Issue with Dual-Channel RAM Not Working – HP 15s-eq0xxx

[silver452]

Dear HP Support Team,

I am experiencing an issue with my HP 15s-eq0xxx laptop. I have installed two identical RAM sticks (same brand, size, speed, and latency), but my laptop is not running in dual-channel mode. Instead, it is operating in single-channel mode, which is affecting my system's performance.

I have tried the following troubleshooting steps:

1. Swapping the RAM sticks in different slots.
2. Checking the RAM configuration in CPU-Z and Task Manager.
3. Ensuring both RAM sticks are recognized and working properly.

Despite these efforts, dual-channel mode is not activating. I would appreciate your guidance on resolving this issue. If a BIOS update or any specific settings are required, please provide instructions.

[resistencia]

Hi @silver452 

you can upload a CPU-Z image, usually many users make the mistake of confusing single rank with dual channel.

Where single rank indicates that the memory has the chips on one side only, is not related to the dual channel

[silver452]

[resistencia]

the first image is the correct one, it says that it is working at double channel 2x64bit, which indicates that they go to 128 bit which is the indicator of the double channel, the other image indicates exactly what I said before are single rank memories that indicate that it has only one chip on one side.

[silver452]

Both should show dual in order to confirm that it's actually working in dual-channel mode.

[resistencia]

You are not misunderstanding, you are already in dual channel, when you have 2 x64 bit indicate that the meiras instead of working at 64 bit are working at 128 bit which increases the data transfer between the memories to double (128 bit) which indicates that they are working in dual channel.

The single rank is the hardware is using memories that actually have the memory chips soldered on one side of the memory, there are double rank memories that have the chips on both sides of the memory.

[silver452]

[silver452]

Okay, this is right, but my RAM's speed is 3200 mts and Task Manager shows it as 2400 mts. What should I do about this? my laptop max speed is 3200mts 

[resistencia · Accepted solution]

Because your processor can not go over 2400, you can put 3200 but the memory BUS lowers the frequency to 2400, the CPU-Z image you put is correct 1200x2 =2400

well I hope this solved the problem, a quick introduction to how memories work

[silver452]

Thank you so much for the solution! I really appreciate your help in clearing things up. It means a lot