Alienware X51 R1 upgrade (Nvidia gtx 1050 Ti)

[Salem]

Hello everyone, I'm currently planning on upgrading my X51 R1. Specs:

Intel i7 2nd gen
Nvidia gtx 555
330W psu

So I wanted to ask whether I need to change the motherboard (buy the R2 or R3 motherboard) and processor if I installed the 1050 Ti, or will it work just fine without changing anything?

P.S. I tried using the 1060 but the pc crashes while running games and it can't play them at ultra/high. It's probably the cpu/motherboard can't handle the gpu?

Your help is appreciated.

 

[kelticknight]

the 1050 ti be better suited than 1060 as lower watts usage , i be doing mine soon upgrading from gtx 645 to 1050 ti and not changing the m-board or cpu as i5 is plenty and i got 330 watt power supply and new 16 gb ram and with the 1050 ti only using 75 watts its about same watts as my current gpu

 

[Pumas10]

the 1050 ti be better suited than 1060 as lower watts usage , i be doing mine soon upgrading from gtx 645 to 1050 ti and not changing the m-board or cpu as i5 is plenty and i got 330 watt power supply and new 16 gb ram and with the 1050 ti only using 75 watts its about same watts as my current gpu

what i5 CPU do you have