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  #1  
Old 27-09-2010
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Join Date: Apr 2010
Posts: 24
Look at this when troubleshooting ATI Radeon HD 4870X2

I just bought an ATI Radeon HD4870X2 and well in some cases my very old card 1900XTX worked better, much better. And I am not the only one! The official forum ATI is chock full of people with my same problem I have tried everything, I installed all the drivers as possible the original and not starting from a restore clean with Driver Sweeper. In short I need to troubleshoot ATI Radeon HD 4870X2 but facing problem in that.
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  #2  
Old 27-09-2010
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Join Date: Feb 2010
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Re: Look at this when troubleshooting ATI Radeon HD 4870X2

I am also facing same problem and the only thing "in doubt? is the power supply. The board recommends at least a power supply 650 Watt, because with my old 400W after a while ' the comp you turn off. My dealer then?s mounted a good power supply 500 (Blue Storm II 500) and the comp has not been extinguished. The assembled the 500 because at the time he did not have a more powerful one.
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  #3  
Old 27-09-2010
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Join Date: Feb 2010
Posts: 489
Re: Look at this when troubleshooting ATI Radeon HD 4870X2

Check the temperature of your Northbridge the problem was found to be in notebook because of overheating in most cases, so just cool with a fan. In other cases, the vga does not pass the switch 3d and remains in frequencies 2d. Maybe post a screen of GPU -z it see to how fast works the PCIExpress and if the crossfire is active. It is not the best, and at low resolutions curbs the card.
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  #4  
Old 27-09-2010
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Join Date: Feb 2010
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Re: Look at this when troubleshooting ATI Radeon HD 4870X2

I do not know, the comp is well ventilated. The graphics card is at 70-73 degree at idle. I just tried other drivers even more recent ( Catalyst 8.9 BETA ( 8.53-080820 ) - TechPowerUp! ) But all went in vain, I meant no success with thing with what can I monitor the temperature of the Northbridge? I will be waiting for the related reply. Anyways thanks for the reply.
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  #5  
Old 27-09-2010
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Join Date: Feb 2010
Posts: 669
Re: Look at this when troubleshooting ATI Radeon HD 4870X2

I tried to install Hardware Sensors Monitor 4.4 and as a temperature generic motherboard gives me 47 degree. Value this reported by SpeedFan as Temp2. In general, however, I had trouble installing these programs because my windows do not allow installation of drivers unsigned. However, Windows has restarted a sort of test mode I cannot remove ok, I get a restore point.
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