Adding 4 sticks of RAM in Quadchannel slot, mobo supports quadchannel but processor doesnt?

[supermanu15]

I have a question, what happens if let's say a motherboard with 4 slots(a pair of different colors) which means the board can support quadchannel but what happens if you populate all the slots but the CPU itself doesnt support quadchannel?

 

[bignastyid]

What motherboard and cpu? Just because a board has 4 slots doesn't mean it supports quad channel.

 

[supermanu15]

What motherboard and cpu? Just because a board has 4 slots doesn't mean it supports quad channel.

a board with 4 slots(2 pairs of different colors let's say 2 are black and the other 2 are grey) supports quad channel right, while a board with 4 slots of the same color(let's say all of them are black) supports 4 slots in dual channel mode, any board in general with the characteristics i mentioned

 

[supermanu15]

but my chosen CPU is the i5-4690

 

[MeanMachine41]

Quad channel kits are more expensive and not worth it and if the CPU don't support it then you have wasted your money and the little difference it makes for performance wise . Differing colored 4 slots on the MB does not make it quad channel.

 

[bignastyid]

"2 pairs of different colors let's say 2 are black and the other 2 are grey) supports quad channel right"
Actually that's most likely dual channel not quad. Currently the only 2 consumer level chipsets that support quad channel are Intel X79 and X99 boards and iirc all the cpus that work on those boards support quad channel.

 

[bignastyid]

There are no socket 1150 boards or cpus that support quad channel operation only dual. You can buy a quad channel kit to fill all 4 slots but the ram will only run in dual channel mode.

 

[MeanMachine41]

but my chosen CPU is the i5-4690

The i5 4690 has 2 memory channels and supports memory types DDR3-1333/1600MHz

 

[supermanu15]

thanks guys for your inputs learned something new, let's say this is the board that i chose:
http://www.lazada.com.ph/gigabyte-ga-b85m-d3h-motherboard-6139059.html

If i pop in an i5-4690 in there and populate all the slots with the same avexir ram i have, will it run in dual channel mode at 16GB?

 

[supermanu15]

How about this one?
http://www.asrock.com/mb/intel/b85m%20pro3/

 

[photonboy]

How about this one?
http://www.asrock.com/mb/intel/b85m%20pro3/

all the cheaper boards are Dual Channel. There's also no advantage to Quad Channel unless you've got a much higher-end CPU and even then only under certain applications.

If you want 16GB of memory, just get a 2x8GB kit and use the recommened slots (possibly #2 and #4) as per the manual.

Populating ALL the slots just means each set is in Dual Channel. So 4x4GB is the same as 2x8GB for performance and capacity.

See partpicker but I'd get a 2133MHz CL9, 2x8GB kit. maybe CORSAIR

Update: wrong kit....

 

[MeanMachine41]

thanks guys for your inputs learned something new, let's say this is the board that i chose:
http://www.lazada.com.ph/gigabyte-ga-b85m-d3h-motherboard-6139059.html

If i pop in an i5-4690 in there and populate all the slots with the same avexir ram i have, will it run in dual channel mode at 16GB?

The Gigabyte GA-B85M-D3H Motherboard is for Memory: 4x DDR3-1600/1333 DIMM Slots, Dual Channel, Non-ECC, Max Capacity of 32GB and so is the ASRock B85M Pro3

Your sytem specs indicate 8GB ram and if you want more say 16GB then its best to get a single 16GB kit at 1600MHz and keep your others for spares.

 

[photonboy]

http://pcpartpicker.com/product/KQ4gXL/gskill-memory-f32133c9d16gxh

that's an example.
If you have 2x4GB already you can get an IDENTICAL kit. Sometimes they change the manufacturing so the same MODEL is slightly different which can screw up detection but it is likely to be okay, and if not usually a couple tweaks can fix that.

No matter what, run www.memtest86.com for a full pass

(And no, you aren't limited to 1600MHz. See the motherboard page)

 

[supermanu15]

hanks a lot guys for your inputs

 

[supermanu15]

Populating ALL the slots just means each set is in Dual Channel. So 4x4GB is the same as 2x8GB for performance and capacity.

So populating all the RAM slots in the gigabyte board i chose would work at 16GB? Because I want to keep and reuse my Avexir RAM, and planning to buy another pair of 4GB

 

[supermanu15]

I'll consider this closed, thanks guys for your inputs!