Upgrading my HP Pavilion Pavilion 500-334d

[AstroDoesPC]

I want to upgrade the GPU into a GTX 950 StormX Dual 2048MB GDDR5 and upgrade my ram to
Kingston HyperX Fury 8GB DDR3 1866MHz. However I shall keep the motherboard and CPU (i5-4460 @3.2). Since my current PSU is only 300w, I also will upgrade into a DN400 PSU and a Tesseract BF, because apparently my case can't hold the GTX 950. My main question is can my motherboard (Memphis-s/ 2af7) be able to hold the GTX 950? thanks.

(I'm a noob when it comes to computers)

 

[Mark_1970]

Being that your system is Haswell based architecture i would go a Haswell ready psu, as they sleep on less that 1w you need a psu that can handle those c6/7 sleep states . A psu that is not certified haswell ready may not wake after the sleep state, resulting in a hard reboot/ lost data. also 400w is not advised, 550/600 would be better, always good to have a psu with some extra watts to spare and be stable, one that works at full capacity will work hard and hot.

The gtx 950 will fit the mobo ok since the board has a PCI Express x16 (Gen 3.0) port and the case fits the higher profile gpu's, length of that card should fit fine too as that card is a fairly short one, 215 mm, just measure from the rear and see what length could you fit in there