't exaclt know what kind of graphics card it is. When it was working, it said that it was a NVIDIA GeForce 8500GT, but it says ASUS on the card itself, and it doesn't look like the google images results for NVIDIA GeForce 8500GT. My computer is now showing that the display adapter is a NVIDIA GeForce 7100 / NVIDIA nForce 630i.

I'm not very good at this computer stuff, so I'd appreciate responses to be in layman's terms. Also, if you need any additional info please ask. THANKS!!

See More: Computer Stopped Recognizing Graphics Card

Report •

July 31, 2010 at 07:14:21
Download SIW from the link below and use it to determine what motherboard you have. Post the model and brand here for further help.

Report •

July 31, 2010 at 07:32:24
"I installed an old JVC USB driver and then restored my computer to a restore point 5 days ago"

A driver is software...what type of device was the driver for? And why did you have to use system restore?

Here's the 8500GT's made by ASUS:

Report •

August 2, 2010 at 01:01:15
Here is the information requested:

Manufacturer FOXCONN
Model Irvine
North Bridge NVIDIA GeForce 7100 Revision A2
South Bridge NVIDIA nForce 630i Revision A2

CPU Intel(R) Core(TM)2 Duo CPU E8600 @3.33GHz
Cpu Socket Socket 775 LGA

System Slots 2 PCI

Memory Summary
Maximum Capacity 1024 MBytes
Maximum Memory Module Size 2048 MBytes
Memory Slots 2

OS Windows 7 Ultimate
BIOS Vendor Phoenix Technologies, LTD
BIOS Version 5.22

Report •

Related Solutions

August 2, 2010 at 01:03:12
The driver JVC driver was for my 10-year-old camcorder. I found the driver off of the internet somewhere but was a little skeptical about installing it. I found the original CD so I wanted to get rid of the driver I installed, which I thought was making my PC a little slow, so to be safe, I restored it to when I knew everything was working fine. Probably shouldn;t have done that.

Report •

August 2, 2010 at 01:08:22
So something weird has just happened. i haven't used the computer for 2 days, now I turned it on, and the monitor remained black and said it was not receiving inout from either the VGA (on-board) or the DVI (graphic card). I did a hard restart (held down the power button) and turned the computer on again. Now the computer and the monitor are recognizing the graphics card.

It says it's a NVIDIA GeForce 8500 GT with a code name of G86. I went onto the NVIDIA driver site, had it scan for the card and the driver, and it reconized the GeForce 8500 GT and the latest driver installed, which it was not doing before.

I write all this because I'm curious as to what could have happened, and what I should do if it happens again?


Report •

August 3, 2010 at 00:23:24
Like today. I haven't touched the computer in any way since yesterday when everything was working. i turn it on and the computer is using the VGA (on-board) graphics, and doesnt recognize the graphics card. WHAT IS GOING ON?! Any help would be greatly appreciated

Also, there is an optional Windows update "nVidia - Network - NVIDIA nForce Networking Controller" that I haven't installed. Could that have anything to do with this? Any other info needed, please let me know.

Report •

August 9, 2010 at 08:50:04
The exact same thing is happening to me. I have a Gateway with a Geforce 9800GTX+ powered by a Corsair 750 watt power supply, and upgraded from Vista to Windows 7 when it came out.

My computer worked awesome up until one day I turn it on I hear a weird sound coming from the computer for a few seconds (I think it trying to recognize gfx card but failing) and the monitor staying blank so I am like !@#$ my gfx card is ruined so I switch the monitor cable over to the onboard gfx and the screen comes on. I love gaming so this is a huge incovenience for me because my on board gfx give me about 10 FPS in my game.

Anyway I switch out my GFX card with one I know is working and its the same thing so I realize its not the card. After that certain days while I have my cable plugged in to on board gfx and I boot up my computer the screen stays blank and for some reason the computer has recognized the gfx card again so I have to switch the cable over to the gfx card quickly and then I can play my games great until I turn my computer off again.

I think my problem started after a Windows update but I have uninstalled all gfx drivers and re-installed, took my computer apart and cleaned it. I don't know what the hell else could be the problem! Please help anyone.

Report •

August 9, 2010 at 08:55:29
Us both having this weird issue just recently really makes me think its a software, driver issue. Maybe we should keep checking Nvidia for a fix.

Report •

August 9, 2010 at 08:57:36

As per #6 above. If you didn't move the monitor cable then you are not running off the integrated graphics chip.

The monitor must be connected to the graphics you want to use.

Are you connecting the monitor to both the integrated and the add in graphics by chance, using two cables?

Your network controller has nothing to do with your graphics problem. However, if the network card is not working how are you going on the internet?

Report •

August 9, 2010 at 09:01:07
Ok quick mate get over to the Nvidia forum seems like other people are having the problem there too! They are reported some of the same issues I have and I am sure you have. Hardware section of the forum, in the 8 and 9 series part.

Report •

August 9, 2010 at 09:12:13
I don't think he was talking about his Internet network.

Report •

August 9, 2010 at 09:20:06
In #6 the OP asked about the network controller.

Report •

August 9, 2010 at 10:07:43

Just boot up the computer, un-install the old nvidia drivers (all of them), restart. Go to, download the latest 8500GT driver for your system, install it.

When you do a restore, you will probably lose the correct drivers, just be pre-pared in advance next time and don't turn a small issue into a large one.

PowerMac 9600(1 ghz G4)
512mb RAM
50gb SCSI
ATi 9200 PCI

Report •

August 9, 2010 at 11:48:58

The only reason I mentioned the network controller was because it was in a windows update that I have not installed yet. I was just asking if it could have anything to do with the problem I am having because I know almost nothing about computers and I have no idea what a network controller is. The monitor has both a DVI and VGA connection on it, so I have the DVI connected to the graphics card using one cable (white), and connected to the on-board graphics with a different VGA cable (blue). I am using 2 cables for 2 different connections because in the past when both were connected, the computer would use the better one (DVI) and only use the VGA if I diconnected the DVI. Even if I ONLY use the DVI cable and not the VGA cable, the screen will simply remain blank.


I have already done what you suggested, and like DEATHKNIGHT, have cleaned everything out, uninstalled all drivers, only installed the 8500 driver and STILL nothing helped. The graphics card is still not working most of the time.


Now that you mention it, I have also noticed a weird noise coming from the graphics card when I first turn on the computer. Like the fan is trying to turn on full blast but can't and keeps trying over and over for about 7 seconds, then stops and runs normally. I liken it to the graphics card version of someone reving a motorcycle engine about 10-12 times. I also think my problem started after some kind of update, which is why I restored my computer to when everything was working and there was no update and it worked for a while, then after I installed the update again (because I didn't think that was it), everything went wrong again.

Any ideas anybody?

Report •

August 9, 2010 at 11:55:50
Your problem is that you are trying to use both graphics adapters at the same time. When adding a graphics card you connect your monitor to it. If it has a DVI connector then use it.

DO NOT use both.

The network adapter is the hardware you use to connect to the internet and/or a network, if you belong to one.

I understood what you were asking. I posted #12 in response to #11.

Do you use the computer to go on the internet?

You may need to install other hardware drivers also.

Report •

August 9, 2010 at 14:37:01
The only reason i am currently using both cables is because normally it would only choose the best when when both are connected. If I only use the DVI one and leave the VGA one unconnected, the screen will remain blank. If I use the VGA only, the screen will work, but again, using the on-board graphics. The VGA goes to the motherboard, the DVI goes to the graphics card. The graphics card ONLY has a DVI connection. I hope this clears things up.

I do use the computer to go on the internet. This is my only computer, which is why I am so desparate to find a solution. Which hardware/drivers would I have to install? Everything was working fine about a month ago, so then there were even fewer/older drivers and hardware than there is now and it is not working now.

Report •

August 9, 2010 at 15:26:42
Shut off the computer and unplug it. remove the monitor cables and then the add in card. Re-install the add in card and connect ONLY the DVI cable to it only.

Start the computer and immediately enter the BIOS (setup) screens. Choose the add in card as the first graphics device in those settings. Save and exit. If you don't see anything on the monitor immediately then there is something wrong with the add in card or the motherboard slot. If you DO see video then let the computer boot to Windows. If it doesn't appear the add in card has been installed first check the resolution of the display. Set to the recommended resolution for your monitor.

If you can't change the resolution you then need to install the correct drivers for the add in card.

Report •

August 13, 2010 at 11:02:23
I did what you suggested, and the screen stayed blank. I hit F10 to enter the BIOS, but since the screen was blank, I couldn't see anything.

How could there be something wrong with the card or the slot if it was working fine 2 weeks ago? How can I find out for sure if this is the problem? I have another video card (an older one) that I could try. If it is recognized, then what?

I don;t think there is anything wrong with the card or the slot because it was working fine a couple of weeks ago, and the card fan gets fired up everytime I start the computer, not to mention is running when the computer is on, even though it is not being used.

Report •

August 13, 2010 at 12:29:47
Where do you have the monitor cable connected? Should be on the add in card only. I couldn't say if using both cables to the monitor could have done something to either the card or monitor. Try the monitor on a different computer.

Try going back to the onboard only without the add in card inserted.

Report •

August 16, 2010 at 09:43:24
I too am having this same problem....A couple weeks ago after a windows update i guess...i go to power on my PC and the screen just stays black so im like ? after messing with it for awhile i gave up and took out the card and hooked the cable back into the onboard card and boom...starts up with no problem

I have a ATI Radeon 4650 card and today i started messin with it again bc i hate gaming on low settings...i installed the latest drivers which are only a couple weeks old as well (maybe they came out after the update?) and reset the motherboard...plugged the card back in and there it came back up.....well i was like ok cool...shutdown the comp and packed it up to head to my families for a couple days and when i get here...i power it up and nothing....reconnected the onboard and installed the drivers AGAIN ..shutdown and did what i did last time....and this time it comes back up again

so im guessing this is a driver problem? something to do with the windows update maybe...but i dont know what the drivers left when i unplugged everyting....i can restart to PC jut fine and it still works

I went into bios and the GPU was set at i changed it to PCI-E but i dont know if thats going to do anything

Report •

August 16, 2010 at 11:43:18

For best results you should start your own thread here. Provide specs and details of your problem.

Report •

August 16, 2010 at 13:55:43
The monitor cable was connected to the card ONLY. But the screen stayed black, so I had to restart the computer. Again, the screen stayed black, so I restarted it with the VGA and it worked fine.

The monitor worked with the DVI on another computer. The on-board works, but the card doesn't seem to be recognized by the computer. That is the whole problem. Any other suggestions/ideas?

Report •

August 16, 2010 at 16:35:39
Post the full model number s for the card and your power supply.

Report •

August 20, 2010 at 11:40:41
Power Supply:


Card: (as best as I can tell)

P402-LP REV:1.00

Report •

August 20, 2010 at 18:16:34
Power supply is only 180 Watts. Not much overhead there.

Going back to using both cables. You should NOT do that. You may have ruined the card.

Your computer must be one of those small form factor units. 180W is not enough power to run a fully decked out rig.

Report •

August 24, 2010 at 00:09:18
Yea, my computer is a HP Pavilion Slimline. I don;t know the model name, but it's the previous version to the current slimline they have. It's a small computer, but that's why I was using a kinda cheapy graphics card. But I really want to know what happened or if I can fix it because I do a lot of video editing, and it's been really hard/frustrating/annoying to work with lots of videos only using the on-board graphics card. I'll try to plug the card into another computer to see if it'll work there, but I don't know if it has a PCI slot. I'll get back to you. Unless you know if there is a way to find out if the card is ruined? The fan is still working...

I stopped using both cables and am now only using the VGA one (since it's the only one that works)

Report •

August 24, 2010 at 02:34:31
You don't have enough power to run an add in card. That is the problem. Even a weak add in card needs a 250/300 watt power supply.

I don't think the model number you posted for you video card is the actual model number. Look at the links below to see if any look like your video card.

Report •

September 2, 2010 at 11:19:46
No, none of them are. I don't know which one it is. I've typed in all of the numbers I can find on the card, but nothing comes up on the internet. I found one online that some kid was selling, if I can find it again, I'll post it here.

But now I'm REALLY starting to notice the difference in performance, even web browsing, without the card. Any ideas how to get it working again? Because it was working for over 2 years, so there must be some way to make it work again...

Report •

September 2, 2010 at 11:25:54
I found a picture of the graphics card by typing "HP Pavilion Slimline GeForce". The picture looks almost EXACTLY like what I have, though they say theirs is a 9600 or 9800 GT, where mine is a 8500GT. I don't understand anything they are saying in this forum, but maybe this gives you some addisional help?

Report •

September 2, 2010 at 11:34:12
Here is another picture of what the graphics card looks like in the motherboard. This one looks even more like mine than the other one.

The forum it is found on is 7 posts down, the middle link.

Report •

September 2, 2010 at 16:04:00
Download and use SIW.exe to determine the actual model of your GPU, if it is important to know. Get SIW at the link below.

Different manufacturers may use different components. That doesn't mean much.

Report •

September 7, 2010 at 15:04:29
I know the model of the GPU (the on-board graphics). It is an NVIDIA GeForce 7100 / NVIDIA nForce 630i

The model of the graphic card that is no longer working is NVIDIA GeForce 8500 GT. If I download the program SIW.exe, it will only detect the onboard graphics whose model is mentioned above, and will not tell me the model of the graphic card because it is not being detected from the computer.

Report •

September 7, 2010 at 15:18:25
As I stated, 180W power supply is not adequate. Why did you buy a mini case when you need to perform video editing. I am surprised you ever got the 8500GT to work, if you did. With both cables connected you can't really be sure now can you?

Are you able to run the integrated at the resolution you need to? If not, perhaps you need to reinstall the graphics drivers. You can get them from the nvidia site.

Report •

September 7, 2010 at 16:37:46
Hmm. I did not buy a mini case for the puropose of editing. I bought it because of was so small. But I thought I would be able to do more. With the graphics card, I was able to play a few video games.

The 8500GT definitely was working, and working well. Then one day it just stoppped being recognized by the computer, even though the fan still works. No, I am sure that the 8500GT was working, because when it was, only the DVI cable was being used. Then when it stopped working, I connected the VGA cable so i could see something on the screen. It was then that both were connected. But prior to that, when the card was working fine, I only had the DVI cable plugged into the card. No other display connection was being used.

I have the resolution that the screen recommends (1920 x 1200), but that is not the problem. The problem is that the GPU cannot handle the 3D graphics that some games require, nor even the graphics on a few internet games (it lags very slow with a lot of graphics at once), a problem that the card never had.

Report •

September 7, 2010 at 16:42:04
Here is another website that mentions my computer and motherboard and some of the graphics cards that are compatible with it, even with a 180W power supply. My 8500 GT is on the list. Maybe there's some useful information for you in there? Of course, I don;t really understand what they're talking about...

The stuff in light green in the first post seems to be related to my issue....

"The Slimlines support any low profile half height card that works within the 160 and 180 watt PSU limitations. Known working examples include Nvidia 7300, 7350LE, 7600gt and ATI 3450, 3650, 4350, and 4550. I would advise a power supply upgrade for the following video card choices (>40 watt power GPU power requirement) 8400GS, 8500GT, 8600GT, 9500GS, 9600GT, 9800GT, or the GTS250. I strongly recommend the 4550 as a good HTPC card based on fellow thread memeber's expieriences --- it utilzes very little power (30 watts max) and is fast! * Note: over the course of time -- a few people have found their systems becoming unstable with video cards over 40 watts with the stock PSUs even if they worked at first -- especially the 160 watt PSU AMD based slimlines. Moving to a low power AMD CPU, (as discussed above) or replacing the power supply seems to remediate the issue. A 9600GT or 9800GT card absolutely requries a PSU replacement. Plan on limiting your GPU upgrade to a card that draws less than 40 watts if you want to stay within the stock PSU capabilities. I personally found a 40 watt video card (the 8400GS) proved too much power draw for my stock 160 watt PSU over the course of time. Just utilize the ATI 4550 if you just want a HTPC with the stock PSU."

Report •

September 7, 2010 at 18:28:26
I don't see where it states an 8500GT is on the list. I states he recommends a 40W upgrade on the power supply. I would assume that meant to a 220W power supply.

That also assumes the rig is running with factory hardware. What have you added to the computer?

At any rate, unless your card is not properly seated you state the BIOS is not picking it up and you did run it connected to a monitor with the onboard also connected. That means you were using power for both GPUs.

Your card appears to be dead and you need a new one. I wouldn't have bought a computer with only a 180W PSU if I knew I would be adding a graphics card. That is just me though.

Another possibility is the power supply is compromised.

Report •

September 29, 2010 at 15:22:03
The only thing I have added to the computer is 2 2GB ram and the CPU Intel(R) Core(TM)2 Duo CPU E8600 @3.33GHz. I am starting to accept that it is the power supply that is the problem. If I replace the PSU, would the graphics card work again? Because, as you said, I don't think there is a graphics card out there that has the performance of the one I was using, but can work with a 180w PSU.

Report •

September 29, 2010 at 20:54:57
Best bet would be to somehow test the card before replacing the PSU. Maybe a shop near you could test it.

I found that your CPU can draw 65W. Add that to the 30W estimate of the graphics card and then estimate what the remaining hardware draws. Below is a link I found that can give some idea of what the remaining hardware power requirements might be. Do the math.

Report •

Ask Question