Video Card has Stopped Working/Not Detected

Zotac Zt-20402-10l geforce gt 240 graphi...
December 23, 2010 at 15:46:08
Specs: Windows Vista
Hi first time posting here,
my Video card recently stopped working, every now and then when it my computer was switched off the Video Card wouldn't be Detected again, but sometimes after a reboot it would work fine, untill switched off again. Now it has stopped working completely so I've returned to the onboard Graphics. I've tried cleaning the computer, Reseating the Card, restored my computer to factory settings for a fresh start and still nothing. The fan on the card is still working so I know its recieving power. The computer has been taken to The Tech Guys at PC World 3 times and they claimed 'it would be fine' when giving it back each time.

The card I was using and am trying to use is a Zotaz GeForce GT240 1GB 128bit SDDR3.


System Spec:

Windows Vista Home Premium
System Model: IMEDIA X2415
Processor: Intel Core 2 Quad CPU Q6600 @ 2.4GHz(4 CPUs)
Motherboard: MCP73VT-PM
RAM: 3GB DDR2
High Power Plus 500W PSU

Sorry if this isn't the information needed. Tell me what details you need and I'll do my best.

Any help is much appreciated.
Thanks.



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#1
December 23, 2010 at 15:53:07
This card uses NVIDIA drivers, check at this site to see if you have the latest ones installed for your card.

http://www.zotacusa.com/downloads/?...


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#2
December 23, 2010 at 16:04:08
Checking updates for latest drivers is a good way and also :

(Assuming that your video card is not broken working)

Check your BIOS for settings of O/B to PCI-e. It can be in Advanced>Chipset>SouthBridge.
Check your BIOS for latest update and also Video Card's Bios.
(Theese bios updates can be a little dangerous if you never did before)

Finally, one week ago I bought a Graphic Card (HD4670) and spent my 12 hours to set it to work. Bios could't set auto swich to PCI-e. I have to do. But nothing happened. Then I give up. Started to think maybe my board or PCI-e slot crashed. Gave it back and bought an other card HD5570 and pluged it. It set to Bios and removed the O/B GP. I did nothing. It worked well.

So, acording to me if you have a chance to try it in another computer, first do it. If it works good, you can try to find solutions.



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#3
December 23, 2010 at 16:23:40
This is a hardware problem, not a software problem. Reinstalling Windows or messing with drivers was a complete waste of time. Reinstall the card making sure it's fully seated in it's slot, then connect the monitor cable to it. Boot the system & immediately enter the BIOS. Look for any settings related to the onboard video - enable/disable, shared memory, initial display 1st, etc. Make sure the are set correctly - onboard = disabled, shared memory = none, initial display 1st = PCIe. Save your settings & reboot. Once you get into Windows, install the nvidia drivers.

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Related Solutions

#4
December 23, 2010 at 16:33:51
I've Check For the most recent Drivers and updated them, the problem is when the cable is connected to the Video Card on the monitor I get 'No Signal'. I've considered disabling the onboard graphics and seeing if that works but if it dont I'm stuck with no screen at all?

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#5
December 23, 2010 at 16:45:59
No signal seems that it broken. As I said had the same problem and got it to plug a new card.
In general, if you plug a PCI-e card the Bios accepts it and sets the Graphic Card settings for it.. I mean makes disable the O/B.

But if you connect the cable and see no signal and system running , the video card can be broken. I had same problem and system was running I'd check it to connect cable PCI-e to O/B. Signal was seemed ;)

Don't afraid to make it disable. It only for changing O/B to PCI or PCI to O/B. You can set it always ;)


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#6
December 23, 2010 at 16:53:11
I just tested the card in another computer and it worked fine, booted up, displayed on the monitor through the graphics card, so it must be the computer

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#7
December 23, 2010 at 16:58:41
Windows can not effect to do this. Because your problem is in first , starting with pushing power button. So you have to check bios again.
Did you try to reset your bios? Clearing Cmos? Remove the battery (some mb needs to change cmos pin and replace the correct places again for 5-15 minutes to do this) and start your computer again with PCI-e card connected cable. The first boot the computer have want to set Bios settings. Do them and save.

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#8
December 23, 2010 at 17:05:30
But this is not the first time this has happened I'm not the best with computers so I dont want to mess with all the stuff in BIOS or reset it and have to set it myself and save it. By any chance could the PCI-E port be damaged from a previous problem. I had the same graphics card but with only a 230w PSU and didn't realise and ran it until it didn't work anymore, yes stupid I know now, but could this have affected the port in any way?

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#9
December 23, 2010 at 17:11:20
You tested the card in another pc and it was success. You can be right about the pci-e slot but you need to test it with another card ;/
About bios, if you reset it "The first boot the computer have want to set Bios settings."
It will say press F1 to make it manual or F2 to default settings. So it's not a big problem. Don't think that bad. You can do it easily. Reseting bios to see what happens is one of options to learn more about the problem.

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#10
December 23, 2010 at 17:13:42
I should of mentioned these things earlier, I tested another, less powerful card, in this computer and the same problem, the fan is running but no signal. So do you think a new motherboard would be a simple easy solution?

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#11
December 23, 2010 at 17:23:01
Easy and a bit expensive ;) There are more options to test it. Trying another graphic card , Checking bios settings correctly and Bios update etc.. If you don't have more informations about it, maybe a little price for technic services to check your motherboard is a good way.
I'm sorry, I tried to help you because I'd same problem before. I thought about a problem for my motherboard and PCI-e slot but saw that the problem was about just the card(which was non-used before, in boxed;) )
Whit this way, I learned this also :If you connected to PCI-e and If no signal and system starts to run after about 15 seconds, the computer tries to find a graphic card to run system. If it doesn't run with PCI-e it runs with O/B. And it doesn't mean your motherboard or PCI-e slot gives epic fails ;)

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#12
December 23, 2010 at 17:25:21
Thanks for all your help Latte, I think your right, will pay for the Techies to have a look, not confident enough to try it myself, thanks again.

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#13
December 23, 2010 at 17:29:59
Actually it's good for you. All new problem gives you experience ;) With this way, you can generate ideas in similar topics.

You're welcome and thank you trying to fix your problem with my ideas.


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