So, I'm thinking of getting a new computer mostly for games (would like to get a non-console bf3 and such) and have a budget for approx £1000 with screen, but excluding keyboard, mouse, speakers, headset etc. I've looked into building my own system since it seems to be a slightly cheaper option and i will be able to tailor it to whatever i want.
Thanks, I was thinking about going for crossfire a further down the line so the psu sounds good. That motherboard looks quite nice aswell, might aswell read around to see what it's like (and its cheaper aswell).
Change the RAM from 6GB to either 4GB or 8GB, doesn't matter which, as Sandy Bridge motherboards don't support triple channel RAM, so 6GB will have to run in single channel mode, thus likely impacting performance in a negative way.
The Samsung Spinpoint F3 1TB is one of the fastest 1TB harddrives around and is usually only ~£40, so it is a much better buy than the WD 1TB drive.
The processor is OEM, meaning that it does not come with a heatsink, so you will have to buy one and probably thermal paste as well.
Probably go for 4gb ram (save some money and won't really need more for gaming), the samsung f3 hd is £25 cheaper which is always nice so i'll look at that. Also, does the retail 2500k have a heatsink? Otherwise I might get this:
Thermalright MUX-120 Black Tower CPU Cooler http://www.scan.co.uk/products/thermalright-mux-120-bla...
Yes the retail version does come with a heatsink. Reasons you might want to replace it or buy an aftermarket cpu cooler is if you want to overclock (extensively), reduce noise levels or just keep temps down, which shouldn't be a problem for most of the year in the UK.
I quite like the Thermalright MUX-120, so don't have any objections to your choice there if you do decide to buy it.
Hold your horses, there may be a compatibility issue with your case and your GPU. The info I have at the moment says that the NZXT Lexa S can take cards up to 10.5" in length. According to the MSI website the 6950 Twin Frozr II is 275mm/10.8".
This was only a quick check, but I would hold off on the purchase until either you or I have done more research to confirm or deny the above.
Ah that's pretty annoying, might as well grab a phantom instead (love the look of nzxt cases) since it easily has enough room for it. I guess graphics cards have increased in physical size a fair bit since the lexa was released...extra £40 =/
Still, awesome looking cases all round, I'm sure I can manage that extra, thanks for the information!
The Phantom will last you a long time. It will also be easier to get a tidy interior with. It will actually 10cm to spare with the 6950 and can fit taller heatsinks if you ever need one. Good choice.
Graphics cards haven't really increased in size that much since 2009 (when I think the Lexa S was released), altho I think the interior design of the Lexa S is older than that, but some cases aren't designed for large graphics cards anyway.
Personally I think that you could even run your build with two 6950s on a good 650W PSU, this opinion is based on these links: http://www.guru3d.com/article/radeon-hd-6950-crossfirex... http://www.anandtech.com/show/4061/amds-radeon-hd-6970-...
These show power consumption (with more power hungry processors than Sandy Bridge) only going over 500W in Furmark stress testing. I think that a 650W PSU would have enough headroom to be able to run that. You also have to bear in mind that Furmark is not a normal usage scenario, so power consumption would rarely peak that high and not for extended periods of time. If you are going to a lot of overclocking, or upgrading in the future to more power hungry video cards then maybe it would be wiser to stick with a 750W unit.
So, based on the recommendations (very helpful) I've modified the build somewhat. I decided to use the gold rated NZXT psu after having a read through your links since its very efficient yet easily powerful enough for the forseeable future (including crossfire). I will probably get some overclocking done, although not a huge deal, maybe just the 2500k up to around 4ghz.