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Using Pci Graphics Card W/ Internal Graphics Card

#1 User is offline   defurr 

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Posted 23 December 2009 - 08:35 AM

I have an HP with Athlon 64 x2 3800+, 4GB of RAM. Motherboard has its own internal chipset (NVIDIA GeForce 6150SE) for video. I bought a BFG Tech GeForce 9400GT PCI Express x16 card. My hope was to run both the PCI card and the internal card concurrently, allowing me to run two VGA monitors simultaneously.

Problem is this: If you plug in the PCI card to the board and boot up the machine, you get no video signal on either the PCI's VGA port, or that of the motherboard. Presumably this is due to driver conflicts with the internal card, and indeed the installation manual of the PCI card says that you should disable the primary/internal driver in Windows Device Manager before inserting the card.

So, my questions are as follows:

1. If I do as the PCI instructions say and disable my primary/internal card, will I be able to reactivate the internal card after I've successfully installed the PCI card and its drivers, or will the two never play nicely together?

2. What if I disable the internal/primary card and then the PCI doesn't work? Haven't I just screwed myself? How will I be able to see to get back to Windows Device Manager if I now have no working video cards?

I know that the BFG Tech board will run an HDMI and an SVGA simultaneously. I was hoping to be able to avoid buying an HDMI monitor to make this work, which leads to question #3....

3. I noticed that the internal video card seems to be using 500MB of my RAM. If I disable that video card, will it give those resources back? The PCI board has 1GB of DDR on it.
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#2 User is offline   waldojim 

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Posted 23 December 2009 - 09:02 AM

#1 - typically, the integrated card remains disabled while another card is active. Removing the add-on card will re-activate the internal

#2 - again typically, the system will load in a basic vga mode, on whatever video card is available. Be sure that the internal is turned on in the bios before removing any add-on cards, and you will be good to go.

#3 - 99.999% of the time, once the internal card is deactivated, yes you are correct, your resources are no longer allocated to it.
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#3 User is offline   coastie65 

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Posted 23 December 2009 - 11:23 AM

Hi. To add a bit more, if you notice there are two outputs on the card. You should be able to run two separate monitors from the card.
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#4 User is offline   Rommel 

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Posted 23 December 2009 - 06:43 PM

View Postdefurr, on 23 December 2009 - 08:35 AM, said:

I have an HP with Athlon 64 x2 3800+, 4GB of RAM. Motherboard has its own internal chipset (NVIDIA GeForce 6150SE) for video. I bought a BFG Tech GeForce 9400GT PCI Express x16 card. My hope was to run both the PCI card and the internal card concurrently, allowing me to run two VGA monitors simultaneously.

Problem is this: If you plug in the PCI card to the board and boot up the machine, you get no video signal on either the PCI's VGA port, or that of the motherboard. Presumably this is due to driver conflicts with the internal card, and indeed the installation manual of the PCI card says that you should disable the primary/internal driver in Windows Device Manager before inserting the card.

So, my questions are as follows:

1. If I do as the PCI instructions say and disable my primary/internal card, will I be able to reactivate the internal card after I've successfully installed the PCI card and its drivers, or will the two never play nicely together?

2. What if I disable the internal/primary card and then the PCI doesn't work? Haven't I just screwed myself? How will I be able to see to get back to Windows Device Manager if I now have no working video cards?

I know that the BFG Tech board will run an HDMI and an SVGA simultaneously. I was hoping to be able to avoid buying an HDMI monitor to make this work, which leads to question #3....

3. I noticed that the internal video card seems to be using 500MB of my RAM. If I disable that video card, will it give those resources back? The PCI board has 1GB of DDR on it.


Hi,

I just want to add this for your knowledge.
This is cool and something I just learned.

With newer chipsets that have this technology, you can run the onboard GPU with a descrete VC.
For dual monitor support, the descrete VC card handles that, the onboard GPU only adds a boost.

As Waldojim stated, you will have only one or the other.
Also for the technology to work it requires an identical card as the onboard GPU with a motherboard designed with this technology.

In most cases you are better off with one stronger card with dual monitor support, and disable the onboard.

Just that I'd throw this in being it is part of what you asked.



Hybrid CrossFireX™ Support
Posted ImagePosted ImageBoosted Performance with onboard GPU and discrete graphics card
ATI Hybrid CrossFireX™ technology is a unique hybrid multi-GPU technology. It takes your gaming experience to the next level boosting PC performance by enabling the chipset’s integrated graphics processor and a discrete GPU to operate simultaneously with combined output for blisteringly-fast frame rates unleashing the graphics performance

Rommel




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#5 User is offline   smax013 

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Posted 24 December 2009 - 12:28 AM

View Postdefurr, on 23 December 2009 - 08:35 AM, said:



I know that the BFG Tech board will run an HDMI and an SVGA simultaneously. I was hoping to be able to avoid buying an HDMI monitor to make this work, which leads to question #3....




It is possible that you might be able to still run your two existing monitors from that one card. You might be able to use an HDMI to DVI-I cable that then connects to a DVI-to-VGA adapter that you can then plug into your monitor. I believe that this should work, but I am not 100% sure. About the only thing that might cause a problem is that I am not sure if HDMI ports ONLY put out digital only signals or if they also still can send an analog signal. I know that a DVI port can be capable of both digital and analog signals (i.e. a DVI-I port).
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#6 User is offline   cyberknight 

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Posted 24 December 2009 - 12:09 PM

Yeah rommel is right.
To add to that, if u need to run an onboard chipset along with a discrete GPU, u must have a mobo & a discrete GPU that supports Hybrid SLI/Crossfire.
Hybrid SLI in case of Nvidia Chipsets. Unless ur mobo supports this, u got to disable d onboard GPU to activate a new card! U will get back any resources ur onboard chipset was using, after disabling it..
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