Memory Speed Issue

[Aftermath]

For whatever reason I randomly decided to check my RAM speed and realized its running at default 4800MT/s instead of the rated 6000MT/s.  I have gone through BIOS and set it for the XMP 6000 setting but it still reverts back to 4800.  Anyone have similar issues?

 

Motherboard:  ASRock X670E Phantom Gaming Lightning

RAM:  (2) G.Skill F5-6000J3636F16G

 

I have updated all drivers and BIOS to latest versions.  I have had the itch to make an unecessary purchase lately, so maybe an X870E board is in my future lol.

[floki]

I asked chatgpt for u and give me more than one answer and 7 solutions 

 

Quoting chatgpt :

 

Yeah, this is a pretty common issue on AM5 systems—especially with DDR5 6000 kits. What you’re describing usually means the system is failing memory training at 6000 MT/s, so it falls back to the safe default (4800).

Let’s go through the most likely causes and fixes:

🔧 1. Make sure you’re using the correct profile (EXPO vs XMP)

Your kit G.Skill F5-6000J3636F16G is typically Intel XMP, not AMD EXPO.

On AMD boards like ASRock X670E Phantom Gaming Lightning, XMP can work, but it’s less reliable than EXPO.

In BIOS, try:

Load XMP Profile

OR check if there’s an “EXPO/XMP compatibility mode”

👉 If possible, EXPO kits are more stable on Ryzen 7000.

⚙️ 2. Enable Memory Context Restore + Power Down Mode

In BIOS (ASRock usually has this):

Memory Context Restore → Enabled

Power Down Mode → Enabled

This helps prevent retraining failures on boot.

⚡ 3. Manually set voltage (very important)

Sometimes auto voltage is too low.

Try setting manually:

DRAM Voltage (VDD/VDDQ): 1.35V → 1.40V

SOC Voltage: 1.20V → max 1.25V (don’t go higher)

👉 Many Ryzen 7000 chips need a bit more SOC voltage for stable 6000.

🧠 4. Check RAM slots (this one matters more than people think)

Make sure sticks are in:

A2 + B2 slots (2nd and 4th from CPU)

Wrong slots = unstable XMP/EXPO.

🔁 5. Clear CMOS and retry

Even if BIOS is updated:

Reset BIOS (Clear CMOS)

Boot once at default

Then enable XMP again

🧪 6. Your CPU’s memory controller might be the limiter

Not all Ryzen 7000 CPUs can handle 6000 easily.

Sweet spot = 6000 MT/s

But some chips only stabilize at:

5600

5800

👉 Try setting manually:

5600 MT/s → test

5800 MT/s → test

If those work but 6000 doesn’t → it’s just silicon lottery.

🧩 7. BIOS quirks (ASRock specifically)

Some BIOS versions on X670E boards have:

Broken memory training

XMP not applying correctly

👉 Try:

Reflash BIOS again (even same version)

Or test one version older

🚨 Quick reality check

If it keeps reverting to 4800, that means:

❗ The system is POST-failing at 6000, not just ignoring your setting.

✔️ Best quick fix path

Try this exact combo:

XMP enabled

DRAM Voltage: 1.37V

SOC Voltage: 1.23V

Speed: 6000

Slots: A2/B2

If fail → drop to 5800

[RNGesus]

Sounds like memory training failure just a guess need more info are your ram sticks in the correct spots A2/B2? Can you post the XMP profile your trying?

[Strelok]

I got same issue on Asrock mb. But everything solved by BIOS update. 
As @RNGesus said, Need more info. In wich spots do you have your sticks. Also helps flash last version of your BIOS by your flash drive. (PS: Asrock MB sucks.. 😄 )

 

[Aftermath]

I just flashed BIOS to version 4.10 I believe.   And yes, they are installed in A2 and B2  I'll post the settings when I get home to look at them

[Aftermath]

 

Its the XMP-6000 settings.  

[captnconcrete]

try disabling asrock  memory optimization . sum say with that board that older bios work better then newer...

 

 

https://www.techpowerup.com/download/amd-ryzen-zen-timings/

 

post results ....

Edited April 27 by captnconcrete

[Aftermath]

I actually reset all my bios settings and so far it is stable using the XMP 6000 settings. I appreciate all the input!