Gigabyte Z97P-D3 BIOS Revision? (new board won't boot)

[SuperJonty]

Hi, just bought the Z97P-D3 board yesterday with an i5-4690K, and it won't boot. Having checked around, I've found that apparently the board only supports this CPU from BIOS revision F5 onwards, which was released in May this year. There's nothing on the board to indicate the BIOS version - can anyone tell me?

Just in case it matters, everything powers up for a second (PSU and CPU fans) before restarting, on an infinite loop. I've got nothing but the PSU, CPU (& fan), RAM, power switch and speaker plugged in. No POST beeps, although the speaker crackles a bit each time it resets (the speaker worked in my old machine until yesterday).

Sorry if this doesn't make sense, I've been trying to get this to work all day and I'm getting nowhere

[SuperJonty]

Just in case, my full specs are in the system dropdown <<<

Everything is new apart from my PSU, which was again working in my old machine fine as of yesterday

[Agent]

It's normally on the box - usually on a sticker with the serial number and such on.

[SuperJonty]

It's normally on the box - usually on a sticker with the serial number and such on.

Sadly, it's only the board revision number, v1.0

[SuperJonty]

I've now submitted a tech support request, but has anyone else got any idea at all? Thanks