So I'm looking to move my HP prebuilt PC into a new case, in order to upgrade both the GPU and PSU, and I think I've sorted out most of the issues, but I have a couple of concerns. I imported images of the motherboard into Fusion 360 to measure dimensions in an attempt to check compatibility, and I've attached screenshots (with the grey highlighted square being MY motehrboard PCIe slot). My first concern is: only 3 of the 4 holes seem to line up with standard mATX boards. Is this sufficient to secure the Motherboard? My second (and main) concern is: The PCIe slots don't quite seem to line up. They are very close, but is this amount small enough to still work? Thank you so much for any help that you may offer.
Resources:
Fusion 360 screenshots
HP Computer Model
Motherboard Picture
Motherboard model
Resources:
Fusion 360 screenshots
HP Computer Model
Motherboard Picture
Motherboard model