Hi,
 
yesterday I got my new X79 Dark.
After installing my other hardware I the PC didn't boot. On the board the POST Code b0 is finally shown.
The hardware in summary is:
 
Mainboard: X79 Dark
Processor: i7-3930K
RAM: G.Skill F3-12800-CL9D-8GBXL (4 Kits with 4GB on each module - at the moment 16 GB installed; Slots 1,3,5,7)
Graphiccard: Asus 670 GTX (2x - 1 mounted)
Power: beQuiet Dark Power Pro with 850 W
 
Result: POST Code b0
 
I can't tell you which Bios-version is present as the board did never boot up until now.
 
When everything is installed the POST Code changes to b7 (all RAM and second 670 GTX).
 
Does anybody have an idea what I'm doing wrong or what may be corrupt?
 

Thanks for your help bdary.
I changed to the second Bios and cleared the CMOS. After that the b0 came up again and the PCI-express lights one to five were blinking red.
I was not able to access the BIOS and therefore also not able to log on to Windows.
 
Edit: I have a set of Ripjaws (16 GB - F3-10666CL9Q) - do you think it would make sense to use them instead?

Check with One Memory Stick as bdary  says above. Check in the Memory Slot 1 
B0 = CPU Memory controller configuration
 
 

F3-10666CL9Q-16GBRL Dual Channel Kit
EVGA       Z87       EVGA Z87 Classified     EVGA Z87 FTW     EVGA Z87 Stinger
 
F3-12800CL9D-8GBXL  Dual Channel Kit
EVGA      Z87       EVGA Z87 Classified     EVGA Z87 FTW     EVGA Z87 Stinger
 
Could it be that this memory is not supported?
It looks like the memory that you have is for the Z87 and not the X79, yes some will work or may work but it us best to use memory for the Chip Set that you have.
For the X79 Dark take a look here http://www.gskill.com/en/configurator?manu=60&chip=28&model=1489
 
When you see F1 or F2 after a CMOS Clear Press the F1 Function Key, this should take you in the Bios after Holding down the Red Button for 3 or 4 Seconds.

The small blinking lights by the PCI-e lanes is normal during boot up.  They will be a steady red or green once booted into Windows.
 
From everything mentioned so far and what bcavnaugh has pointed out about your ram, I would think that is most likely why you're not able to boot.
 
Is it too late to return your 4 kits and pick up a quad channel kit that's on either EVGA's compatibility list or on the list at G.Skill??
 
 
This is just my opinion.  Do some more research on it or wait awhile longer to see if anyone else comes in with a new idea.  Up to you.

rjohnson11
Just out of curiosity does your keyboard respond to get into the BIOs?

Yes, it does respond with a beep and the screen went black afterwards on each try.

rjohnson11
If not do you have another keyboard to try?

I tried with two keyboards, one Microsoft Keyboard and one Gigabyte Aivia, both with the same result.

rjohnson11
If you use only one stick of memory does the PC boot into the screen where it asks you to press F1 or F2?

Yes, in both cases (RAM) - but it doesn't continue. (Post #6 in this thread)
 
Edit

bdary
Is it too late to return your 4 kits and pick up a quad channel kit that's on either EVGA's compatibility list or on the list at G.Skill??

The RAM was here before I bought the board and I relied on the list  - I did not see too much difference in the size of the single modules, that's all.

bdary
This is just my opinion. ...

Sure, no one can guarantee that it will work for me afterwards and that is what I requested - but I also expect some degree of honesty. That is why I asked a second time.
As a reasonable person each of us must know what he/she does, but I don't want to spend money and end up in the same situation again.
So please continue to advise.
 

Both keyboards are USB and were directly attached to the board (back of the PC). The lights are also turning on and they stay on (e.g. NUM Lock). I don't know with which one of the keyboards, but with one I waited for a very long time during the period I was answering here.

Yes. They were both attached below/left from the bluetooth-device - was that a mistake?
(They were not attached at the same time.)

There are 6 USB 2.0 ports and 4 USB 3.0 ports.  The 2.0's are black in color, 3.0's are blue.
 
I hear you about not wanting to spend money on anything to later find out you have the same issue.  But if you end up at the point where nothing else solves your issue, and now you might have to spend some money, I would start with the ram.
 
As far as you relying on the ram compatibility list, what you bought may be similar to what's on the list, but ram kits are tested in sets.  Ram mfgr's guarantee a paticular "set" will run at rated speed with rated voltage and timings.  When you start combining kits to run together, that goes out the window.  It becomes a crap shoot.  Sometimes they work together, sometimes not.  Hit or miss.
 
I hope you're able to solve this without spending any more money...