It will fit in the one slot for it and it is the PCIe x 16 slot the only one you have on your mother board (MOBO) Now it also depends on your power supply (PSU) is it enough power to run your graphic card (GPU)?
That MOBO will work with your GPU they are compatible. Just make sure that your PSU is a least 300w. And good luck to you.
It should be good with your PCI-E x16 Slot. If it doesn't work you may have to do a BIOS or Motherboard Driver Update. Almost all 380W PSU with at least 24A on the +12V rail (total) should work well with 5770.
just push down the tab on your slot which releases your graphics card from the slot and gently pull it out. There is no special recommendation on pulling out graphics card. If you are asking on how the nVidia geforce cards are, why are you not looking to your graphics card?
That means you don't have the graphics card, you are running integrated and you should not have to uninstall the graphics driver prior to uninstalling. You put your graphics card on the PCIEX16 slot and push it nicely in until it fits nicely. After that, go and plug the PCI-E Connector 6-pin from the power supply to the slot (you need one). After, you then install your drivers.