z170 Extreme 4+ G.Skill 2800 No Dual Channel

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   Hi,
is something wrong with this RAM or is the board really not supporting this chips ?
I can only run these things in singlechannel. 

2x 8GB G-Skill RipJaws F4-2800C16D-16GRR
Tested A2+B2 and A1+B1
Both Modules are running in A1+A2 singlechannel

BIOS 1.50 
I5 6600K
GTX760

Dr.Debug loops with 00 19 4C
CMOS was cleared.
With Bios 1.0, fresh from the BOX i had Post-code 55 in A2+B2

Thx for help

Edited by Akela - 09 Oct 2015 at 2:58pm

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Akela Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Oct 2015 Location: Germany Status: Offline Points: 4	Post Options Post Reply Quote Akela Report Post Thanks(0) Quote Reply Topic: z170 Extreme 4+ G.Skill 2800 No Dual Channel Posted: 09 Oct 2015 at 4:26am
	Hi, is something wrong with this RAM or is the board really not supporting this chips ? I can only run these things in singlechannel. 2x 8GB G-Skill RipJaws F4-2800C16D-16GRR Tested A2+B2 and A1+B1 Both Modules are running in A1+A2 singlechannel BIOS 1.50 I5 6600K GTX760 Dr.Debug loops with 00 19 4C CMOS was cleared. With Bios 1.0, fresh from the BOX i had Post-code 55 in A2+B2 Thx for help Edited by Akela - 09 Oct 2015 at 2:58pm

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 Posted: 16 Oct 2015 at 7:31pm
	Dear customer, Thank you for the query. We provide some suggestions for try: 1. Due to the memory controller is located in CPU, please reinstall the CPU and check whether there's any bent or broken pins in CPU socket. 2. If possible, please use another CPU or memory to verify. 3. If possible, please install the memory to another motherboard to verify. Kindest regards, ASRock TSD Edited by ASRock_TSD - 16 Oct 2015 at 7:33pm

excaliburn92 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 19 Sep 2015 Status: Offline Points: 11	Post Options Post Reply Quote excaliburn92 Report Post Thanks(0) Quote Reply Posted: 16 Oct 2015 at 9:51pm
	If they don't run in dual channel even after trying all the slots and they work fine in single channel mode , then it's probably the RAM. See if you can get a replacement.

Akela Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Oct 2015 Location: Germany Status: Offline Points: 4	Post Options Post Reply Quote Akela Report Post Thanks(0) Quote Reply Posted: 19 Oct 2015 at 2:39pm
	Thanks, i've send all back to the dealer. (mindfactory) They said, CPU and RAM seems to be ok, got a new board. will see