2 Intern

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189 Posts

July 27th, 2022 20:00

Regardless of XMP or not, the memory will only run in Gear 2.   There is no way to change it......

6 Professor

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7.1K Posts

July 28th, 2022 05:00

No, you cannot run 3200 Mhz in gear mode 1 because you have no way to select gear mode 1.

In a retail board gear mode selection is independent from XMP profile selection. There is a table that explains what gear mode to select one. It's a rather convoluted system...

Bottom line to remember is the R12 runs everything in gear mode 2, by design.

2 Intern

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243 Posts

July 29th, 2022 11:00

It might be worth checking Intel's specification for Gen11 processors - the small-print of it (footnote 3), it clearly says there what Gear1/3200 is supported only for some i9 models, all i3-i7 range (even K version) will run in either Gear2/3200 mode or Gear1/2933.
Your CPU is 11400F - hence this limitation (part of CPU on-board memory controller), no way around it, it's documented (google for "SKUs are ddr4-3200 gear 1" keyword)

The good part is what your CR is 1T , not 2T, and 2x64 bit (proper dual channel) therefore you should be fine with this setup because everything else is optimized to the max (no other silly fall-backs, although if I remember correctly I would normally get up to 37GB/s on Write benchmark, Write and Copy would be the same as yours).

6 Professor

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7.1K Posts

July 27th, 2022 16:00

Gear mode selection is not supported on the R12, by design.

1 Rookie

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9 Posts

July 27th, 2022 17:00

Yes I know because I can't find it in BIOS. The question is, does stock 3200MHz run in gear 1 or 2? Can it run in gear 1 mode with XMP enabled? 

4 Operator

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2.4K Posts

July 27th, 2022 18:00

As I understand it (or not) there is no memory controller in the Aurora R12 BIOS . . . so the concept of "Gear 1 or Gear 2" has no meaning. Here is a giant flame war thread that has some useful information, if you can get through it Aurora R12 RAM Gear Issue 

1 Rookie

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9 Posts

July 27th, 2022 19:00

Yes, that's the exact thread that confuses me. Someone said if you enable XMP profile then memory controller will run at gear 2, someone said all RAM will run at gear 2 on R12 regardless of XMP setting and someone said it's related to CPU. 

Anyway, as shown in my screenshot, the memory controller frequency is 1/4 of the RAM frequency, meaning it's running at gear 2 (2:1) and benchmarking results are much slower than expected. If it's running at gear 1 memory controller frequency should be 1/2 of the RAM frequency (1:1). I just want to verify if stock 3200/3400MHz RAM runs at gear 1 or 2, since I paid extra for those 3600MHz sticks and if 3200/3400MHz RAM works at gear 1 I'll return them. Thanks

4 Operator

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2.4K Posts

July 27th, 2022 20:00

I don't have an R12 to help answer your question . . . but just a word of caution using those 3rd party programs like CPU-Z and AIDA64. If you read through the giant flame war thread you may have noticed our good friend pointed out that for the Aurora R10 CPU-Z reported an X570 mobo, when in fact the mobo is B550A. The 3rd party apps are not always accurate at detection.

1 Rookie

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9 Posts

July 28th, 2022 13:00

Thanks everyone for your help. Guess I'll just keep those 3600MHz ram if everything's on gear 2. 

4 Operator

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2.4K Posts

July 28th, 2022 14:00

If you are looking to enhance the performance of your rig . . . you might consider upgrading your processor and cooling solution.

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