Agp to Pci switchover

March 3, 2009 at 16:45:46
Specs: Windows XP home
Okay, I'm in kind of a predicament here.
I am trying to switch my AGP nvidia geforce mx2
out for a grforce sparkle 8400 gs, which is a pci version. I deleted the old driver, took the card out, switched the bios to "auto" instead of "AGP" and put the 8400 in. I booted up, and was happy to see the computer was recognizing the graphics card, yet after the boot it did not load windows, and i am sitting here on my laptop wondering what i did wrong. PLEASE HELP! My rig is:
Dell Dimension 8200
pentium 4 1.8 ghz
512 mbs rdram
chipset 850
pc 800
Hope this is understandable... PLEASE HELP! I'M OUT OF IDEAS!

See More: Agp to Pci switchover

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#1
March 3, 2009 at 17:01:59
What do you mean by "it did not load windows"? Did you receive any error messages or blank screens?

WinSimple Software


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#2
March 3, 2009 at 17:09:37
Well, just trying to run it again, it loads up the dell bios, then just goes blank. No messages or anything. I can't seem to acces the bios settings anymore either, it doesn't seem to want to go into set up. Maybe the agp one is better... I dont see how it could be though. The newer one has a clock speed of 567 MHz and a shader clock of 900MHz... Even still, it has direct x 10 capabilities, where the mx has only supports 7...

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#3
March 3, 2009 at 17:12:28
Oh goodness, i just realized when i first boot it up, it says nvidia geforce 8400 gs system bios, then tries to load the dell one... Ug... Now i don't even know what kinda problem I've made...

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Related Solutions

#4
March 3, 2009 at 17:16:54
Video cards have their own BIOS that they use.

Try resetting the CMOS by removing that button battery on the motherboard, leaving it out for a minute, and then reinstalling it.

BTW, what's the wattage of your PC's power supply? It may not be strong enough for the graphics card.

WinSimple Software


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#5
March 3, 2009 at 17:23:13
The wattage is 250... Will try battery. Thanks!

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#6
March 3, 2009 at 17:26:21
250 is stretching it. I would upgrade to atleast a 300, but ideally a 350 or 400.

WinSimple Software


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#7
March 3, 2009 at 17:50:08
Okay here's what popped up:
Pheonix ROM BIOS PLUS version 1.6 copyright 1985-1988 pheonix technology ltd.
copyright 1990-2001 dell computer corporation
dell system demension 8200 invalid configuration info please run setup utility
Then it asks me to press f2 to run the setup utility. When i do this, it just goes blank again...

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#8
March 3, 2009 at 17:55:20
Where you said you "switched the bios to "auto" instead of "AGP"", is there an option there for PCI?

Did you try a different PCI slot?

WinSimple Software


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#9
March 3, 2009 at 18:03:29
ug... well how would i go about upgrading that?..

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#10
March 3, 2009 at 18:05:34
Nope, there was only agp and auto... I'll put my older card in again and check... and no i have not tried a different pci slot.

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#11
March 3, 2009 at 18:07:28
I was thinking you could put your AGP card in there to change it then put the PCI back in afterward. This is a shot in the dark, though, as it looks like the card should work.

WinSimple Software


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#12
March 3, 2009 at 18:15:19
No dice on the different slot, no pci setting...

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#13
March 3, 2009 at 18:18:44
Well other than your power supply, I'm about out of ideas. Maybe someone else will come along with an idea.

WinSimple Software


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#14
March 3, 2009 at 19:08:41
Why would you go from AGP to PCI? You may be getting a newer card, but the slower/shared PCI bus cancels out many of the benefits. Get an AGP card.

http://en.wikipedia.org/wiki/Accele...

http://www.newegg.com/Product/Produ...

BTW, look for an "Initial Display First" setting.


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#15
March 3, 2009 at 19:10:42
I was about to say the same thing, lol.

WinSimple Software


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#16
March 4, 2009 at 02:01:05
Try changing the VGA driver to standard with the old card before
installing the new card. Tne OS is using the old driver with the
new card.

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#17
March 4, 2009 at 03:48:27
Most BIOS settings don't allow you to completely turn off the AGP bus but setting the shared memory to 0 or as low as allowed can be done.

Because you no doubt have integrated graphics, that is the default graphics. In addition, your AGP and PCI cards can usually co-exist in harmony with both working. That holds true with an add in AGP or the integrated. There are some combinations that don't seem to work.

In order to get the PCI card to be your primary display you setup the dual display configuration with the PCI card as the Primary display. If you don't want to actually use both then at that time you can disable display 2.

To sum it up your PCI can't override the AGP slot. An add in AGP card does disable the integrated AGP graphics.

Hope I have made this clear.

The point made concerning the expected performance of the PCI card is valid.

The AGP bus was developed due to the restraints of the PCI bus. Total bandwidth limitations and the sharinging of those limited resources. The original version of AGP (1x) was still better than running a PCI card. The reason is the frequency is double and the bandwidth is exclusive.

You may have gotten confused by the name PCI. The newest video cards have a PCIe interface which sounds similar but is not the same bus.


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