**[OFFICIAL]** GIGABYTE Z77X Owners Club/Discussion/Info (All Model's Welcome)

[vailr]

I've built 4 ud5h machines all with the memory in slots 1 & 2 according to the MANUAL and they all work fine.
Therefore: You must have a defective board.
Gigabyte has a little better idea about how they manufacture their boards then the cpu-z crew does. again the manual is 100% correct.

Also if you look at the pictures I posted, the ram slots are numbered the same as in the manual on the pcb between the msata connector and the 4th ram slot.
http://www.xtremesystems.org/forums/...=1#post5107851

Thanks for the info & photo concerning the 2 UD5H board versions.
My UD5H board shipped about 2 weeks ago from Newegg with the F4 bios, and is the board version with the blue caps and a space in the middle of the DDR3 slots.
Initially: would not, could not boot if DDR3 slot 1 was occupied. Have since updated the bios to version F9e(beta), and the machine is now bootable with slots 1 & 2 occupied. At the same time: CPU-Z [version 1.61 x64] shows slots 2 & 4 as being the numbering.
So: for those with the (older?) "blue cap version board", I would still suggest ignoring the printed manual's "use slots 1 & 2" advice, and instead only use slots 3 & 4. Update to the latest bios version, and then see if "use slots 1 & 2" will work.

Does anyone know how to "force update" the backup bios? Had an instance of a corrupted bios, and the system subsequently used the F4 backup bios to automatically return the Primary bios to version F4.

Also: bios version F9h(beta) is now available. I'll be staying with F9e until F9(final) is available.