Memory reading lower in bios

[Gandeh]

Hey folks,

I have 16gb of 1600mhz ddr memory but in bios its displaying as 16gb ddr 1236mhz.

Why would this be and how do I change it?

My memory in bios is set to auto but I can set it to 1546mhz or even 1856mhz.

Help would be appreciated

 

[Plec]

What is your MB - make and model?

But as it's set to auto it's defaulting to 1236MHz. If it's an intel setup you could enable the XMP which will input all the correct timings, frequency etc.

Or ideally input the setting manually - but we'll need those board details.

EDIT: and the memory brand and model and whether or not the system is clocked (AMD).

 

[Gandeh]

Corsair ZMS3 DDR3 1600MHz - in a Sabertooth 990FX board

 

[Plec]

Under Ai Tweaker set the memory frequency to 1600MHz (1536MHZ in your case)

Then scroll down to DRAM voltage and set it to 1.65V (you may be able to reduce this to ~1.5V once you've established the system is stable)

Then scroll up and select DRAM Timing Control and set the following (i can't see the screen you will be confronted with in the manual so look for the following - they may not be in that order, CR may be at the top 'if it's there at all'...)

• TCL - 9
• tRCD - 9
• tRP - 9
• tRAS - 24
• tRC - 41
• CR - 2

Save and exit.

EDIT: You could leave the settings for the timings if you get confused - and run CPUz and look at the memory tab as there's a strong chance that auto is already running the above timings.

 

[Gandeh]

Thank you that seems to have sorted it. I couldnt set the individual valuals because nothing was labelled what you suggested but there were similar values there already.

Hopefully that has sorted it