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ASUS Z-390E unable to boot with 3600MHz memory

ridethewhirlwin
Level 7
Having some issues posting with 32GB 3600MHz ram and tried the following below to no avail:

- Tried XMP I and II using the respective settings on both with no success.
- Set the ram overclock to manual and input the timings no change.
- Updated to the latest bios and turned the CPU OC off and back on.
- Tried changing the voltage to 1.4 for the DRAM.
- Changed overclock to auto and dram frequency to auto this just booted the ram to 2400MHz
- Changed dram frequency back to 3600MHz and doesn't post and goes through the reboot loop.
- Tried loading one stick at a time in each slot and was only able to lead 1 stick of 16GB using 3600MHz on XMP II before blue screening in Windows, XMP I did not post. Added another stick using XMP II and again would not post.

Hardware specs: i7-9700K / ASUS Z-390E HyperX Predator Black 32GB kit 3600MHz DDR4 CL17 DIMM XMP Desktop PC Memory (HX436C17PB3K2/32) (on the QVL list for this motherboard) Samung SSD EVO 850

It seems the max dram frequency speed I can set it to without blowing up is 3200MHz. Is there a setting that needs to be set to run ram over 3200MHz?

Currently out of options with things to try, any suggestions or a guide from someone that has the same CPU/board and ram speed that has this working would be appreciated.

Thanks.
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8 REPLIES 8

Enderwiggin03
Level 7
Look into adjusting VCCIO/VCCSA voltages, max safe for daily use is around 1.3v (try not to exceed). This board also prefers 4 sticks vs 2, not sure what your memory configuration is.

Enderwiggin03 wrote:
Look into adjusting VCCIO/VCCSA voltages, max safe for daily use is around 1.3v (try not to exceed). This board also prefers 4 sticks vs 2, not sure what your memory configuration is.


Tried -
VCCIO/VCCSA to 1.25 and 1.3
CPU OC to 5.0 across all cores
CPU voltage to 1.35
DRAM voltage to 1.4
DRAM frequency to 3600MHz

Still won't post using 3600MHz.

dfaovred
Level 10
What memory slots on the board are you using, you should be using slot 2 and then slot 4.

Slots - DIMM_B2 and DIMM_A2

dfaovred wrote:
What memory slots on the board are you using, you should be using slot 2 and then slot 4.

Slots - DIMM_B2 and DIMM_A2


Both are in the A2 and B2 slots.

Enderwiggin03
Level 7
Might be the IMC on the CPU. You still haven't said if you're running 2 sticks or 4 sticks. The Z390 series from Asus has T-Topography which is better suited for 4 sticks. Also, you might have to do manual timings etc if that kit isn't on the QVL. I have a 4266mhz CL 19 setup (2 kits of 2x8GB) and the best I can do is 4000mhz at CL 16-17-17-35 @ 1.45v, my VCCIO/VCCSA reported is 1.264v/1.280v, same board you have with the latest bios.

Enderwiggin03 wrote:
Might be the IMC on the CPU. You still haven't said if you're running 2 sticks or 4 sticks. The Z390 series from Asus has T-Topography which is better suited for 4 sticks. Also, you might have to do manual timings etc if that kit isn't on the QVL. I have a 4266mhz CL 19 setup (2 kits of 2x8GB) and the best I can do is 4000mhz at CL 16-17-17-35 @ 1.45v, my VCCIO/VCCSA reported is 1.264v/1.280v, same board you have with the latest bios.


2 sticks of 16gb ram are in the A2 and B2 slots per the manual specifications that I mentioned previously to another reply in the thread.

The ram I have tried is on the QVL list (as 2 sticks of 16gb). I have tried to use manual timings to the original timings on the ram kit, but it appears that any dram frequency above 3200MHz will result in a post failure.

Which ram are you using? And CPU?

ridethewhirlwinds wrote:
2 sticks of 16gb ram are in the A2 and B2 slots per the manual specifications that I mentioned previously to another reply in the thread.

The ram I have tried is on the QVL list (as 2 sticks of 16gb). I have tried to use manual timings to the original timings on the ram kit, but it appears that any dram frequency above 3200MHz will result in a post failure.

Which ram are you using? And CPU?

G.Skill F4-4266C19D-16GTZR, 2 kits, CPU is an i9 9900k

Enderwiggin03 wrote:
G.Skill F4-4266C19D-16GTZR, 2 kits, CPU is an i9 9900k


is there a typo? i cant see this on your QVL