Question X470 AORUS GAMING 5 WiFi + 3900x

[doopsnoop]

Hello everyone, so I just tried to install a brand new 3900x on this motherboard, but of course impossible to start. No display, I tried the clear cmos, nothing. Do you have an idea? Has anyone installed a 3x on this MB?
I'm drying and I'm a little disappointed with the blow
Thanks in advance for the help
I forgot to say that I have the last bios installed and that the card worked with my 2700x

 

[MrN1ce9uy]

Do you mean "latest bios" as in the newest bios released for that mobo, or "last bios" as in whatever bios was last installed?

You need bios F40 installed.

 

[doopsnoop]

Hi and thanks for your answer, I've the f42a installed, but I've almost resolved the problem. I've removed 2 of my 4 memory-sticks (g.skill trident Z 3200 CAS 14, 16gb for each stick, total 64gb 😝) but with 4 sticks, there is no boot possible (black screen) and no problem with 2 sticks. The same 4 sticks was working perfectly on the same MB, but with my "old" 2700x. What happened with the 3900x?

Any idea?

Grrr that's too bad, I need my computer for working and I need most memory as possible, 32gb is too short for me.

Thanks a lot

 

[doopsnoop]

Victory, I win against the motherboard, cpu and ddr4 😎
OK not really I just found the answer on a French forum 😋
The solution : Before update BIOS to F40, you have to install EC FW Update Tool (B19.0517.1 or later version) to avoid 4DIMM DDR compatibility on 3rd Gen AMD Ryzen™ CPU.
This update have solve my 4 ddrs problem, but the ddr was unable to reach the good timings of 14-14-14-36-48 @ 3200.
After longs longs tests and the new options of the last f42b (in amd overclocking and ddr setup) I reach the good timings and succeed in ddr overclocking at 3600 with 16-16-16-36-48 timings and total stability. I'm happy 😊 this cpu is a beast!