ZBOOK G10 not using all RAM speed

[3K9]

Dear HP community,

I recently bought a beefy G10 ZBook 16 Fury Mobile Workstation.

It seems that my laptop is not using the available full RAM speed of 5600MHz (MT/s), despite both the CPU and 5600MHz RAM designed to do so. I am unable to find anywhere in the BIOS to unlock the extra speed.

The specs, in stock form are:

i7-13850HX

RTX 4000 Ada
1TB SSD
32GB 5600MHz RAM (Single)
W11P

I believe this is the product number/page: 62V81EA 

You can see below that the stock RAM, Hynix hmcg88agbsa092n , isn't performing as well as it should.

I would like to upgrade and increase my RAM since the stock Hynix RAM I have is quite poor in performance, especially for single-core, compared to other DDDR5 5600MHz modules. 

But before I upgrade RAM, would I still have the same issue of running at only 4000MT/s? I am looking to get Cruical RAM.

To HP staff, Why did such an expensive, business oriented laptop designed for heavily demanding programs, receive a sub-par RAM module anyways? (with all due respect to HP and the RAM company).

Many thanks,

Kelvin

[resistencia]

Hi @3K9 

I am speculating, but from what I understand from the service manual it can reach that speed when it works in double channel, that is to say it has to have 2 equal memories otherwise I think it should work at a lower speed. I am not 100% sure about this but this is what I understand from the manual.

Buy memory that is not XMP this does not work in HP notebooks at its frequency designed by the seller, they go to lower frequency.

Maintenance and Service Guide

[3K9]

Hello @Resistencia,

Thanks for the reply.

I have just installed two 32GB Crucial  DDR5 5600 RAM sticks: 
https://www.crucial.com/memory/ddr5/CT32G56C46S5?_gl=1*1qndva*_up*MQ..*_ga*NjY5NDc5NzM1LjE3MzU2MzI1M...

64GB does show up, however, still only 4000 MT/s is in use.

Thanks,

Kelvin