4800U and XMP

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   So far all the memory modules that have a lower latency rating than CL22 say they require XMP configuration to hit the CL16.  Any word on the 4800U getting XMP option in the bios£

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jsmiddleton4 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Mar 2021 Location: Fort Wayne, IN Status: Offline Points: 210	Post Options Post Reply Quote jsmiddleton4 Report Post Thanks(0) Quote Reply Topic: 4800U and XMP Posted: 23 Mar 2021 at 11:39pm
	So far all the memory modules that have a lower latency rating than CL22 say they require XMP configuration to hit the CL16. Any word on the 4800U getting XMP option in the bios£

jsmiddleton4 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Mar 2021 Location: Fort Wayne, IN Status: Offline Points: 210	Post Options Post Reply Quote jsmiddleton4 Report Post Thanks(0) Quote Reply Posted: 24 Mar 2021 at 11:50pm
	I emailed the suggestion to Tech Support. No way this box would get the fancy memory over clocking stuff available on full blown gaming mother boards. It shouldn't. BUT to have a simple option, "JEDEC or XMP" in Memory Configuration when the XMP information is stored on the memory module£ Seems reasonable. IF ASRock added it the performance increase would push their 4x4's into the lead performance wise over competitors.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 25028	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 25 Mar 2021 at 12:54am
	Typically this kind of thing comes down from the CPU/Chipset manufacturer. If ASRock were permitted to enable functionality, they likely would have. This kind of thing is a restriction on the AGESA level, not something any manufacturer can easily bypass or hack. If you would like to see XMP implemented it's AMD you need to petition. They would have to add the functionality to the AGESA for the 4800u platform. Given how unreliable XMP is, it makes sense that they did not accommodate for it on a platform designed for industrial use. The problem is that DDR4 has seen so many iterations and had it's standards changed so many times.


jsmiddleton4 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Mar 2021 Location: Fort Wayne, IN Status: Offline Points: 210	Post Options Post Reply Quote jsmiddleton4 Report Post Thanks(0) Quote Reply Posted: 26 Mar 2021 at 2:51am
	Understandable. Still would like to know. Out of the box things like IOMMU were not in the bios. Asrock added those things. AMD wasn£�t involved. Entirely possible and I agree with the ASRock boxes being intended for industrial use so you go for stable over cutting edge performance. But AMD doesn£�t tell ASRock which market niche do they£ Isnt£that ASRock£�s decision£ The ASUS boxes aren£�t £�industrial£division. I have no idea of XMP is available as a choice for ASUS. Haven£�t seen an ASUS 4800U. 4300/4500/4700. Worth finding out I suppose. Even some of the slower ram modules in the CL16/17 range are XMP only. So the choice to drop down to 29333/CL17 which would probably perform better isn£�t a choice either.