GA-MA790FX-DS5 and 64-bit unganged mode!

[toci]

Hello!
After I had update BIOS from F5 to F7, I see this message during POST: 64-bit unganged mode! I found FAQ and answer (http://www.gigabyte.com/support-downloads/faq-page.aspx?fid=2749) how to  resolved this problem, but now my problem is that I don't have DCTs MODE option in my new F7 BIOS! Can someone help me?
Thank you in advance!

[Dark Mantis]

It may be down to the slots that you have the memory in. Make sure that they are in the correct slots for dual channel.

[toci]

They are in the dual channel slots!!!! I have this problem earlier, before  update BIOS from F5 to F7, and in earlier BIOS I had options which descbired in Gigabyte FAQ, but in new BIOS I don't have that options!!!!

[Dark Mantis]

The only thing I can suggest is to put the BIOS back to the earlier version or try version F6

[toci]

If I back BIOS on F6 or F5, than BIOS wouldn't recognize my AMD Phenom II X3 720 BE CPU!!!

[Dark Mantis]

I think that you need to contact GTS and dump it in their laps. It sounds like a BIOS problem that will only be cured by an update.

[openmohawk]

I recently updated my BIOS to F9 to accomodate my Phoenix ll x4 940.
In my BIOS I have the option to use 'ganged' or 'unganged' modes, it state that unganged is slightly faster.
Phoenix processors have two memory contollers, in unganged mode the work independantly on each memory module.
In ganged mode the work together in interleave mode.
providing you have matched modules you should still be in 'Dual' modeP
Chech with CPUZ.
Hope this helps'

[grumpyx]

I haven't seen a F9 bios, where did you find it?