A couple questions about this Graphics Card.

gpus will be compatable regardless if they have a pci-e slot, except for really old mobos that cant take pci-e 2.1 cards.

What do you have for a psu, what monitor resolution? HD7850 is a great card - fast and efficient. It will max out most games at 1080.
-Bruce

I believe I've got a 750W psu, I'm not entirely sure as it was a spare from my brothers old computer, I'll open it up tomorrow and check it out so I'm sure, but would you recommend an upgrade if it is below 720W?. Also I'm running a 1920x1080 monitor.

whats more important is the name brand of the psu and the amount of amps that the 12v rail can give off. preferably certified because you dont want a rebranded psu where the company took a 300w psu and put a 750w sticker on it and resold it.

I asked him and he said he bought the pc pre-made before upgrading so he really doesn't know either, I didn't know this, so chances are it could be anything running my system at the minute considering he purchased it off ebay/amazon, I really don't know.

It looks like I'll have to buy a corsair psu to be on the safe side, I suddenly don't feel safe running my computer with it now I know of this.

you necessarily dont have to buy corsair, a sngle 7850 card will take no more than 350w on load max. a 430 or 500w psu will work in a single card setup, if you need psu recommendations for price, you can ask now.

HD7850 does not need a big psu - 500W is suggested by AMD (conservative) but as stated ^, not all psus are equal. Good quality units are peace of mind for all of your expensive hardware - don't go cheap(crappy) on the part that makes your computer run.
-Bruce

I was just thinking of corsair because I know they're reliable, but as you offered, what would be your recommendations, much appreciated.

what is your budget you are willing to spend on a psu if necessary


of recent psus This lepa model is extrememly nice for its cost and wattage especially if you decide and get the rebate for it

I'd be willing to pay around $100 if necessary

how about this one Thermaltake Power Supply 240-Pin 600 Power Supply

naming company doesn't really get you anywhere. each company has its bad power supplys. whats important is the actual model

http://www.amazon.co.uk/OCZ-OCZ600MXSP-UK-ModXStream-Po...
http://www.amazon.co.uk/Corsair-CMPSU-600CXV2UK-Builder...

Would either of these do the job safely?

yes @ above, you will also be able to crossfire 2 7850s at stock probably as well if the time arises and if you can.

Ok, thanks a lot, you've been a great help guys.