Added 16gb RAM and it is now showing as 2400 MT/s rather than 3200 MT/s

[AdamBeGood]

Edit: Looking at the forum again, it seems more appropriate that this should be in the Gaming Desktops section, so I have duplicated the post there as I cannot  seem to move it. If any admins see this, feel free to delete this post please.

Hi all,

I purchased two 8gb sticks of the below memory, at a 3200 MT/s speed variant:

FURY Kingston FURY™ DDR4 RGB Memory – 8GB-128GB 2666MT/s-3733MT/s - Kingston Technology

I was hoping that as it is exactly the same aesthetically as the 16gb of HyperX Beast memory included in the 45L, that it would be compatible.

Before I installed the additional RAM, the speed of the included RAM was at 3200 MT/s, but now with 4 sticks it is showing at 2400 MT/s.

Can my BIOS settings be amended to bring this back up to 3200 MT/s (or even to 3733 MT/s)? Is that possible? Please let me know if more information is required.

Thanks,

Adam

[BeemerBiker · Accepted solution]

IF the memory does not match exactly the default generally is 2400

https://www.ifixit.com/Answers/View/618590/Why+does+the+RAM+clock+rate+reduce+when+adding+memory

I have read elsewhere that the expected memory SPD is coded into the HP bios and unless the BIOS supports XMP the speed cannot be changed.  This assumes the memory supports XMP.  The latest bios (Omen 45) is Dec 2021 and I did not read anything in the release about XMP.

https://support.hp.com/us-en/drivers/selfservice/omen-by-hp-45l-gaming-desktop-pc-gt22-0000a/2100851...

Download and run CPUz and compare the different SPD settings and manufacturers of the memory sticks. Unless the BIOS support changing the speed,  you need to obtain matching memory.

[edit] matching memory means same type of chips, voltage, size, etc.

different ranks (2rx8 and 1rx8) may both work but are not matching and speed will default a "safe" value like the slow 2400.  it is possible the memory you bough only runs at 3200 if overclocked..  Just guessing.

[AdamBeGood]

Fair enough - the BIOS definitely does support XMP though, there were two XMP profiles available in an "Advanced" tab of the BIOS menu.