New Build PC - blue screens (BSOD) during OS (Win7) install attempts

A recent PSU failure prompted a more wide spread upgrade of my desktop. This is a new build with a couple of older components.

New build specs:

Motherboard: Asus Z87-Pro

CPU: Intel i3-4130 (Haswell, but not refresh - has out of the box support from my MoBo)

PSU: XFX-XTR 750W (Gold)

RAM: Corsair 2x4gb 1833MHz DDR3 - quoted on the approved memory by the manufacturer.

SSD: new Sansung 840 EVO 250GB

Brought from my old build:

Graphics Card: ASUS EAH6850

Optical drives/case etc

Symptoms:

On first power up got POST message - new processor installed etc - moved to BIOS and set up system time etc. Everything seemed ok until a sudden BSOD with an irql_not_less_or_equal error message. Google told me this was often memory related, so I switched my RAM to slots A2/B2 (which I note is the recommended configuration for 2 sticks).

At that stage I got to BIOS again, and this time the system seemed stable in BIOS - thinking I had found the problem I began an install of the OS, but got another BSOD this time quoting SYSTEM_SERVICE_EXCEPTION.

The motherboard comes with a 'Memory OK' feature that auto checks the memory is compatible with the system (and presumably is in good health), I ran this and got a "Success" message in POST.

Howver, always getting BSOD during Windows install, I tried the following configurations:

• A1/B1
• A2/B2
• A2 only
• B2 only

No change, I always see a BSOD at the same point in the OS [Windows7] install (after windows has been "unpacked" I can select language, and agree to T&C, then format the intended drive, and then begin the install - the BSOD always ocurrs during "Extracting files (0%)..."

BSOD most commonly seen is STOP: 0x0000001E (with no named error)

Any advice greatly appreciated.

PS I have also optmized the voltage for the RAM via the on-stick XMP data (i.e. automatically via the BIOS feature that reads that)

EDIT: have tried SSD in both ACHI and IDE (and even RAID) / same result

RAM is explicitly tested as working by mobo manufacturer (exact ram model)