Dual channel mode issue

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   Dear pan883,

Greetings, this is ASRock TSD.

About your question, we may not suggest such memory installation method which installed another two DIMMs a kit x2 so that the 4 DIMMs are not in the same package.
For such memory installation, the system may encounter some unpredicted issues such as incompatibility, loss DIMM, no POST and so on??/div>As a result, we strongly recommend installing 4 DIMMs a kit module on the system.
These memory modules have been tested by memory vendor and make sure the memory controller are compatible with each other?�s and also have the same quality.

We also list the memory module which can support 4 DIMMs. 
Please refer to the memory QVL and then choose suitable device.
http://www.asrock.com/mb/AMD/Fatal1ty%20X370%20Gaming%20X/index.asp#Memory

Thanks!

All the best,
ASRock TSD

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ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8787	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Topic: Dual channel mode issue Posted: 03 Nov 2017 at 2:54pm
	Dear pan883, Greetings, this is ASRock TSD. About your question, we may not suggest such memory installation method which installed another two DIMMs a kit x2 so that the 4 DIMMs are not in the same package. For such memory installation, the system may encounter some unpredicted issues such as incompatibility, loss DIMM, no POST and so on??/div> As a result, we strongly recommend installing 4 DIMMs a kit module on the system. These memory modules have been tested by memory vendor and make sure the memory controller are compatible with each other?�s and also have the same quality. We also list the memory module which can support 4 DIMMs. Please refer to the memory QVL and then choose suitable device. http://www.asrock.com/mb/AMD/Fatal1ty%20X370%20Gaming%20X/index.asp#Memory Thanks! All the best, ASRock TSD

datonyb Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 11 Apr 2017 Location: London U.K. Status: Offline Points: 3139	Post Options Post Reply Quote datonyb Report Post Thanks(0) Quote Reply Posted: 01 Nov 2017 at 4:01am
	yes ultimately the 4 sticks will not reach as fast a speed as ultimately 2 sticks will may i point out you are already running dual channel mode (well at least you should be with 2 sticks anyway) you might get lucky and get all 4 to run 3200 you might not 4 sticks has a big fat disclaimer that it wont work fast but theres plenty of people running 4 sticks at 3200 or greater this depends firstly on what ram you use then the cpu's imc (controller) and also the motherboard and its ability
	[url=https://valid.x86.fr/jpg250][/url] 3800X, powercolor reddevil vega64, gskill tridentz3866, taichix370, evga750watt gold

MisterJ Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 19 Apr 2017 Status: Offline Points: 1097	Post Options Post Reply Quote MisterJ Report Post Thanks(0) Quote Reply Posted: 31 Oct 2017 at 11:20pm
	pan883, there are real memory experts here, but not I. I suspect the sticks will work at least at the SPD speed but maybe not XMP without tuning. Hopefully the experts will comment soon. In the meantime, please post your specifications in your signature as I have and include your BIOS and OS versions and power supply. Enjoy, John.
	Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD

pan883 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 06 Aug 2017 Status: Offline Points: 6	Post Options Post Reply Quote pan883 Report Post Thanks(0) Quote Reply Posted: 31 Oct 2017 at 5:55pm
	Hi, Recently I bought Fatal1ty X370 Gaming X,AMD Ryzen 7 1700 and 2 RAM kits - G.Skill Flare X BLACK DIMM Kit 16GB F4-3200C14D-16GFX. After few days I want to install 2 more memory on my board. Will it get any problem or other issue?