PCI express compatibility

[PCYOYO]

I am in the process of building/upgrading my first pc. I have a HP pavilion streamline 3514.uk  with a PCI express 1.0 slot but the graphics cards that I’m looking at have PCI express 3.0 will these be compatible and any other recommendations for upgrading this pre-built

[5x5]

PCIe gen1? That's ancient. Upgrading it is pointless.

[PCYOYO]

It’s my first time and my dad had an old pc he gave me for free so I’m working with what I can

[spartaman64]

yes pcie is backwards compatible 

[Origami Cactus]

Yes, if the slot is PCI-Express, then all pcie cards will work.

 

If you have a pcie gen 1.0 16x slot, then that would be equivalent to a pcie 3.0 4x slot.

 

So you are not putting a 2080ti in it, but low-end and mid-range cards are fine.

[PCYOYO]

Just now, Origami Cactus said:

Yes, if the slot is PCI-Express, then all pcie cards will work.

 

If you have a pcie gen 1.0 16x slot, then that would be equivalent to a pcie 3.0 4x slot.

 

So you are not putting a 2080ti in it, but low-end and mid-range cards are fine.

Thanks I’m getting as cheap and as low end as I can