Rx 460 2-way CF with A78M-E35 mobo

Solution
That psu is not appropriate for crossfire or sli. And like mentioned, it is not advised to CF or SLI, especially as a budget solution. It would be wiser to go with a 1050 ti or 1060 3gb, that your psu could handle.
1| The link doesn't work.

2| You might want to list your full system's like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

3| Are you sure you'd like to crossfire with those cards?What stopping you from buying a better card?

4| We here at Tom'sHardware suggest that you buy the single most powerful GPU your wallet will allow and be done with it. Multi GPU is overrated and the games you intend to run them on don't benefit much except for a few titles.
 
Okey, so, the answers:
1. answer: https://www.amazon.co.uk/Corsair-CP-9020097-UK-PLUS-Power-Supply/dp/B00TE4XSMA/ref=sr_1_1?ie=UTF8&qid=1502149796&sr=8-1&keywords=550w
2. answer:
CPU: AMD A10-5800k((I'll upgrade this next year to a ryzen 1300 or 1200))
Motherboard: MSI A78M-E35((just as i said.))
RAM: Some Crucial, whatever 8gb 1600mhz
HDD(s):
1. Toshiba DT01AC050 500gb 7200rpm
2. Seagate Barracuda ST3160815AS
GPU: Integrated HD7660D
PSU: https://www.amazon.co.uk/Corsair-CP-9020097-UK-PLUS-Power-Supply/dp/B00TE4XSMA/ref=sr_1_1?ie=UTF8&qid=1502149796&sr=8-1&keywords=550w
Chassis: I dont know, some old Sharkoon, i dont care about the case.
OS: Windows 10 64bit Enterprise
3. answer: I have around 180 Euros for this, so this is what stops me.
4.: All other titles((which only support 1 card)) will run just perfectly fine i think @ 1080p