Check the latest ASRock B450 Pro4 BIOS updates.
Check the latest ASRock B450 Pro4 BIOS updates.
I’ve been experimenting with my PC and attempting to ensure it’s fully updated. The B450 Pro4 motherboard now has its BIOS set to P1.50, dated 11/5/2018. I was trying to figure out why the RAM appears at only 1333 MHz instead of the expected 3000 MHz. I decided to inspect the board and verify if a BIOS update was necessary. I’m feeling uncertain and unsure after checking the ASRock website, which suggested updating the BIOS to version 1.8 before proceeding with newer updates. I was hoping someone could quickly clarify the process for updating to the latest BIOS. From what I know, I can only upgrade to BIOS versions up to 3.5, given my AMD Ryzen 7 1700X. Is that accurate? Thanks for any guidance you can offer. Here’s a link to the motherboard BIOS page: https://www.asrock.com/mb/AMD/B450 Pro4/#BIOS
The memory controller in the 1700x series (including all Zen 1 CPUs) performs poorly. The advertised RAM speed rarely matches real performance unless it was already included in the manufacturer's QVL. I recommend against updating your BIOS. Try using the Ryzen DRAM Calculator and input the values it provides yourself—it will take some time.
Looking at the discussion, you're likely using 2133MHz and DDR4 RAM. It seems some users have enabled XMP/DOCP settings or adjusted the memory manually. Let me know if you need more details!
I entered the BIOS after noticing the RAM at 1333. XMP was enabled by default, so I switched it to XMP Profile and adjusted the speed to 3000. I wasn’t sure about any other steps to improve performance. This was my first time tweaking RAM settings in BIOS.
Reviewed CPU-Z, DRAM frequency is 1330.2 MHz. Planning to use DRAM Calc and adjust RAM in BIOS. This is my first time making these changes and a bit nervous about handling the RAM. In BIOS, the default XMP speed is set to 2666, so I changed it to 3000. I wonder if I need to update all the settings listed in DRAM Calc for it to work properly? Thanks for your help.
The explanation suggests that simply increasing the CPU speed won't ensure your memory reaches its rated performance. Going beyond 2666MHz is seen as overclocking, which may not always work as expected. Updating the BIOS to a more recent version could potentially resolve the issue and improve stability.
I revisited the bios settings and confirmed it was still at 3000. I plan to follow the update steps carefully, starting with version 1.8 and then moving to 3.5 once ready. I installed the AMD all-in-one VGA just in case there were display issues. Thanks for your assistance!