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Use a driver cleaner with your 7600 in the case. Completely clean out any nvidia files with the driver cleaner. Turn off the computer and put in the ATI card. Install the ati drivers (download the newest ones). Once you have done that reboot and reinstall directx. If you are still having problems after that then you either have a defective card or you have messed something else up in your OS.therealFrek
Ok check the following now:
1. Are you using a seperate rail from the PSU to power the ATI card?
2. Which model of "Antec True Power 550" do you have? I looked them up and the top of the line trio one is pretty good but the bottom of the line one only has 30 amps on the 12v. If you are not sure then just pop your case and read the sticker on your PSU. Look for the +12v numbers that will look something like this "+12V1@18A, +12V2@18A.......etc etc". If you have the trio version of the antec 550 it will have 3 12v lines at 18 amps which is well more than you need for your system and a 1900xtx. If you have the 30 amp version that may be your problem. I'm not familiar with how many amps ATI recommends but I bet it is close to 30 amps on the 12v.
1.i don't have a clue 2.i cant rly find that so il give you the modal no. TP2-550PEPS12V thats what it says on my psuOk check the following now:
1. Are you using a seperate rail from the PSU to power the ATI card?
2. Which model of "Antec True Power 550" do you have? I looked them up and the top of the line trio one is pretty good but the bottom of the line one only has 30 amps on the 12v. If you are not sure then just pop your case and read the sticker on your PSU. Look for the +12v numbers that will look something like this "+12V1@18A, +12V2@18A.......etc etc". If you have the trio version of the antec 550 it will have 3 12v lines at 18 amps which is well more than you need for your system and a 1900xtx. If you have the 30 amp version that may be your problem. I'm not familiar with how many amps ATI recommends but I bet it is close to 30 amps on the 12v.
therealFrek
Hrmmm how to explain it?
If you have the PSU I think you do it has 2 12v rails. The cord that you use to plug into the 1900xtx. Follow it back towards the PSU and you will see that at some point along the line it will be bundled or it will in some way be connected to other power leads. The entire bundle is one of your 12v rails. What you need to do is isolate the cord powering your 1900 as much as possible. So use the other rail to plug in your HD and DVD etc etc. You want the video card on it's own rail so that it's not sharing power with anything else. Hopefully you follow what I'm saying, it's hard to explain it.
This might not even be the problem because it is odd that you can still boot up but your whole system is slow. Most of the time if the card isn't getting enough power it will cause random reboots or blue screens/lock-ups.
So bacially what he is saying is on the cable connecting your gpu, make sure there are no other cords joining the cord to your gpu, if not make sure there are the least amount attached to the cord.Hrmmm how to explain it?
If you have the PSU I think you do it has 2 12v rails. The cord that you use to plug into the 1900xtx. Follow it back towards the PSU and you will see that at some point along the line it will be bundled or it will in some way be connected to other power leads. The entire bundle is one of your 12v rails. What you need to do is isolate the cord powering your 1900 as much as possible. So use the other rail to plug in your HD and DVD etc etc. You want the video card on it's own rail so that it's not sharing power with anything else. Hopefully you follow what I'm saying, it's hard to explain it.
This might not even be the problem because it is odd that you can still boot up but your whole system is slow. Most of the time if the card isn't getting enough power it will cause random reboots or blue screens/lock-ups.
therealFrek
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