If making things easier on the GPU isn't helping, the bottleneck may be the CPU. What happens if you overclock your CPU? I think there are some settings like draw distance that are more demanding on the CPU; lower those.
You said you're "starting" to get low FPS...were your frame rates high previously? If so, the two possibilities that come to mind are heat or unnecessary background processes (like malware). What are your CPU and GPU temperatures? Make sure all your fans are running, and your HSF isn't clogged with dust.
GTA 4 is a dog. It's a crappy pc port that seems to have slow down no matter what, but you shouldn't have a bad experience with your rig. I'm guessing either you have too much stuff running in the background, or you may have gotten some malware.
Your motherboard is holding back your system. There is no need to replace it, just know that you won't get the maximum performance possible out of your components. Replacing a motherboard typically requires completely reloading Windows and all drivers before reloading all your programs. You'll probably need a new Windows license unless you bought the Retail version.
Edit: At least you won't need to replace your RAM too, as your board appears to use DDR3, the current standard.
-_- good ol budget boards. Even so HT link speed is the last thing to affect performance.
1) Make sure you connect the monitor to your video card and not the onboard video connector on the motherboard. That pass through stuff never did work right ^_^ and I don't even know if that board supports it, but yeah just saying.
2) Make sure you onboard video is disabled. You should be able to check in the BIOS. If it's enabled, then I would also uninstall and reinstall the drivers if Windows had it as an installed device. It should be disabled when you have your GTX 560 plugged into the PCI-E slot but MB makers don't always put that in the BIOS.
By the way, if you're trying to max out Crysis 2 in DX11 with high textures and all that may be asking a little too much from that system. For Skyrim that GPU should be enough for it, but on max settings you may see a bit of a dip. If you look at this chart keep in mind that even though the 560 isn't included it should be a bit above the 460 and 6850
Also, with your CPU at 3.5Ghz it's understandable to see dips down to 29fps on the most demanding settings. You would be able to minimize that a bit with some overclocking, but I'm assuming you don't have a good tower cooler on that CPU
I have 4 High powerd Fns coolings pretty Sweet Actualy - so can i still play most games on Ok settings such as Crysis 2 Nice enough settings - And also i plan to upgrade eventualy to the 560 ti 2gb or the 570 - So you think i can play most games fine
If it's an OEM version of Win 7 yeah you would have to call good ol MS support when you install it. If you just swap motherboards, assuming windows boots up o.k, it will advise you that your hardware has changed and you need to re-activate it. If you didn't get a disk or anything then I would advise getting a copy to do a clean install, but that's just me.
Ok but for now you think im ok , My plan is now Thxx t your help L8er on in the year get a SLI mother bourd anda second 560 - But for now most games run at high settings ? - Oh and thXX for your awsome ansers first forum i have gotton ansers from