Ram Voltage Question

[Radioboy]

Hi everyone.

Just a quick question:

I currently have two 4GB Ram modules installed in my rig which are 1.5V and was gifted a set of two 8Gb Ram modules that run at 1.35V.

Question is, would I be able to use these 1.35V modules together with the other two?

Many thanks

Rb

 

[DanDango]

Google your motherboard and check if it support the voltages.

 

[ponder]

Maybe, maybe not. The LV ram might be backward compatible with 1.5V. Also need to check mb.

I would just slot them in and try if it was me.

 

[Rickster]

Set the voltages in the Bios.

 

[Radioboy]

Thank you everyone

Do I set all 4 to 1.35V ?

Before I Chuck them in, I won't blow up something hey?

 

[Willy Strong]

Did you see post #2?

 

[Rickster]

Thank you everyone

Do I set all 4 to 1.35V ?

Before I Chuck them in, I won't blow up something hey?

What mobo is it?

 

[Radioboy]

I have a MSI Z77A-G43 GAMING Mobo

I couldnd find the exact voltages supported here: https://www.msi.com/Motherboard/Z77A-G43-GAMING.html#hero-specification

All the info i managed to get was that the differences in voltages will most likely cause system instability & that is why i didnt install it with asking around.

 

[Rickster]

You can try undervolt the 1.5 stick and test.

 

[sajunky]

If doesn't work, upgrade BIOS. Early MSI BIOS revisions had problems with memory compatibility, especially with XMP enabled.

 

[X-Gamer]

I doubt the 1.5 will run at 1.35V, unless you run them much slower... My MSI Z77-GD65 cannot run my 4+4GB DDR3-2400 sticks above 2133. Could be mobo, could be finicky memory controller on my i5 3570k.

It wold probably be easier to try and run the 1.35V memory at 1.5V.