No boot after Enabling XMP

Associate
Joined
5 Jun 2018
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2
Hello

I have a small problem with XMP. My motherboard and RAM - they are not working correctly together - after enabling XMP profile or enabling EZ XMP Switch (https://www.asus.com/uk/support/FAQ/1015262/) my PC does not boot (I can't even enter the bios).
What is the best approach to solving this problem?


COMPONENTS:
1. Motherboard: ASUS PRIME X299-DELUXE https://www.asus.com/uk/Motherboards/PRIME-X299-DELUXE/
2. Memory: G.Skill Trident Z 64GB (4x16GB) DDR4 PC4-28800C17 3600MHz Quad Channel Kit (F4-3600C17Q-64GTZKW) https://www.overclockers.co.uk/g.sk...hannel-kit-f4-3600c17q-64gtzkw-my-104-gs.html
3. CPU: Core i9 7940X (no overclock yet)
 
Associate
Joined
5 Jan 2005
Posts
2,221
Location
Cyprus
Have you tried resetting the bios which would disable xmp and enable the system to boot? Failing that, remove all but one of the memory modules and try booting. You will probably want to aim for a lower speed than 3600Mhz for the system to boot and operate stably.
 
Associate
OP
Joined
5 Jun 2018
Posts
2
of course, bios reset does the trick, but I still want to maximize ram speeds.
Since XMP seems to be failing this means that the original XMP setting does not play well with my motherboard I guess I need to set ram settings manually.
Probably there are the most important ones, right?

- Tested Speed: 3600MHz
- Tested Latency: 17-19-19-39
- Tested Voltage: 1.35v

So what is the best place to start, increase Voltage, increase timings (+1?, +2 for each? ), decrease seeds....?

Have you tried resetting the bios which would disable xmp and enable the system to boot? Failing that, remove all but one of the memory modules and try booting. You will probably want to aim for a lower speed than 3600Mhz for the system to boot and operate stably.
Since producer claims that it was tested at 3600Mhz speed, it should work stable at these speeds right?
 
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