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RAM not running in 2400MHz

Andreas42
Level 7
Hi all,

I just built my own computer and all is good, however, the RAM isn't running at full speed. In the BIOS, it says the frequency of the RAM is 1666MHz instead of 2400MHz.

The motherboard, ASUS H97-PLUS does indeed support it.

I looked around and people are talking about timing, which I have no idea about.

And help would be much appreciated.

Andreas
7,523 Views
4 REPLIES 4

NemesisChild
Level 12
Enable the XMP profile in your bios.

If the memory doesn't have XMP, then you will need to manually enter the frequency (2400), base timings, and DRAM voltage.
Intel i9 10850K@ 5.3GHz
ASUS ROG Strix Z490-E
Corsair H115i Pro XT
G.Skill TridentZ@ 3600MHz CL14 2x16GB
EVGA RTX 3090 Ti FWT3 Ultra
OS: WD Black SN850 1TB NVMe M.2
Storage: WD Blue SN550 2TB NVMe M.2
EVGA SuperNova 1200 P2
ASUS ROG Strix Helios GX601

Chino wrote:
The maximum frequency supported on the H97 chipset is 1600MHz.


The H97 manual clearly states that this is due to the chipset limitation.

To manually configure your memory, go into Ai Tweaker menu:
DRAM frequency: Set at 1600MHz, you can try 2400MHz but it will run at 1600 max.
DRAM Timing Control: Set base timings (10-12-12)
DRAM Voltage: Set at 1.65v
Intel i9 10850K@ 5.3GHz
ASUS ROG Strix Z490-E
Corsair H115i Pro XT
G.Skill TridentZ@ 3600MHz CL14 2x16GB
EVGA RTX 3090 Ti FWT3 Ultra
OS: WD Black SN850 1TB NVMe M.2
Storage: WD Blue SN550 2TB NVMe M.2
EVGA SuperNova 1200 P2
ASUS ROG Strix Helios GX601

Andreas42
Level 7
I just saw, it can run higher with XMP. I activated XMP, set frequency to 2400 and voltage to 1.65V but overclocking failed.

EDIT: I just tried at 1600MHz and 1.65V and it works. Is it really the H97-PLUS limiting me here?