Greetings all!
I have been confounded ever since I installed my new Sapphire Radeon X1900XTX with an unexplainable and dizzying framerate glitch.
In all 3D rendering situations that I have so far seen, there is a very consistent "frame hop" that occurs every second, and it makes me dizzy.
Here is why the issue turns into a paradox.
If I monitor the actual frames per second or benchmark, my system performs outstandingly. If I turn on Vsync, thereby limiting the PFS to 60fps on my LCD's, it diligently sticks with that framerate. Yet, I still see hops in the rendering.
I've seen similar problems to this before with other video cards, and it has always been an LCD timing issue. Usually corrected by checking the option to reduce the DVI frequency at higher resolutions. I have tried it with this and without. Does not make a difference.
The car and the signs passing it being rendered on the catalyst control center display this unusual hop, the directX test in dxdiag that shows that spinning cube hops as well. Every game I have hops like this, without actually dropping frames. This occurs on both of my LCD monitors as well, one is a Sharp LLT-2015, and the other is a Dell 2405 FPW.
But what is interesting is I do not get these hops in the ATI demos. They are smooth as can be. The ATI demos I refer to are the ones I have recieved with previous ATI cards I purchased before this one. I have tried DebevecRNL, Rachel, Pipedreams, CarPaint and BearFur. They are all I can find that runs flawlessly.
It's very unusual to see such dizzying hops in 3DMark2001 yet the FPS stays consistent, haha.
I have tried Catalyst 6.2 and 6.3. I have tried both Windows XP and XP-64 on fresh reformatted installs with selective startup enabled. All driver settings, even the lowest quality highest performance settings all produce identical effects in 3D rendering situations. Could this just be two bad DVI ports on this card? I doubt it could be a power issue, because I experience no crashes.
As an fyi, my previous Geforce 7800GT did not have this problem, with otherwise identical system specs.
Here are my specs:
Video Card: Sapphire X1900XTX PCI-E
Motherboard: MSI K8N Neo4 Platinum Socket 939 NVIDIA nForce4 Ultra
Processor: Athlon64 FX-53
Memory: CORSAIR XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200)
Sound Card: Sound Blaster Audigy 2 ZS Platinum
Power Supply: ENERMAX EG651P-VE(FMA) ATX 550W
Monitors: Dell 2405FPW and Sharp LLT-2015
Thanks for anyones input, as I have never been this stumped before!
I have been confounded ever since I installed my new Sapphire Radeon X1900XTX with an unexplainable and dizzying framerate glitch.
In all 3D rendering situations that I have so far seen, there is a very consistent "frame hop" that occurs every second, and it makes me dizzy.
Here is why the issue turns into a paradox.
If I monitor the actual frames per second or benchmark, my system performs outstandingly. If I turn on Vsync, thereby limiting the PFS to 60fps on my LCD's, it diligently sticks with that framerate. Yet, I still see hops in the rendering.
I've seen similar problems to this before with other video cards, and it has always been an LCD timing issue. Usually corrected by checking the option to reduce the DVI frequency at higher resolutions. I have tried it with this and without. Does not make a difference.
The car and the signs passing it being rendered on the catalyst control center display this unusual hop, the directX test in dxdiag that shows that spinning cube hops as well. Every game I have hops like this, without actually dropping frames. This occurs on both of my LCD monitors as well, one is a Sharp LLT-2015, and the other is a Dell 2405 FPW.
But what is interesting is I do not get these hops in the ATI demos. They are smooth as can be. The ATI demos I refer to are the ones I have recieved with previous ATI cards I purchased before this one. I have tried DebevecRNL, Rachel, Pipedreams, CarPaint and BearFur. They are all I can find that runs flawlessly.
It's very unusual to see such dizzying hops in 3DMark2001 yet the FPS stays consistent, haha.
I have tried Catalyst 6.2 and 6.3. I have tried both Windows XP and XP-64 on fresh reformatted installs with selective startup enabled. All driver settings, even the lowest quality highest performance settings all produce identical effects in 3D rendering situations. Could this just be two bad DVI ports on this card? I doubt it could be a power issue, because I experience no crashes.
As an fyi, my previous Geforce 7800GT did not have this problem, with otherwise identical system specs.
Here are my specs:
Video Card: Sapphire X1900XTX PCI-E
Motherboard: MSI K8N Neo4 Platinum Socket 939 NVIDIA nForce4 Ultra
Processor: Athlon64 FX-53
Memory: CORSAIR XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200)
Sound Card: Sound Blaster Audigy 2 ZS Platinum
Power Supply: ENERMAX EG651P-VE(FMA) ATX 550W
Monitors: Dell 2405FPW and Sharp LLT-2015
Thanks for anyones input, as I have never been this stumped before!