Question BIOS Update causes system to no longer post with XMP enabled.

[VirusVox]

Hello all!

Earlier today I experience a BSOD and was able to track issues back to my Graphics driver. I DDU'd the driver and reinstalled a fresh copy of the latest, but found my performance significantly worse than before. Running through troubleshooting steps a BIOS update stood out to me as I hadn't done one to this point, and the system is about a year old.

After performing the BIOS update, the system no longer POSTs if I enable the XMP profile for my RAM. It hangs on two red LEDs for 'CPU' and 'DRAM' for the most part. If I leave the CMOS battery out of the system and remove the power cable I can power on and use the system just fine with the RAM running at its base speed of 2133MHz.

My system specs are:

ASRock X570 Phantom Gaming 4 (Updated to BIOS Rev 4.20)
Ryzen 7 3800X
MSI GeForce RTX 2070 SUPER
32GB TridentZ RGB DDR4-3600MHz (two identical 16GB kits)
1TB Crucial P1, 2TB Seagate Barracuda

 

[maikutech]

To be honest with you, that problem will be something asrock has to look at very closely and see if they can offer you a new bios to correct the errors with xmp.

ASRock America, Inc.
13848 Magnolia Ave, Chino, CA91710
U.S.A.
Phone: +1-909-590-8308
Fax: +1-909-590-1026
e-mail: sales@asrockamerica.com

Also this might help you but with your trident 2 stick memory, it'll be playing musical chairs until the mobo wants to act right.
http://forum.asrock.com/forum_posts.asp?TID=14312&title=unable-to-use-xmp-phantom-gaming-4-3600-mhz

 

[VirusVox]

After doing some testing I've figured out with a manually set voltage of 1.350V (the setting used by the XMP profile) and a manual overclock of 3200MHz the system will POST fine and take the overclock. But if I try to step the system up to 3600MHz it stops POSTing.

I tried each stick individually at 3600MHz last night using XMP and no single stick would post.

Edit: After dialing in all of the RAM settings including timings and the infinity fabric settings for 3200MHz I jumped into Grand Theft Auto V and the game is basically running like a slideshow, so this setting, while allowing the system to post and perform normal tasks, does not perform in the slightest for gaming. I am wondering if perhaps an underlying RAM issue was exacerbated by the BIOS update?