Graphics card and PSU upgrading on Envy 700-410xt

[Nixty1]

Hello!

I am looking to upgrade my graphics card on my HP Envy 700-410xt to be able to play modern games with high settings. I am looking for advice as I know almost nothing about PC hardware. I have not done any hardware changes on my desktop yet. I believe it has:

My desktop has a GeForce GTX 745.

Motherboard: Pegatron Memphis-B

PCU: I believe it is only a 300 Watt (Model number is DPS 300AB-73 A, Part number: 667893-003, Spares P/N: 715185-001). 13.3 x 11.4 x 7.6 inches

Wondering if it possible possible to upgrade to a GeForce 1070 or 1060 and what PSU would be recommended. Would I need to purchase another case or motherboard to upgrade? 

Also looking into good cost-efficient SSD's and RAM to purchase although I have not done any research for it yet but advice is greatly appreciated. 

[erico · Accepted solution]

Here is a tour of your desktop PC

http://h20574.www2.hp.com/results.htm?SID=7161708&MEID=2DBB99E0-3635-4AF4-A6B9-1D13DDC39BD4

How to remove and replace parts

http://h20574.www2.hp.com/results.htm?SID=7161708&MEID=5F10E4A0-69BF-4260-87E8-E4D6CFBCA8DE

The original PSU does not have enough capacity nor PCIe power connectors.

You will need a PSU that is modular, so there won't be extra connectors hanging about in the case.

Power supply @NewEgg.com

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139147

Your desktop PC does have a UEFI BIOS, so a GTX 1070 or 1060 would work.