Question Issues wit my recent upgrade

[Synkmaster1996]

So , my pc parts are ( i7 6700k, asus h270 plus, 4 sticks of 4gb corsair vengeance lpx, asus strix 3 r9 390, SSD Kingston V300 SATA 120Gb , 1 m2 2280 500 gb, 1 hdd 2tb barracuda, Cooler CoolerMaster Hyper 412S , EVGA Supernova B2 750W 80 Plus Bronze Modular , all of that inside a nzxt noctua 450).
Im having a problem in which i have those 4 sticks of ram, they all work individually , but never 3 at a time nor 4 and they onyl work 2 at the same time when in the 1st and 4th dimm slots. Any idea whats causing this?
Greatly appreciate all the feedback.

 

[rgd1101]

were they come from 1 kit or 2 kit?

 

[Synkmaster1996]

were they come from 1 kit or 2 kit?

From 2 separate kits

 

[rgd1101]

How To - Troubleshooting problems with PC memory (RAM) and XMP profile configurations

In the beginning, there was......BIOS Before you go ANY further, go to the manufacturer product page for your specific motherboard model AND revision. Revision is an important aspect because for any given motherboard there may be more than one version of that model which will be identified...

forums.tomshardware.com

read the section on mixing kit

 

[Synkmaster1996]

So, I've read all of that and I still have one question, my rams they run alone in every single slot and I can also boot with any of them on the 1st and 4th slot, all four rams combined in 2s on those 2 slots no problem.

How To - Troubleshooting problems with PC memory (RAM) and XMP profile configurations

In the beginning, there was......BIOS Before you go ANY further, go to the manufacturer product page for your specific motherboard model AND revision. Revision is an important aspect because for any given motherboard there may be more than one version of that model which will be identified...

forums.tomshardware.com

read the section on mixing kit

 

[rgd1101]

the slot 2,3 doesn't work with any stick of ram. it the motherboard or cpu. check for bend pin on the socket?

 

[Synkmaster1996]

the slot 2,3 doesn't work with any stick of ram. it the motherboard or cpu. check for bend pin on the socket?

All the rams work in all slots individually and all the rams work in slot 1 and 4 that's all .

 

[rgd1101]

return the new set
but 4x4GB kit

 

[Synkmaster1996]

return the new set
but 4x4GB kit

But it doesn't make any sense , how can the rams work individually and together when in the 1st and 4th slots but can't work in the others?