PCIe riser for M.2

[CayJ141]

I have a HP 8200 cmt that I'm trying to upgrade .
specs:
CPU: Intel i72600S
Ram: 16 GB DDR3
HDD: 500 GB
GPU: Strix 750ti oc
PSU: 600W
With the 750 installed in the PCIe 16 slot I am unable to access the PCIe slot below which is PCI Express x16 downshifted to X4 . It is in this slot that I would like to install a M.2 but can't because of the GPU depth . So my question is , can I use a X4toX4 riser ( which I'm sure will fit ) to connect a M.2 .

 

[The_Staplergun]

Yes, this is generally what a riser is for, is to get parts in that don't fit in otherwise.

 

[CayJ141]

Yes, this is generally what a riser is for, is to get parts in that don't fit in otherwise.

Would it be necessary to get a 16 to 4 because the top PCIe is a 16 downshifted to 4 or a 4 to 4 ? Thank you fir the quick response .

 

[The_Staplergun]

Just get whatever the slot is rated at. If it's a 16x slot, get that. The system will only use what it needs, don't force it to throttle.

Do a 16->16.