Would the power be enough,i was going to swap,but didnt know if 500w was ok or would o need 600w or 650?
even i knew the make(at work now) you still may not know it,ive googled it a bit back and even that didnt find any mention of them
Short answer:
Chances are, if it's not a known brand it won't be good enough and it's worth budgeting for a new one.
Long answer:
The wattage of a PSU can be misleading as it all depends on how those watts are delivered or whether they can be delivered where you need them. It has been a while since I looked at this properly but if I recall correctly, the PSU delivers its power down the different cables/rails in different ways or with different capacity. Some of those cables will be at 12v others at 36v but with watts calculated as amps x volts, if the ampage on a particular rail is low, you won't deliver too much in the way of watts. Or your component (in my case GPU) tries to draw too much wattage which exceeds the ampage limit and blows the PSU and kills the GPU. I'm probably not explaining this very well.
There's also a question of overall energy efficiency in the mix.
Have a look on the PSU when you're home and you should see a table showing the voltage and ampage of each rail. Do the amps x volts calc for all of them, add them up, and you'll get 500w. Worth posting that table here as that will give a clue as to what its capable of but I would still refer you back to my short answer.
Have a search on YouTube for PC Power Supply Guide as someone on there is bound to have a video that explains it all more thoroughly.
Edit: Have a look at the picture of this PSU and you'll see the table I mention.
https://www.overclockers.co.uk/cool...onze-semi-modular-power-supply-ca-37m-cm.html
This is good because although it is 650w overall, it's able to deliver all that power down the 12v rail if it needs to. The table is showing that of the total 650w, it can only deliver 120w across the 3.3 and 5v rails (which is fine) and then whatever is left can go to the 12v devices, subject to the 650w overall.
Another edit: Compare that to this PSU:
https://www.overclockers.co.uk/kolink-core-series-600w-80-plus-certified-power-supply-ca-02p-kk.html
It's a 600w PSU but can only deliver 480w on the 12v rail.