Quad channel memory question?

X x X · 10 Oct 2018 at 18:40

My mobo has 8 slots for ram right? It can support 64gigs (asus x99-a) .. same as my cpu(5820k)
Nowwwww... everyone online states that quad channel = 4ram slots populated right...
So i dont get it...
If i fill up every slot.. then i get dual quad channel???
I always assumed that 2 slots filled = single channel ...

Also with haswell-e .. i got a L binned chip... whats the averageish memory overclock i can hit.. there is no point me buying 3600mhz sticks just having to refund them...

Does haswell e scale with higher memory frequency?

LuckyBenski · 10 Oct 2018 at 18:54

You can have two sticks of ram in one channel, like on Z87/Z97 boards for instance. I believe it's called ddual rank. So 4 sticks in a dual channel mobo would be "dual channel, dual rank".

Might be bank instead of rank, thinking about it...

X x X · 10 Oct 2018 at 19:02

Ye i got a dual rank stick right now.... its not aiding performance much... crysis 3 stutters bad with one stick of ram

tamzzy · 10 Oct 2018 at 19:12

dual rank/single rank ram doesnt matter

1 stick - single channel
2 stick - dual channel
4 stick - quad channel
6 stick ???
8 stick - quad channel

LuckyBenski · 10 Oct 2018 at 20:03

tamzzy said:
dual rank/single rank ram doesnt matter

1 stick - single channel
2 stick - dual channel
4 stick - quad channel
6 stick ???
8 stick - quad channel

Depends on the chipset and CPU. 8700k is dual channel. 4 sticks = still dual channel.

LuckyBenski · 10 Oct 2018 at 20:04

Double post

Armageus · 10 Oct 2018 at 20:44

tamzzy said:
dual rank/single rank ram doesnt matter

1 stick - single channel
2 stick - dual channel
4 stick - quad channel
6 stick ???
8 stick - quad channel

6 sticks = Quad Channel on X99-A

https://dlcdnets.asus.com/pub/ASUS/mb/LGA2011/X99-A/E10088_X99-A_UG_V3_U_for_web_only.pdf

tamzzy · 10 Oct 2018 at 21:25

LuckyBenski said:
Depends on the chipset and CPU. 8700k is dual channel. 4 sticks = still dual channel.

indeed.

but...

X x X said:
(asus x99-a) .. same as my cpu(5820k)

hence:

tamzzy said:
1 stick - single channel
2 stick - dual channel
4 stick - quad channel
6 stick ???
8 stick - quad channel

X x X · 10 Oct 2018 at 23:15

tamzzy said:
dual rank/single rank ram doesnt matter

1 stick - single channel
2 stick - dual channel
4 stick - quad channel
6 stick ???
8 stick - quad channel

So if i populate 8 slots right...
4 will be quad channel and the other 4 will be ...nothing???

tamzzy · 10 Oct 2018 at 23:33

X x X said:
So if i populate 8 slots right...
4 will be quad channel and the other 4 will be ...nothing???

No. It'll still be quad.

X x X · 11 Oct 2018 at 01:10

tamzzy said:
No. It'll still be quad.

Which sticks are quad channel then...

LuckyBenski · 11 Oct 2018 at 01:12

X x X said:
Which sticks are quad channel then...

2 sticks per channel.

X x X · 11 Oct 2018 at 13:40

LuckyBenski said:
2 sticks per channel.

So then 4 sticks is dual channel.......

d_brennen · 11 Oct 2018 at 13:46

Jebus.

Not your board in particular but just to illustrate. 4 sticks, 1 in Channel A, B, C and D would be quad channel

X x X · 11 Oct 2018 at 13:48

d_brennen said:
Jebus.

Not your board in particular but just to illustrate.

Thats what i assumed too, but everyone online tells me 4slots = quad

d_brennen · 11 Oct 2018 at 13:50

Your manual will state which slots belong to which channel. You want to populate all 4 channels to get the most from your system. Crysis stuttering could be down to GPU or even storage, I doubt it's memory bandwidth related

Armageus · 11 Oct 2018 at 14:48

d_brennen said:
Your manual will state which slots belong to which channel.

It's almost like reading the manual to the Op's board, that I posted above would offer a solution
https://forums.overclockers.co.uk/posts/32187760

:confused:

X x X · 11 Oct 2018 at 16:26

d_brennen said:
Your manual will state which slots belong to which channel. You want to populate all 4 channels to get the most from your system. Crysis stuttering could be down to GPU or even storage, I doubt it's memory bandwidth related

Ye i ran the game on its lowest settings e.c.t still got huge stutters..

Ill try it again soon,

Ye i think my manual said i have to populate all slots... dont remember

Armageus · 11 Oct 2018 at 16:43

X x X said:
Ye i think my manual said i have to populate all slots... dont remember

I've linked your manual above - You need to use slots A1,B1,C1,D1 for 4 sticks in quad channel.

Between single and dual channel is at best a 10% improvement for gaming - between dual and quad I expect the difference would be even less, certainly won't be the cause of the stuttering

X x X · 11 Oct 2018 at 16:57

Armageus said:
I've linked your manual above - You need to use slots A1,B1,C1,D1 for 4 sticks in quad channel.

Between single and dual channel is at best a 10% improvement for gaming - between dual and quad I expect the difference would be even less, certainly won't be the cause of the stuttering

Honestly.. it could be the fact i used the cracked version of the game.... or windows 10 insider build bugs... there were a lot

Thanks for linking me by the way...
Could u check my psu question thread too if u get time thanx