Is The Gtx 1050 compatible with my motherboard?

Solution
The motherboard has a gen 2 PCIE slot so it should work. The 300W should be able to handle the video card as it only requires a 300W. This said I wouldn't expect it last more a year or 2 tops. You may want to get a quality PSU at some point.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Antec EarthWatts Green 380W 80+ Bronze Certified ATX Power Supply ($42.89 @ OutletPC)
Total: $42.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-12-10 20:08 EST-0500
The motherboard has a gen 2 PCIE slot so it should work. The 300W should be able to handle the video card as it only requires a 300W. This said I wouldn't expect it last more a year or 2 tops. You may want to get a quality PSU at some point.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Antec EarthWatts Green 380W 80+ Bronze Certified ATX Power Supply ($42.89 @ OutletPC)
Total: $42.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-12-10 20:08 EST-0500
 
Solution


I got a 500 watt power supply in the computer right now. I install the graphics card but it wont work. Idk what the problem is.
 

Check your bios. Make sure you have bios 7.16 Rev. A. If not here is a link ot latest bios.
http://support.hp.com/us-en/drivers/selfservice/hp-pavilion-hpe-h8-1100-desktop-pc-series/5146418/model/5156838#Z7_3054ICK0K8UDA0AQC11TA930O2

Also try reseating your video card by pulling out the card and putting it back in. Try resetting your bios.

 


Is the motherboard supplying enough power? Because apparently the graphics card is supposed to be powered by the motherboard? pls help. I already spent 150 on this 🙁

 


All graphics cards are powered by the motherboard. If additional power is needed, then you'll need the connectors from the power supply (6 or 8 pin plugs) which go into their matching sockets on your graphics card.

Does your motherboard supply enough power? It's a proprietary HP motherboard, generally an unknown entity, and usually not built very well. Probably not. But it shouldn't prevent the graphics card from working. Did you plug the display cable into the graphics card? Is said cable still plugged into the motherboard? Is the cable plugged into the correct port in the back of the graphics card? Do you need to go into bios to tell the computer to actually use the graphics card? Does the computer even detect there being a graphics card? Did you push hard enough to make sure it's fully seated in the slot? Do the fans spin?

Start with physical symptoms. Just telling us it doesn't work is like telling your friendly neighbourhood mechanic "my car doesn't work, tell me how to fix it" when you've neither physically shown him the car nor described what doesn't feel right in some detail.