Tom's Hardware > Forum > Graphic & Displays > Nvidia > NEED HELP. Upgrading my AGP nVidia5200 to nVidia7800GS

NEED HELP. Upgrading my AGP nVidia5200 to nVidia7800GS

Forum Graphic & Displays : Nvidia - NEED HELP. Upgrading my AGP nVidia5200 to nVidia7800GS

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chemdork   05-18-2008 at 10:14:45 PM

Hi-

I need some help. I have and AGP mobo and trying to upgrade my GX5200 to the last AGP card probably made, a BFG nVidia 7800GS OC. I thought I'd be able to tackle this, but I'm running into problems. What i have tried so far is use the DriverCleaner instructions: 1) Unistall old drivers; 2) reboot in safe mode; 3) unistall display adapter (since XP finds it again); 4) Disable AntiVirus; 5) Run Driver Cleaner and their Cab cleaner for nVidia filters (all of em); 6) reboot (it still finds the 5200, but not listed in driver hardware so I dont think it reinstalls it); 7) install the drivers for the 7800; 8) shutdown and put the new card in and plug the monitor into it. I thought that would be it. But no matter what i try, once I put the new card in and turn the PC on, there is no image on my monitor at all, including windows splash screen. Anyone have any thoughts? My PC is Pentium IV XT, 2G Ram, and just upgraded the Power supply to 400 W to support the card. Could the powere supply have different voltages on the different power connections? The card fan starts and lights come on once I turn the PC on, so I dont think it has a power problem.

Please Help!
Thanks-
chemdork

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mactronix   05-18-2008 at 11:08:46 PM
- 0 +


I only use ATI cards but i see no reason it should work any differant.
Uninstall old drivers/filters etc. shut down. install new card start up then install drivers.
Never had an issue. like i said i wouldnt expect Nvidia to be any differant but i couldnt swear to it.
Installing the drivers first then the card just sounds weird to me, how can it install properly and set the card up when the card isnt there?
Mactronix :)

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crabdog   05-18-2008 at 11:22:15 PM
- 0 +

You've got the order a bit wrong there. Uninstall the drivers, then shutdown and remove the old card. Replace with the new card and restart. Windows will detect it and be able to use the display but will probably be at a low resolution/setting. Then install the new drivers and reboot again. Good luck.

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chemdork   05-19-2008 at 02:18:34 AM
- 0 +

Gents-
This does not work either. The major issue is that as soon as the new card is installed (drivers already present or not) and I hook up the monitor, I cant see anything on the monitor as there seem to be no output from the card (monitor light blinks).

Reply to chemdork
MayDay94   05-19-2008 at 02:28:21 AM
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the others (mac, crab) told you the right order. that should work. if you're seeing nothing, i assume you plugged in the power connector directly to the 7800gs card. the 5200 does not have one, but the 7800 does.

------------------------------ AMD Phenom II X4 940 BE @3.5
Gigabyte 780g matx
G.Skill 4x2gig DDR2 800
evga 8800gt 512mb on 22" Gateway LCD
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turboflame   05-19-2008 at 03:01:45 AM
- 0 +

What kind of 400W PSU? Brand? Voltage?

Reply to turboflame
chemdork   05-19-2008 at 02:20:06 PM
- 0 +

Here are the specs for the power supply I upgraded to. I believe it fine to run it
http://www.pcpower.com/power-suppl [...] ell-2.html

Reply to chemdork
chemdork   05-19-2008 at 02:24:41 PM
- 0 +

MayDay-
Yes...plugged power to the card

Reply to chemdork
gomerpile   05-19-2008 at 03:09:26 PM
- 0 +

No need to remove nvidias 5200 drivers, never needed to, if replaced wiff a nvidia chip. I'm a nvidia dude since the 3dfx days. never have I removed a driver when replacing a video card of the agp. So now the problem is power 400 is not enough power. You need no lessor then a 550 or min 28 amps on the 12 volt rail. Or second take one stick of ram out and try again
http://service.futuremark.com/compare?3dm05=2112593
its a 805 processor, 3dmark reads it as a 950 because of the OCing also dont try to OC your graphic or cpu to match unless you have a real good cooling system


Message edited by gomerpile on 05-19-2008 at 03:38:23 PM
------------------------------ WAITING FOR THE NEXT MOMENT TO STRIKE

 

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chemdork   05-19-2008 at 03:44:05 PM
- 0 +

Gomerpile-
I'll try removing a stick of ram first to see if the juice can run it. Hopefully I can return the PSU and upgrade to their larger PSU http://www.pcpower.com/products/de [...] index.html which runs 35A on the 12V rail.

Reply to chemdork
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