Question Ryzen 3900X can't clock 1800MHz Infinity Fabric with 3600 CL14

[KhakiKikhi]

My Ryzen 3900X that I just recently purchased can't clock to 1600MHz on Infinity Fabric.
When I clock to 1600 IF with 3600 memory, testing Cinebench R20 causes my PC to black-screen and reboot.
1400 IF with memory at 3600 is stable.
Memory is Ballistix Elite 3600 CL14.
CPU is running with stock cooler.
Temps do not exceed 85C.
Please help.

 

[scallumal]

What is your ram running at? Is xmp (amd equivalent) on? If xmp is on i reccomend turning it off and manually setting ram to 3200mhz then try 1600mhz IF and then work your way up from there

I have had problems with xmp my ram couldnt even run at 2866 (2400mhz kit) but when i manually set it i managed a stable 3400mhz with a 3.7ghz oc (ryzen 1700) and then 3200mhz at 3.975ghz

If xmp is not enabled check what speed your ram is running at you want a 1:1 ratio if ur IF is runninh 1800mhz ur ram needs to be 3600mhz

 

[KhakiKikhi]

What is your ram running at? Is xmp (amd equivalent) on? If xmp is on i reccomend turning it off and manually setting ram to 3200mhz then try 1600mhz IF and then work your way up from there

I have had problems with xmp my ram couldnt even run at 2866 (2400mhz kit) but when i manually set it i managed a stable 3400mhz with a 3.7ghz oc (ryzen 1700) and then 3200mhz at 3.975ghz

If xmp is not enabled check what speed your ram is running at you want a 1:1 ratio if ur IF is runninh 1800mhz ur ram needs to be 3600mhz

Hey, thanks for the response. The discussion has been continuing in this thread now. https://www.techpowerup.com/forums/...ith-3600-cl14-disappointed-with-ryzen.258808/