DDR4 3600Mhz RAM only showing up as 1799.7Mhz

[Lesthegringo]

Hi all, I have my rig running with a Gigabyte Z370M DS3H mobo, and some 3600Mhz Corsair RAM, which initially shoed up on CPUID as working at 1333Mhz. I went into the BIOS and activated XMP, where it shows the 3600Mhz figure, but in Windows it still only shows up as 1799.7Mhz - see screenshot below.

Is this correct? If not, what have I failed to do?

Cheers

Les

 

[AmazingReflex]

I think this is OK as the RAM operates in Dual channel mode to give you the effective speed eg. 2 x 1800Mhz = 3600Mhz.

You should have your ram sticks probably in slot 1 and 3 for dual channel operation, not usually next to each other. check the manual.

 

[AmazingReflex]

Ahh, just spotted CPU-Z is stating 'Dual' so seems OK

 

[Lesthegringo]

great, thanks! I'm not the greatest with understanding this!

Cheers

Les

 

[robt100]

Yup, perfectly normal! DDR stands for 'double data rate' so whatever the Mhz reading is on CPU-Z, you need to double to get the speed

 

[RasmusP]

I think this is OK as the RAM operates in Dual channel mode to give you the effective speed eg. 2 x 1800Mhz = 3600Mhz.

You should have your ram sticks probably in slot 1 and 3 for dual channel operation, not usually next to each other. check the manual.

Just to clarify: DDR will also show half the frequency with only 1 stick or when in incorrect dual channel configurations. It's in the name as Rob said. Nothing to do with using dual channel or not.

 

[Botmeister]

You can use Windows Task Manager > Performance > Memory. No need for 3rd party applications that may interpret numbers a little different