Here are a couple of the cheapest boards OCUK do. I prefer Asus myself. Just upgraded to a RIVE from the P9X79 Pro, which, if you can find one is a great board.
YOUR BASKET
1 x Asus P9X79 Intel X79 (Socket 2011) DDR3 Motherboard £184.99
1 x Gigabyte X79-UD3 Intel X79 (Socket 2011) DDR3 Motherboard £145.99
Total : £340.58 (includes shipping : £8.00).
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Not going to be overclocking to the max on a 4930K and a cheap X79 motherboard IMO - need the uprated power stages on the more expensive boards.
The UD3 is ok but not without some little issues and not really a board for anything other than a middle of the road overclock.
Should be able to do that with a UD3, having a big cooler will certainly help.
http://www.overclockers.co.uk/showproduct.php?prodid=BG-333-GI&groupid=595&catid=689
Ive used this board to get a 3930K to 4.7GHz without any drama.
Triple slots, which card?
As far as I know you don't need the best motherboard to push the cpu? I'm aiming for about 4.6/ 4.7 and these motherboards seem to have about 8 or 9 power phases
Have a lot harder work pushing my 4820K on this UD3 than other X79 setups I have experience of and the 8+1 phase is definitely not as robust as the UD5+.
Somewhat regret buying this UD3 now - other UD3 boards in previous generations have been great no frills boards that still had very solid basic features that were as good as the higher end boards just not as feature rich - but this is very much a budget board (as far as budget ever goes with X79).
Hmmmm, I think you will find that problem on a lot X79 boards as they have many more slots than a regular board and these all have to be within a certain amount of room to keep within ATX spec.
Unless you can find a E-ATX sized board that will require a case with more expansion slots and thus spreads the PCI-E slots out a bit better.
Actually i just checked that to run it in x16/x16 there are 4 slots between the top of gpu1 and gpu2!
Its the 1st+3rd slots you use for 2way.
For some stupid reason I thought you also said 3way triple slot thick cards and not 2way![]()
You'll only get 2 slots running at 16x on an X79 chipset board, but the difference between running at 16x or 8x is barely noticable