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CMK16GX4M2B3200C16 Won't Run at rated speed.


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CMK16GX4M2B3200C16

ASUS ROG Strix B550-I

Bios Version 1803

2021/02/08

NOT BETA

 

CPU

4700g

 

Refuses to Boot under D.O.C.P profile for rated 1600 MHZ Speed.

Works fine at Auto. DDR4-2132 (1066MHZ)

 

What do I do to make this run at DDR4-3200?

Edited by flagrant99
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Motherboard: ASUS ROG Strix B550-I

RAM: Corsair CMK16GX4M2B3200C16

 

On my older Ryzen CPU DOCP (Same as XMP) ii nasus bios worked fine and ran my RAM at DDR4 3200MHZ 16-18-18-36 Like it says on the ram sticker.

 

Upgraded by CPU to a Ryzen 4700g. DOCP does not POST.

Load Default Settings with no change runs @2133 MHZ.

 

If I dial in RAM speed to 3200Mhz. It works. But Cas Latency is at 22 Now.

 

If I can tighten timings in any way let me know.

After reboot I get the following.

 

 

DRAM CAS # Latency (CL) 22

Trcdrd 22

Trcdwr 22

DRAM RAS # PRE Time 23

DRAM RAS # ACT Time 53

Back Cycle Time (tRC) 76

Trrds 6

TrrdL 9

Tfaw 34

TwtrS 4

TwtrL 12

Twr 24

Trcpage 0

TrdrdScl 5

TwrwrScl 5

Trfc 50

Trfc2 416

Trfc4 256

Tcwl 18

Trtp 12

Trdwr 11

Twrrd 1

TwrwrSc 1

TwrwrSd 6

TwrwrDd 6

TrdrdSc 1

TrdrdSd 4

TrdrdDd 4

Tcke 8

ProdODT Auto

Cmd2T Auto

Gear Down Mode Auto

Power Down Enable Auto

RttNom Auto

RttWr Auto

RttPark Auto

MemAddrCmdSetup Auto

MemCsOdtSetup Auto

MemCkeSetup Auto

MemCadBusClkDrivStren Auto

MemCaasBusCsOdtDrvStren Auto

MemCasBusCkeDrvStren Auto

Mem Over Clock Fail Count Auto

 

VDDCR SOC 1.1V

DRAM Voltage 1.35 V

DVVP Voltage 0.900V

VTTDDR Voltage 0.675V

VPP_MEM Voltage 2.500V

VDDO Standby Voltage 0.900V

 

 

I tried just fixing the top 6 #’s to 16 18 18 18 36, and Bumped SOC offset to + .1 and VDDP to 1.0 from .9

No Post. Any ideas let me know.

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  • Corsair Employees
Motherboard: ASUS ROG Strix B550-I

RAM: Corsair CMK16GX4M2B3200C16

 

On my older Ryzen CPU DOCP (Same as XMP) ii nasus bios worked fine and ran my RAM at DDR4 3200MHZ 16-18-18-36 Like it says on the ram sticker.

 

Upgraded by CPU to a Ryzen 4700g. DOCP does not POST.

Load Default Settings with no change runs @2133 MHZ.

 

If I dial in RAM speed to 3200Mhz. It works. But Cas Latency is at 22 Now.

 

That statement, especially the bolded part, shows the issue is going to be a limitation of the integrated memory controller on the 4700G CPU. What was your previous CPU?

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AMD 3200g APU.

 

I tried some G Skill ram from my desktop and that ran at DOCP 1600MHz.

 

Tried latest beta firmware from asus no change.

Also checked QVL and the corsair ram is on there twice but for some reason it shows ver 4.23 instead of 4.32?

 

https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b550-i-gaming-model/helpdesk_qvl_memory

 

QVL.jpg?attachauth=ANoY7cpBsVzYHpKzfBGHRkDSLYkinZZtxmLihcbdg3MvA50MkDr8FjVEH2If9zlqCvBda2E1HBFstMlS3ACUrJNK_T-9c7E20Z6UD45B7_cVEV2jlp2IiuT5DrTMengW8pNR9AoIgltNSqco9wx2fdHxDEw8dhmb3pgJjGiWvArU7eZxtdd16A9IN77Fh87tVMK-k7qPX4OGhAk946VI61l5U6ThcGfvNW-jMBbSmjKtxnMdWJUC7Qaip57btZinRP5Ytd20dVJw&attredirects=0

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