ASUS Radeon HD 6670 Display Problems

I'm having the following problems since upgrading to – ASUS Radeon HD 6670 graphics card.

1. Using the DVI to DVI port with my edge10 EF220a monitor, the system runs slowly in that windows for applications like chrome will skip around when moving them about the screen, videos have extremely slow fps in full screen (chrome only)(where video scans down in horizontal lines) but fine in small screen. The system is not responsive at times when playing video. Video plays ok in fullscreen if I put the desktop resolution way way down. The highest resolution is 1920x1080. In general the OS does not feel smooth and is often slow.

2. There is no HDMI to HDMI output whatsoever. I used a HDMI cable which works fine with other devices. I tested using two seperate TV screens, as my PC monitor has no HDMI input. I can't find any settings on the TV OSD relating to HDMI apart from the input.

I have installed the latest AMD drivers and have the lastest BIOS for my motherboard. I have tried using a driver sweeper to clean out remnant drivers from my previous nvidia card to no effect. I also have the lastest .NET framework for my OS. My system specs are:

OS: win XP pro 32bit | RAM: 8GB | SSD 125GB | PSU 350W | CPU: Intel Core i7 860 2.8 GHz
Intel motherboard DP55WB

No video problems with DVI using Ubuntu but I need it work on windows and for the HDMI to output. Would upgrading my OS help? Does someone think it is a PSU problem? I would think the HDMI would atleast output the boot screen...

Any help or suggestions is much appreciated.

There are different models of the Asus HD 6670, there is one with HDMI/DVI and Display connector ports on it.

Your monitor only has DVI and DSUB connectors so you cannot connect it using HDMI to HDMI.

I am not sure which slot you have used for the graphics card but it needs to be in the PCIx16 slot.

I would consider upgrading to a current 64 bit OS. XP is limited to 32 bit (so it can only use less than half your physical RAM) and will limit your direct X drivers to a much older version than most current apps will want to use and which your card can support.

Thanks for your post. I'm upgrading the OS to a current 64 bit. Also, I need a more powerful PSU so I'm doing that eventually. Thanks for your help, I'll post back if I still have problems.

Let us know either way, if it works it is good to post that to let others know. Then someone else with a similar problem can see the outcome of what you did to fix it.

Just to say I upgraded to Win 8 pro 64 bit and that works well...also put in a proper PSU but it was an OS issue. Thanks for your help.

Thanks for the update. God luck with your new configuration and have fun getting familar with Windows 8.