Author: mgilbert
Subject: EFI Updates
Posted: 27 Mar 2017 at 8:25pm
Subject: EFI Updates
Posted: 27 Mar 2017 at 8:25pm
 parsec wrote:I can answer a question or two, the others are beyond my capability to answer. Regarding your 3000 speed memory, it was learned a few weeks ago from AMD (I wish I had the original source... lost that link, but we' provide it for you) that the Ryzen memory controller (part of the processor) does not support DDR4 3000 and 3400 speed memory. The Ryzen memory controller does not support the "memory dividers" for 3000 and 3400 speed memory. Please do not blame mother board manufactures for AMD not making things like this clear from the start. You may have seen in your board's Memory QVL, that 3000 speed memory will be reduced to 2933. While there is no specification for 3200 speed memory, I believe that will also run at 2933. If the Ryzen memory dividers cannot be changed or subject to an override of some kind, 2933 is the best speed we can get from DDR4 3000 and 3200 memory. http://www.asrock.com/mb/AMD/Fatal1ty%20X370%20Gaming%20K4/index.asp#Memory Another factor about Ryzen memory support, is its preference for using a Command Rate (CR) of 1T. With the few existing platforms that support DDR4 memory (Intel's X99, 100 and 200 series chipset/processor boards), a CR of 2T is the universal standard, and using 1T on those platforms is difficult or impossible at higher speeds. This means using the XMP profiles on the existing DDR4 memory will not provide optimal settings for a Ryzen system. Manually setting the memory parameters is the best current practice for Ryzen systems. Regarding why a UEFI version was not posted on a board's web page, but available via other means, I don't know the reason(s) for that. Regarding the rate or frequency of UEFI updates, I don't know anything about that. I took a quick look at the UEFI/BIOS updates for a major mother board manufacture. The GA-AX370-Gaming K7 board has two UEFI versions posted, F2 dated 2/20/17, and F3b dated 3/14/17. The GA-AX370-Gaming 5 has three UEFI versions available, F3 dated 2/13/17, F4 dated 2/20/27, and F5d dated 3/14/17. Do you consider that "almost daily"? |
I'm stuck at 2,400 MHz. As the difference between 2,933 and 3,000 would be imperceptible, I'd be completely satisfied to get to 2,933.
Regarding the posted UEFI versions... Again, I was able to get version 1.70 directly through the download feature in the UEFI itself, but that version STILL hasn't been published on ASRock's website, so I have no clue what changes it made. The latest on their website is 1.60, from 3/7. I wish ASRock would keep their website and their server version concurrent, so I wouldn't have to go into the UEFI to check for new versions.
From what other people have posted on other forums, I was under the impression that they were getting more frequent updates. Obviously, I was wrong.