I have a rather odd problem. I am upgrading my old GTX 260 to a GTX 560.
Uninstalled the old drivers.
Swapped the new card in.
Installed the new drivers. They ended up being the same NVIDIA driver package (285.62)
As soon as I boot up with the new card, my CPU idles at over 60%. Simple tasks such as opening windows quickly maxes out the cpu usage.
Since the cards use the same drivers, I swapped my old card back in and the problem instantly went away.
I then did a Windows 7 reinstall to be sure there weren't any driver problems.
Rinse, repeat, same thing happened.
I then thought it might be a problem with the card so I requested an RMA and sent it back for a new one....Well the new one is doing the exact same thing so it can't be the card. Any ideas?
I have been having a similar issue, where my CPU usage goes through the room to 100% with a 6 core, and my whole PC would lagg for a second and then everything would settle down, i opended up task manager and fixed the problem. Now what could be happening is Windows is running in the background running a Driver updater thing. while your doing your Driver stuff. as for it not doing it with the other card, that is a bit strange
chexk programs running on the background, i had a similar problem, some programs were using cpu
Background programs don't seem to be the issue. With exactly the same boot settings and programs, my computer crawls with the new card installed. As soon as I shut down, swap the old card back in, and boot up again; the problem goes away.
Overclock your cpu to give the 560 more punch, it will help with increasing the performance of the card.....running at 2.67ghz isnt enough.
Check your power options and make sure it is set to high performance mode, if its set to power save it will throttle down your cpu speed.
Turns out there's an issue with this specific motherboard's bios and the way it maps out memory. Way beyond my understanding, but useful nevertheless. Evidently Foxconn never saw a reason to fix this...