Ram slot issue! Need help!

[Ryan Kirby]

I have built over 10 computers and repaired many others and can't figure this one out.

So sockets 1,2, and 4 worked as long as only one stick was in. 3 did not work on its own. 3 did not work on its own. And 1/3 and 2/4 did not work when two sticks were installed.

So can we call this a bad motherboard? Or is there a bios setting that needs to be changed?

Thank you ahead of time for your help

SPECS

Intel i5 6600k
ASROCK Z170 Fatality Gaming K4 Motherboard
8gb (2x4) Ballistix RAM 2400mhz DDR4
480GB SSD
Thermaltake SMART 550W PSU

 

[BadActor]

I would RMA it for the simple fact the 3rd slot is not working. However, your board may just be finicky, you could try another kit of RAM in slots 2 and 4 and see if that works. My own board doesn't like a 16 GB kit of Crucial, but works well with an 8 GB kit of the same model. I'm seeing a trend with Skylake boards or processors being more picky about RAM than the last couple of generations.

 

[geofelt]

Read the motherboard manual.
Some motherboards require a specific slot to be used if only one stick is installed.

If slot 3 alone is supported, I would conclude you have a slightly defective motherboard and you should return it.

If your two sticks are not from the same kit, all bets are off, they need to be a matched kit usually.

 

[Ryan Kirby]

Read the motherboard manual.
Some motherboards require a specific slot to be used if only one stick is installed.

If slot 3 alone is supported, I would conclude you have a slightly defective motherboard and you should return it.

If your two sticks are not from the same kit, all bets are off, they need to be a matched kit usually.

I have tried every combination of slots, with single and dual channel. And it is a matching kit. I am starting to think I need to take this back to micro center. Such a pain.