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X370 Memory compatability

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levelfifty View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levelfifty Quote  Post ReplyReply Direct Link To This Post Topic: X370 Memory compatability
    Posted: 28 Mar 2017 at 12:40pm
Hi, just a question...

What makes is the difference between Taichi and K4 Pro compared to the Killer SLI/ac and K4 Gaming that allows the Taichi/K4P to run 3200mhz RAM and the Killer/K4G to top out at 2933 or less?

It looks like they run different BIOS sets, Taichi/K4P are at 1.56 and Killer/K4G are at 1.63.  

Thanks!
Ryzen 1800x
ASRock X370 Killer SLI/ac
16GB TridentZ 3200 C14 @2933mhz
Saphhire NITRO+ R9 Fury
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Xaltar View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 28 Mar 2017 at 1:23pm
The Taichi and Gaming Professional both have an external clock generator to enable BCLK overclocking. This is used in conjunction with memory settings to get speeds up.

Lower tier boards like the Gaming K4 and Killer SLI do not have the added external clock generator (Hyper BCLK Engine II). This is a high end overclocking feature ASRock has added to it's premium X370 boards.
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Trender View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Trender Quote  Post ReplyReply Direct Link To This Post Posted: 29 Mar 2017 at 7:26am
Originally posted by Xaltar Xaltar wrote:

The Taichi and Gaming Professional both have an external clock generator to enable BCLK overclocking. This is used in conjunction with memory settings to get speeds up.

Lower tier boards like the Gaming K4 and Killer SLI do not have the added external clock generator (Hyper BCLK Engine II). This is a high end overclocking feature ASRock has added to it's premium X370 boards.
So the Killer and G K4 are stuck at 2933 MHz max.?
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Nejaa View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nejaa Quote  Post ReplyReply Direct Link To This Post Posted: 29 Mar 2017 at 12:23pm
Originally posted by Xaltar Xaltar wrote:

The Taichi and Gaming Professional both have an external clock generator to enable BCLK overclocking. This is used in conjunction with memory settings to get speeds up.

Lower tier boards like the Gaming K4 and Killer SLI do not have the added external clock generator (Hyper BCLK Engine II). This is a high end overclocking feature ASRock has added to it's premium X370 boards.

How do you access the BCLK?  Is it the PCIe clock?
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