X670E Taichi - 192GB ram with 9950X

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   Hello,

My system:
Ryzen 9 9950X
AsRock X670E Taichi

I have two kits of Corsair 2x48gb 6600MHz CL32 (CMK96GX5M2B6600C32) (192gb in four sticks). With bios 3.06 motherboard didn't even boot (Error code: EC), but with new bios 3.08 (with AGESA 1.2.0.2) I have successfully booted with 192gb of ram. The problem is, everything works with XMP and 3600Mhz or 3800MHz, but anything higher does not pass ram training.

I have tried changing the impedance, like here:

https://www.reddit.com/r/Amd/comments/159xoao/stable_128gb4x32gb_ddr56000_cl30_on_agesa_1007b/

https://youtu.be/NtMIppL9UC4

but nothing works. Is there anything i can do? 

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naeq Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Sep 2024 Location: Poland Status: Offline Points: 20	Post Options Post Reply Quote naeq Report Post Thanks(0) Quote Reply Topic: X670E Taichi - 192GB ram with 9950X Posted: 21 Sep 2024 at 1:54am
	Hello, My system: Ryzen 9 9950X AsRock X670E Taichi I have two kits of Corsair 2x48gb 6600MHz CL32 (CMK96GX5M2B6600C32) (192gb in four sticks). With bios 3.06 motherboard didn't even boot (Error code: EC), but with new bios 3.08 (with AGESA 1.2.0.2) I have successfully booted with 192gb of ram. The problem is, everything works with XMP and 3600Mhz or 3800MHz, but anything higher does not pass ram training. I have tried changing the impedance, like here: https://www.reddit.com/r/Amd/comments/159xoao/stable_128gb4x32gb_ddr56000_cl30_on_agesa_1007b/ https://youtu.be/NtMIppL9UC4 but nothing works. Is there anything i can do?

DemonAk Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Apr 2018 Status: Offline Points: 61	Post Options Post Reply Quote DemonAk Report Post Thanks(0) Quote Reply Posted: 3 hours 45 minutes ago at 11:45pm
	reset all settings and set in bios: dram freq: 5200 or 5400 or 5600 dram timings: all auto DFE Read Training = Enabled Gear Down Mode = Enabled Once stability is found, you can turn these back to Enabled: Memory Context Restore = Disabled Power Down Mode = Disabled voltages: VDDIO = VDD = VDDQ = 1.2 or 1.25 or 1.3 or 1.35 VSOC = 1.25 VDDP = auto VDDG CCD/IOD = auto VDD Misc = auto Infinity Fabric = 2000 UCLK = MEMCLK bus configuration: ProcOdt = 48 ProcCaDs = 30 ProcDqDs = 34.3 DramDQDs = 34 or 40 RTT_NOM_RD = 5 RTT_NOM_WR = 4 RTT_WR = 2 RTT_PARK = 4 DQS_RTT_PARK = 5 or RTT_NOM_RD = 4 RTT_NOM_WR = 4 RTT_WR = 2 RTT_PARK = 5 DQS_RTT_PARK = 5 or RTT_NOM_RD = 5 RTT_NOM_WR = 5 RTT_WR = 2 RTT_PARK = 5 DQS_RTT_PARK = 6 Also try RTT_WR = 1 go to AMD-->CBS-->DDR Options-->DDR Training Options and set: RX2D_TrainOpt = manual TX2D_TrainOpt = manual TX DFE Taps = 1 taps RX2D voltage step size (2^n) = 1 TX2D voltage step size (2^n) = 1 RX DFE Taps = 1 taps