Two dual channel kits, how to ensure they work?

Neil9426 · Jan 15, 2016

I have learnt that quad channel kits are verified to work together while using two dual channel kits for a quad channel platform might cause errors.
But what if I manually set all four of them, running at the same frequency and timings, which works fine with each one of them on its own? Can I be sure they work as quad channel?
I am using two trident z now for my z170 and I am going for X99, I really want to save some money and not waste my ram.
Thanks.

GhislainG · Jan 15, 2016

Honestly I doubt they really are tested together, but they have the same exact specs and the serial numbers usually are consecutive. Install them and run Memtest86+ and Windows Memory Diagnostics; if they all pass, then you should have no issues.

Neil9426 · Jan 15, 2016

GhislainG :

most having error do have 4 perfect ram sticks individually, they just dont work for quad channel, i wonder if thats because auto setting or xmp make them different.

Leaps-from-Shadows · Jan 15, 2016

Older dual-channel kits and newer dual-channel kits (even if the same exact brand and model number) will likely have very different timing settings. You will have to manually set the timings to the highest values. And you may need to increase the RAM voltage a tiny bit.

Tradesman1 · Jan 15, 2016

I cover this in items 2 and 6 in this article

http://www.tomshardware.com/reviews/ddr-dram-myths,4155.html

Neil9426 · Jan 16, 2016

Tradesman1 :

it seems it is possible to manually set them to work in your article. so my question remains. how exactly?

GhislainG · Jan 16, 2016

Could you provide the specs of both kits? CPU-Z could be used to check the SPD.

Neil9426 · Jan 16, 2016

GhislainG :

havent bought yet cause i am not so sure about it, but the trident z is rather new model so the new kit i buy should be almost the same

GhislainG · Jan 16, 2016

You already own one kit and you want to buy another one? If it's quite new, then they may be the same, but you can't be sure until you get it. My understanding is that your question is purely hypothetical since you haven't yet tried them. I'm using 2 kits in a system, but I bought them at the same time to make sure they are identical (serial numbers very close).

Neil9426 · Jan 16, 2016

GhislainG :

so your quad channel works simply with xmp?

GhislainG · Jan 16, 2016

XMP-1600; my modules are CML16GX3M2A1600C10 dated 24/12 and they are stable, i.e., no system crash in 3 years running Windows Server 2012 Hyper-V and several VMs 24x7.

Tradesman1 · Jan 16, 2016

You said you are using Trident Z, what model #? Also what CPU and mobo model are you planning on?

Neil9426 · Jan 19, 2016

Tradesman1 :

I found another kit with similar S/N luckily. They are F4-3200C 16D-16GTZB. I am going to use asrock X99m-killer and 5820k.

GhislainG · Jan 19, 2016

Close S/N or similar P/N?

Tradesman1 · Jan 19, 2016

If you get them and have problems, give a shout and we can try timings/voltage adjustments

Neil9426 · Jan 19, 2016

GhislainG :

whats P/N?

Neil9426 · Jan 19, 2016

Tradesman1 :

Thank you. I will try them as soon as I get the cpu. I'm looking for a oc proved one.

Two dual channel kits, how to ensure they work?

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