Dual Channel Ram Issue, B Slots Issue

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   Running ASROCK Z370 Killer SLI/AC MOBO and Corsair Vengeance LPX (2x8GB) DDR4 SDRAM
MOBO https://www.newegg.com/Product/Product.aspx?Item=N82E16...
Ram https://www.newegg.com/Product/Product.aspx?Item=N82E16...

I cannot get RAM to run in dual channel mode. I have check the QVL list, flashed the latest BIOS, installed it in the proper slots (A2 and B2 for dual channel according to the manual), searched for XMP profile in the BIOS, and nothing so far seems to work. The only thing I haven't tried is removing the CMOS battery or checking the CPU socket because I don't want to risk any damage or have to reapply thermal paste, re-seat cpu, and stuff unnecessarily. It won't even recognize RAM inserted in slots B1 or B2 slots at all. It only ever works in slots A1 AND A2 side-by-side and only posts as SINGLE CHANNEL. Is there an option in the BIOS? Can I run dual-channel from A1 and A2? I don't even get to the BIOS menu when I seat the RAM in either B slot...

Photo https://photos.app.goo.gl/3vpu7wrFFcidNK8B6

Can anyone tell me what is wrong? Is my motherboard defective? Please help. Thank you.

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weztmarch Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Nov 2018 Location: Pittsburgh, PA Status: Offline Points: 6	Post Options Post Reply Quote weztmarch Report Post Thanks(0) Quote Reply Topic: Dual Channel Ram Issue, B Slots Issue Posted: 27 Nov 2018 at 1:47am
	Running ASROCK Z370 Killer SLI/AC MOBO and Corsair Vengeance LPX (2x8GB) DDR4 SDRAM MOBO https://www.newegg.com/Product/Product.aspx?Item=N82E16... Ram https://www.newegg.com/Product/Product.aspx?Item=N82E16... I cannot get RAM to run in dual channel mode. I have check the QVL list, flashed the latest BIOS, installed it in the proper slots (A2 and B2 for dual channel according to the manual), searched for XMP profile in the BIOS, and nothing so far seems to work. The only thing I haven't tried is removing the CMOS battery or checking the CPU socket because I don't want to risk any damage or have to reapply thermal paste, re-seat cpu, and stuff unnecessarily. It won't even recognize RAM inserted in slots B1 or B2 slots at all. It only ever works in slots A1 AND A2 side-by-side and only posts as SINGLE CHANNEL. Is there an option in the BIOS? Can I run dual-channel from A1 and A2? I don't even get to the BIOS menu when I seat the RAM in either B slot... Photo https://photos.app.goo.gl/3vpu7wrFFcidNK8B6 Can anyone tell me what is wrong? Is my motherboard defective? Please help. Thank you.

CRAZG Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Oct 2018 Location: New Zealand Status: Offline Points: 3	Post Options Post Reply Quote CRAZG Report Post Thanks(0) Quote Reply Posted: 07 Dec 2018 at 10:36am
	2nd and 4th slots from the cpu, then select ram speed in bios. RAM frequency in cpu-z will show half the RAM speed as it is ddr.
	Cheers