Rate my proposed build please

[craptakular]

Intel 2500k (I already own this)
Gigabyte Z77X-UD3H Intel Z77 (Socket 1155) DDR3 Motherboard
Corsair Vengance 8gb kit 1600mhz (I already own this)
Silverstone Fortress FT02 USB3.0 Case - Black (SST-FT02B USB 3.0)
Thermalright Silver Arrow SB-E CPU Cooler
Seasonic 760w '80 Plus Platinum' Modular Power Supply (I already own this)
MSI HD 7950 Twin Frozr III Boost Edition 3072MB (I already own this)

I also already own 2x SSD 120GB's and a 1TB, this will do for now.

I currently have my 2500k in a crappy micro atx setup, cable management is non existant as its so small, the memory passes 4 cycles of memtest and the default stock setup is stable 9hours prime95.

I cannot get my overclock stable like I once had at 4.7ghz.

Am I just throwing money at old rope? Should I just live with stock for 18 months then get a new intel cpu?

I really don't want to do this as the only games I play are Arma 2, and on full release Arma 3, they are very cpu intensive and stock speeds totally suck

 

[craptakular]

You're probably right about the mainboard.

I do have an Antec Cooler h2O single radiator cooler thingy, I could save another £50 and reuse that, although it would have to blow hot air if I used the FT02.

Would it be ok? I imagine it will still be better than my current airflow...


EDIT: Is the mainboard a revion2? I think that has the ability to manually adjust the vcore.

 

[craptakular]

Is that mainboard the revision 2, that has vcore adjustment?

 

[craptakular]

Ok, will get the whacking cooler you suggest and the board.

I wonder if there is an overclocking guide for the board, must be, there always is for gigabyte boards.