Can't set Ram Speed X370 Killer 5.40
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11823
Printed Date: 18 Jul 2025 at 4:03pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Can't set Ram Speed X370 Killer 5.40
Posted By: sybreeder
Subject: Can't set Ram Speed X370 Killer 5.40
Date Posted: 09 Jul 2019 at 1:54am
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Hello I've just installed 5.40 bios ( i had 4.90 and installed bridge 5.10 And then i've installed 5.40 PC booted. But i can't set Memory frequency at all. If i even set to XMP system reboots as if it faled OC. CPU Ryzen 1600 RAM G Skill F4-3000C15-8GVGB I can set RAM voltage i can set CPU Voltage. No matter what Ram Freq i set - and no matter if XMP is enabled PC doesn't boot properly. How can i resolve this issue ? |
Replies:
Posted By: Ray62
Date Posted: 09 Jul 2019 at 5:16am
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You have a first gen Ryzen. Why did you update to this bios, which just is for beginning support of the new Ryzens? There maybe are some disabled and/or not functional options. Did you make a CMOS Reset? ------------- Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
Posted By: sybreeder
Date Posted: 09 Jul 2019 at 5:58am
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Because I'm considering migrate to ryzen 3000. Right nie I've downgraded to 5.30 and everything seems to be working properly. But 5.40 doesn't support zen2. |
Posted By: Ray62
Date Posted: 09 Jul 2019 at 2:35pm
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That's good, that the downgrade to 5.30 was succesfull! I think all users of the X370 or X470 boards should wait for bios updates with AGESA Combo-AM4 1.0.0.3 or higher for the Ryzen 3000. ------------- Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
Posted By: sybreeder
Date Posted: 09 Jul 2019 at 4:58pm
Definately. I was scared when i wante to install 4.80 BIOS and it didn't recognized file. nor for 5.10. But for 5.30 it was successful. The plus is that at least from 5.30 and from 5.40 (i'm not sure about 5.10) There is now option to change BCLK. Apart from fact that when i switch even to 101 my Mellanox 10Gb card is not recognized at least it's there :D And regarding AGESA yeah it's better to wait for that update. |
Ray62 wrote: