HP pavilion elite m92290d

A GeForce GT 630 is only 5.7 inches (14.4 cm) in length so it should physically fit.

For a system using a single GeForce GTX 630 graphics card NVIDIA specifies a minimum of a 300 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 20 Amps or greater.

The OEM 350W power supply in your HP Pavilion Elite m9290d Desktop PC should have a maximum combined +12 Volt continuous current rating of 25 Amps so it should be able to power your system with that graphics card.

The PCI Express 1.0a x16 slot on the motherboard should have no problem physically accepting the GeForce GTX 630 graphics card.

Theoretically the graphics card's PCI-E Revision level should be backward compatible with the motherboard chipset's PCI-E 1.0a Revision level but there's no guarantee.