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Z170 Pro4 RAM Issue with latest BIOS (3.20)
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geoto View Drop Down
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    Posted: 18 Mar 2016 at 8:19am
Hello there,

I just registered in order to inform ASRock, that their newest BIOS (3.20) for this motherboard - ASRock Z170 Pro4 doesn't set the correct RAM frequency, when the XMP profile is chosen.

I have a Kingston Hyper X Fury RAM kit - 2x8GB @ 2400Mhz

The following happens:

I set the XMP profile and save it. When I restart the computer - all of the timings and clocks of the RAM are correctly updated, BUT the memory frequency stays the same - 2133Mhz instead of 2400Mhz (XMP).

I really hope that this will be fixed in the next BIOS update. It's really annoying.
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parsec View Drop Down
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Points: 4996 		Post Options Post Options   Thanks (0) Thanks(0)   Quote parsec Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2016 at 10:26am
Thanks for the information. What is telling you that the memory is running at 2133 instead of 2400?

What is the full model number of the memory you are using?

You can always set the memory speed to 2400 manually yourself.
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Try and set the RAM speed manually to 2400 as Parsec mentioned and see if that works for you. Also make sure that the RAM doesn't have more than one XMP profile, if it does you may have the wrong one selected.
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geoto View Drop Down
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@parsec - BIOS is telling me that the RAM is running @2133Mhz, but all of the clocks and timings are correctly updated (I think). Also, CPU-Z says the same thing.

RAM S/N - HX424C15FBK2/16

Here's three screenshots. XMP Off, XMP On and XMP On + forced DRAM frequency to 2400Mhz.

http://s28.postimg.org/4l901al0t/xmpoff.png

http://s28.postimg.org/fara7am7h/xmpon.png

http://s28.postimg.org/9lb1mzg19/xmpforcedfrequency.png

I noticed that when I turned XMP on AND forced DRAM to 2400Mhz, the CR, the tRFC and FSB:DRAM changed, compared to "XMP" @2133Mhz.

Is that normal?

So yeah, I know I can manually change the frequency - but is that safe? The XMP profile was working correctly in the old BIOS, so it's kind of disappointing. I hope they fix this in the next update. If ASRock staff reads this forum anyways.

Thanks.




Edited by geoto - 18 Mar 2016 at 6:50pm
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greddy View Drop Down
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3.20 is suck    i've 2666  and be forced to go down to 2133

If i set to 2666 can't boot to window.  Now i go back to 3.10
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geoto View Drop Down
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Points: 8 		Post Options Post Options   Thanks (0) Thanks(0)   Quote geoto Quote  Post ReplyReply Direct Link To This Post Posted: 19 Mar 2016 at 12:33am
Actually I have faster boot times with 3.20 and overall seems better. But that XMP bug is just plain stupid.
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damasterjj View Drop Down
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I have same issue, This is probably why windows won't boot if I have any overclock with dddr-3200... I downgraded to 3.10 but bios still freezes randomly




Edited by damasterjj - 19 Mar 2016 at 1:24pm
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geoto View Drop Down
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I have no issues with this BIOS (3.20), apart from the fact that it doesn't set the correct DRAM frequency, when the XMP profile is chosen.
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greddy View Drop Down
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Like i said before. This model doesn't compatible with HYPER X FURY model
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Dear customers,
Greetings, this is ASRock Technical Support Department.

Regarding the memory issue, please kindly use the link to apply a support request to us: http://event.asrock.com/tsd.asp
We will help you to for further check.

Thank you for your patience.
If any, please feel free to contact us!


Kindest Regards,
ASRock TSD 
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