Memory Voltage

nufc179999 · 3 Apr 2022 at 14:04

Hi all my question is is it safe to run my Corsair Vengeance LPX 8gb x2 16gb 3200 at 1.40v as the PC will not boot with XMP Profile switched on in the bios with the RAM running at 1.35v but will boot with the XMP Profile switched on running at 1.40v ??

Tetras · 3 Apr 2022 at 22:44

nufc179999 said:
Hi all my question is is it safe to run my Corsair Vengeance LPX 8gb x2 16gb 3200 at 1.40v as the PC will not boot with XMP Profile switched on in the bios with the RAM running at 1.35v but will boot with the XMP Profile switched on running at 1.40v ??

Personally, I'd rather try running at looser timings instead of XMP, or even drop down to 3000 Mhz, but there are plenty of people running their DDR4 at 1.4 long-term and it seems to be fine. Surprising that it can't run 2x8 at 1.35v, usually it is 4 sticks that start having issues with XMP.

Wing-Man · 4 Apr 2022 at 13:28

What cpu and motherboard

nufc179999 · 4 Apr 2022 at 14:12

It's a Asrock Z270 Pro4 MB & a I7-7700K CPU

Wing-Man · 4 Apr 2022 at 14:30

there is no problem with an extra 0.05v on that platform, my last CPU was a 6700k and i had my ram at 1.45v for about 2 years

nufc179999 · 4 Apr 2022 at 14:43

Thanks for your reply fella great to know that information it's the first time i have ever had to increase the ram voltage i know that my CPU voltage is ok running at 1.37v running at 4.8MHz but had no clue about the ram voltage.
Thanks again bud
Take it ez & stay safe

Wing-Man · 4 Apr 2022 at 14:47

nufc179999 said:
Thanks for your reply fella great to know that information it's the first time i have ever had to increase the ram voltage i know that my CPU voltage is ok running at 1.37v running at 4.8MHz but had no clue about the ram voltage.
Thanks again bud
Take it ez & stay safe

Just keep an eye on temps. The extra load on the memory controller will put a little more heat into the cpu

nufc179999 · 4 Apr 2022 at 15:00

The temps seem to be fine with that OC of 4.8MHz with 1.37v i have tested it using all the stress test software available the highest it gets to is 81c on cores 0 & 2 & 82c on the CPU Package

JollyJamma · 13 Apr 2022 at 09:55

You could probably run your ram at 1.5v and it would be fine. You’re not pushing the ram that hard (frequency wise) and 1.5 isn’t that high.

call me when you get to 1.6v

Wing-Man · 13 Apr 2022 at 10:29

You must be at 1.6v for daily right?

JollyJamma · 13 Apr 2022 at 10:31

Wing-Man said:
You must be at 1.6v for daily right?

I’m at 1.5v daily.

my ram is poorly quality B die and doesn’t respond well to voltage.

I tried 1.6 but it made zero difference.

I have 2 kits of 2 by 8gig 8Pack B Die 3200CL14 but it’s single rank and my current kit is dual rank and performs better in games.

I’m a big fan of Buildzoids ram guide and his ramblings are very informative.

Wing-Man · 13 Apr 2022 at 10:33

So why are you running 1.5v must be super tight or mega high clock

JollyJamma · 13 Apr 2022 at 10:35

Wing-Man said:
So why are you running 1.5v must be super tight or mega high clock

It’s tight.

My ram won’t clock past 3200 but I’m not sure if it’s my cpu or motherboard holding it back.

I did tweak the voltage to 1.45 and It was fine but then I lost the bios settings and I haven’t had the time to tweak it all again. All of my sub timings were spot on and the performance was great.

Wing-Man · 13 Apr 2022 at 10:37

Let’s see a bios shot then. I like to see the super tight…

your cpu can easily handle ram past 3200 mhz

high voltage is not good for the memory controller