Question Help with G.Skill DDR5 6000 MHz RAM on MSI MPG X670E Carbon PC wont BOOT on EXPO

[karolm]

Hi everyone,

I recently added another set of RAM to my system: G.Skill Trident Z5 Neo DDR5 2x32GB 6000 MHz, giving me a total of 128 GB (4x32GB). However, I'm running into some issues:

1. When I enable EXPO, the PC won’t boot.
2. Clearing the CMOS allows the PC to boot, but only with the RAM running at 3600 MHz.

Here’s what I’ve tried so far:

• Updated the BIOS to the latest version.
• Played around with some manual memory settings in the BIOS, like memory try it or instead of 6000 mhz put it at 4800mhz or 4000mhz but it would only boot at 3600mhz default cmos.

I should mention that my PSU is quite old (6+ years), though it’s a 1000W unit.

My questions:​

1. Has anyone with the MSI MPG X670E Carbon motherboard experienced similar issues with DDR5 and EXPO? If so, did you manage to fix it?
2. Has anyone successfully overclocked this RAM manually on the same board? If so, what settings did you use? I’m new to manual RAM overclocking, so any tips would be greatly appreciated.
3. Is it better to run 128 GB at 3600 MHz or stick with 64 GB at 6000 MHz? I’m worried about making my system slower because of the mismatched settings, but I can’t return the new RAM to the store.

My PC specs:​

• Motherboard: MSI MPG X670E Carbon
• CPU: AMD Ryzen 9 7950X
• GPU: Gigabyte RTX 4080
• PSU: 1000W (6+ years old)

Thanks in advance for any advice or suggestions! 🙏

 

[Lutfij]

I recently added another set of RAM to my system: G.Skill Trident Z5 Neo DDR5 2x32GB 6000 MHz, giving me a total of 128 GB (4x32GB). However, I'm running into some issues:
What sort of time difference are we looking at between the purchases of both ram kits?

Motherboard: MSI MPG X670E Carbon
+
Updated the BIOS to the latest version.
For the sake of relevance, please state the BIOS version you're on for your motherboard. Did you clear the CMOS after verifying the BIOS was flashed successfully?

Ideally, you clear the CMOS by:
Disconnecting from the wall and display, the remove the CMOS battery, press and hold down the power button for 30secs to drain any residual power, then reseat the battery after 30mins.

PSU: 1000W (6+ years old)
1000W is the advertised wattage of the unit. What is the make and model of the unit and what did it power throughout it's 6 year tenure in your prior build till today?

Might I ask, why do you need all this ram?

 

[karolm]

What sort of time difference are we looking at between the purchases of both ram kits? Around few months i made sure the spec of those rams are still the same and they are.

MFor the sake of relevance, please state the BIOS version you're on for your motherboard. Did you clear the CMOS after verifying the BIOS was flashed successfully? Bios version is 7D70v1 the most recent . and yes i did clear CMOS after flash.


1000W is the advertised wattage of the unit. What is the make and model of the unit and what did it power throughout it's 6 year tenure in your prior build till today? Sorry but i do not have exact make and model at this moment i am at work .

Might I ask, why do you need all this ram? Pure gaming needs i know 64 gb is enough but i am upgrading my setup recently and i will be buying 5090 next week and i though i would upgrade RAM as well because had 2 slots.