Help - GA-Z170XP-SLI won't post with G-Skill dual channel memory

[acedl]

Hey all,

Need some help out of ideas....

The GA-Z170XP-SLI LGA1151 motherboard. It will not post with the G-Skill F4-2133C15D-8GVR memory in the dual channel slots. ( 2x4GB)

We tested all 4 slots with a single stick and its posts.The memory runs in dual channel on another Asrock z170 Pro4S no issues, but that board if plagued with USB issues.

The memory auto detects 1 stick at the correct timings.

Running the F5 bios at the moment. Also can't see to find the XMP profile settings.

Is it the BIOS version or motherboard?

Cleared CMOS did all those tricks. Any ideas?

Is something easy I am missing?

If you have a moment to help, I would great appreciate it.

Thanks,

acedl

Model Name GA-Z170XP-SLI(rev.1.0)
BIOS Ver.F5
Purchase Dealer Frys
VGA Brand other -
VGA Model EVGA
CPU Model i5 6500 Skylake
CPU Part No. BX80662I56500
Memory Brand Gskill
Memory Part No. F4-2133C15D-8GVR
Memory Size 2x4GB
Power Supply 600
Operating System Win 7 64-bit
Service Pack 2

 

[gskill support]

So single sticks will work fine but 2 or more does not? Most likely a defective motherboard