4790k Memory Controller Voltage

[PowerPie5000]

Does anyone know if Haswells integrated memory controller runs at a higher voltage than the actual RAM? Speccy shows the memory controller running at 1.696v (i7 4790k & Asrock Z97 Extreme4 mobo). The installed RAM is Corsair Vengeance 1600 stuff which is rated at 1.5v and the XMP profile is enabled too.

The only utility that shows me actual memory voltages is Asrocks own OC Tune software and it shows the memory voltage as 1.500v... But I don't know if this result is from a sensor or just SPD/bios info? Shouldn't the memory controller be running at the same voltage as the RAM? For all I know my memory could actually be running at almost 1.7v!

[PowerPie5000]

Can anyone with a Z97 based board (or even Z87) please let me know what voltage Speccy shows for the memory controller (under motherboard option).

Cheers

[PowerPie5000]

Here are a few screenshots... Only the Asrock utility shows the RAM as 1.5v, but I suspect it's not an actual sensor reading (probably just SPD info). I can't find any other utils that will show the actual memory voltage for this board .

[PowerPie5000]

Speccy and HWMonitor (amongst others) show the motherboard temp as 32c... The Asrock utility shows it as 25c

[PowerPie5000]

I'd like to see what other peoples memory controller voltage using Speccy please . I thought the readings would be the same as the DRAM (1.5v or so). My older PC with a H67 chipset and i7 3770k shows both the DRAM and memory controller voltages as 1.575v.

[PowerPie5000]

Any other Asrock Z97 owners out there?

[1stCowGirl]

good info. tx

[roberto89]

PowerPie, it is generally not required for an IC to produce outputs or register inputs at the same voltage which is being supplied to it. Take small motor controllers for example, motor control ICs generally work on 12V but the outputs they produce are different. Therefore, if your RAM is functioning correctly, it’s not something you need to be bothered about. Hopefully, you won’t have any issues.

smt pcb