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X670E Taichi - 192GB ram with 9950X |
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naeq 
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Joined: 20 Sep 2024 Status: Offline Points: 50 |
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 Topic: X670E Taichi - 192GB ram with 9950XPosted: 21 Sep 2024 at 1:54am |
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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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DemonAk
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Posted: 22 Sep 2024 at 11:45pm |
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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 |
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naeq
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Posted: 24 Sep 2024 at 8:38pm |
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Thanks DemonAk, I have tested the settings you wrote in every possible configuration, but unfortunately nothing works for me. I can achieve 4200Mhz with impedance + gear down, but anything higher doesn't boot.
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DemonAk
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Posted: 26 Sep 2024 at 8:25pm |
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Try ProcOdt 60 or 120 if you not POST with 48 om
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naeq
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Posted: 29 Sep 2024 at 2:32pm |
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Changing values of ProcOdt doesn't work either. Maybe something is broken on the bios side? This is the first bios on which it is possible to attach 4 sticks of ram on ryzen 9000 series, maybe in the next update they will change something for the better.
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NDRE28
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Joined: 08 Sep 2024 Location: Romania Status: Offline Points: 545 |
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Posted: 30 Sep 2024 at 4:55am |
Hello! I have the same motherboard & CPU as you do. I went with 2x32GB DDR5-6000 CL30 RAM kit. However, I had to lower the DRAM frequency to 5800MT/s, as with 6000MT/s I had some errors in MemTest86. When running 4x48GB DIMMs, it's a lot of stress that you put on the memory controller. The official supported speed in that case is 3600MT/s. You won't be able to go much higher than that! So, it's a trade between density & speed. You can't have both! I'd suggest using only 2 DIMMs, which will be faster & better in most situation. |
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DemonAk
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Posted: 19 Oct 2024 at 4:28am |
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time to test these settings:
reset all settings and set in bios: dram freq: 5200, 5400, 5600, 5800*, 6000* 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 = 1.36 VSOC = 1.22 or 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 RTT_NOM_RD = 4 RTT_NOM_WR = 4 RTT_WR = 2 RTT_PARK = 5 DQS_RTT_PARK = 5 go to AMD-->CBS-->DDR Options-->DDR Training Options and set: RX2D_TrainOpt = manual TX2D_TrainOpt = manual TX DFE Taps = 2 taps RX2D voltage step size (2^n) = 1 TX2D voltage step size (2^n) = 1 RX DFE Taps = 3 taps Memory training time will be 3:40 minutes each reboot until you enable these settings Memory Context Restore = Enabled Power Down Mode = Enabled |
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DemonAk
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Posted: 19 Oct 2024 at 9:17pm |
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Also you can try training options
go to AMD-->CBS-->DDR Options-->DDR Training Options and set: (Training time 4:10 minutes) RX2D_TrainOpt = manual TX2D_TrainOpt = manual TX DFE Taps = 3 taps RX2D voltage step size (2^n) = 1 TX2D voltage step size (2^n) = 1 RX DFE Taps = 3 taps or (Training time 4:50 minutes) TX DFE Taps = 4 taps RX2D voltage step size (2^n) = 1 TX2D voltage step size (2^n) = 1 RX DFE Taps = 4 taps or Auto (longest memory training from 9-12 minutes) RX2D_TrainOpt = auto TX2D_TrainOpt = auto TX DFE Taps = auto RX DFE Taps = auto The training time is given for 128 GB. For 192 GB it will be longer What will be better specifically for you needs to be tested |
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naeq wrote: