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b550m tuf gaming ram training problems

duncan088
Level 7

‎09-09-2021 06:37 AM - last edited on ‎03-05-2024 06:54 PM by Community Admin

I hva a b550m gaming plus, 5600x, and a 4000mhz cl18 SR b die memory, a low bin one.
No matter what frecuency i put 3000 to 4000 it will not but if i put trfc lower than 540 and if i put on auto i will say 312 on bios but 666 (yes) on windows.
I try my older afr kit that works at 3400 cl14 17 17 17 trfc 420, and wont boot on this motherboard only on auto at 666.
What can i do to fix training ram. I using lastest bios.
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4 REPLIES 4

RedSector73
Level 12

‎09-09-2021 06:58 AM

Are you using from the CPU slots 2 & 4 (A2 & B2)
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duncan088
Level 7
In response to RedSector73

‎09-09-2021 07:24 AM

RedSector73 wrote:
Are you using from the CPU slots 2 & 4 (A2 & B2)


Yes, another thing i forgot, is that when mem is higher than 2666 i cannot boot at cl 14 heck even 16 was a pain in the ass.
While in the c6h with modded bios i can do it in just 1 go.
the b550m will instant fail mem training and put bios in safe mode
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RedSector73
Level 12

‎09-11-2021 05:53 PM

Have you tried selecting DOCP like this and seeing if it will boot.
https://www.legitreviews.com/wp-content/uploads/2018/05/asus-x470-board-645x484.jpg
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duncan088
Level 7
In response to RedSector73

‎09-13-2021 01:51 PM

RedSector73 wrote:
Have you tried selecting DOCP like this and seeing if it will boot.
https://www.legitreviews.com/wp-content/uploads/2018/05/asus-x470-board-645x484.jpg

it will boot, but crash as my memory is 4000mhz.
I managed tu boot at 3600 cl16 fully stable except that now usb random disconnect
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