MSI Z390A-PRO supports up to four RAM modules.

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rayku98
Member

173

08-03-2018, 11:44 PM

Hey, I see the problem here. Your friend has a 32GB RAM setup on an MSI Z390A-PRO with an i5 9600K. He switched from 16GB to 32GB, but now it doesn’t boot properly. The new RAM sticks work individually, yet together they fail. After updating the BIOS, he managed to boot, but in Tast Manager and BIOS the RAM speed is stuck at 1867Mhz. When he enables XMP Profile 1 (3000Mhz), the PC crashes and asks to run in safe mode or default settings. What do you think? Is there a solution to fix this? Thanks!

rayku98

08-03-2018, 11:44 PM #1

FR0Zos
Member

08-04-2018, 10:02 PM

The solution is to bring back the recently purchased RAM sticks and purchase new ones with matching or better specifications.

FR0Zos

08-04-2018, 10:02 PM #2

The solution is to bring back the recently purchased RAM sticks and purchase new ones with matching or better specifications.

Bogieful
Junior Member

08-05-2018, 12:27 PM

The updated rods match perfectly—identical specifications, consistent CL, frequency, capacity, and voltage.

Bogieful

08-05-2018, 12:27 PM #3

The updated rods match perfectly—identical specifications, consistent CL, frequency, capacity, and voltage.

Lloyd_Gaming
Member

236

08-05-2018, 07:17 PM

Both groups produce identical results, function alike, and communicate consistently when used separately.

Lloyd_Gaming

08-05-2018, 07:17 PM #4

Both groups produce identical results, function alike, and communicate consistently when used separately.

_chegoo_
Junior Member

08-05-2018, 09:02 PM

Using XMP on four cables usually needs a slight boost in voltage manually.

_chegoo_

08-05-2018, 09:02 PM #5

Using XMP on four cables usually needs a slight boost in voltage manually.

badgergirl0315
Member

163

08-05-2018, 09:38 PM

I'll refer to the original pair of sticks - A, and the new pair B. A functions well by itself. B also works independently. AB isn't starting. After he managed to boot (probably through some troubleshooting or I don't know exactly what he did), in Task and Bios - RAM Speed - 18xx. Do you know the suggested voltage?

badgergirl0315

08-05-2018, 09:38 PM #6

Cameina
Junior Member

08-06-2018, 11:40 AM

@Kilrah, it seems the system might struggle with higher ranks in memory. Consider increasing voltage (like SOC voltage...) or lowering frequency, try 2666, and gradually progress upward.

Cameina

08-06-2018, 11:40 AM #7

@Kilrah, it seems the system might struggle with higher ranks in memory. Consider increasing voltage (like SOC voltage...) or lowering frequency, try 2666, and gradually progress upward.

agroman
Junior Member

08-07-2018, 02:16 AM

His profiles range from 1 to 3000Mhz, 2 to 2666Mhz. I watched a YouTube video and they mentioned the default speed for DDR RAM is 2133, which seems to be what my friend uses at 18xx. That’s the initial thought that came to mind.

agroman

08-07-2018, 02:16 AM #8

czarna7676lala
Junior Member

08-12-2018, 11:02 PM

The JEDEC standard for 1R DDR4 is 2133 2R or above could be lower, not very clear.

czarna7676lala

08-12-2018, 11:02 PM #9

The JEDEC standard for 1R DDR4 is 2133 2R or above could be lower, not very clear.

AJ663
Member

08-12-2018, 11:35 PM

#10

Checked the RAM specifications at the provided link. Setting the voltage from the data suggests a stable performance around 2666 MHz. A quick note: it seems he attempted manual tuning at 1.35 but couldn't reach 3000MHz on all modules, so targeting 2666 makes more sense.

AJ663

08-12-2018, 11:35 PM #10

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