I can't figure out where to screw my graphics card loose

Sep 24, 2018
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I want to upgrade my gtx 770 but before buying a new card I want to make sure I know how to exchange them. I 've found a helpful video and I know what to do. The only problem is I can't for the life of me figure out where my gpu is screwed to the case ( if at all? ) I've been looking at it from all angles with a lighter and have tried several things I just can't figure it out. I'm aware of the blue strap and the PCI cords.
 
Solution
Two things:

1. The obvious one is the screw that holds down the end near the I/O ports.

2. The tricky one is a latch that holds down the other end.
It is complicated because the card gets in the way and you can't easily see how it works.
Sometimes there is a lever that you push down to release the card.
Others need to be swung to one side to release the card.
Here are some photos which show some different latches:
https://www.google.com/search?q=motherboard+pcie+latch+jpg&tbm=isch&tbo=u&source=univ&sa=X&ved=2ahUKEwiurKzo7dPdAhUF4VMKHYerDycQsAR6BAgAEAE&biw=1386&bih=1004
Two things:

1. The obvious one is the screw that holds down the end near the I/O ports.

2. The tricky one is a latch that holds down the other end.
It is complicated because the card gets in the way and you can't easily see how it works.
Sometimes there is a lever that you push down to release the card.
Others need to be swung to one side to release the card.
Here are some photos which show some different latches:
https://www.google.com/search?q=motherboard+pcie+latch+jpg&tbm=isch&tbo=u&source=univ&sa=X&ved=2ahUKEwiurKzo7dPdAhUF4VMKHYerDycQsAR6BAgAEAE&biw=1386&bih=1004
 
Solution