Memory at 1.65V while processor only allows 1.5V. will this hurt my processor?

Toggle sidebar Toggle sidebar
W

WiLLsmoove

Reputable
Sep 4, 2014
3
0
4,510
Hello all,

So I'm currently running an Intel 4790K processor which is spec for using 1.5V memory.

I had purchased 2x8GB of Vengeance Pro Ram DDR3 2400MHZ memory that is spec at 1.65V.

Currently, the BIOS and CPU-Z app is telling me the DRAM is running at 1.5V and 666MHZ in DRAM frequency, respectively. Which at dual channels means its running at 1332MHZ which is a lot slower that it should run.

I went into the BIOS and made 1 change to let my ram run at 1.65V and it looks like it is allowing my ram to run faster. But will this hurt my computer in anyway? I don't know anything about over clocking and its not like I'm overclocking my memory. It's running as it should. As well, its not like I'm over clocking my CPU either. I'm just letting using memory that is higher voltage than recommended.

I should note that the only reason why I think my processor only allows using 1.5V memory is because the PC parts picker website said so.

Can I let my ram run at 1.65V without it hurting something else in my computer? Thanks.

 
Solution
EasyLover
Don't overvolt the memory. Remove the changes you've made and simply enable the XMP profile, you will get the 2400MHz frequency. This is the safest way to achieve your frequency. At high speed, you have to consider compromising on tight timings to make sure that RAM works properly. 1.65V is ok.
Sort by date Sort by votes
Eximo

Eximo

Titan
Ambassador
May 27, 2010
25,818
4,165
139,340
All Haswell chips have a 1.5 +/- 5% voltage memory controller.

You are essentially overclocking whenever you are above 1.5v or 1866Mhz. (Really 1600, but 1866 is fairly standard)

Nothing wrong with running at 1.65volts unless you plan to keep the computer for a very long time. You could also try manually setting the memory voltage to see what the memory will let you get away with, 1.575 is within spec, so you aren't far off. If you are really concerned, run the memory at 1.5volts at 2133Mhz or try loosening the timings at 2400Mhz.
 
Upvote 0 Downvote
W

WiLLsmoove

Reputable
Sep 4, 2014
3
0
4,510
will overvolting the memory controller inside the cpu hurt the cpu?

I hear I should just make sure that I have good temperature management which i'm clearly a noob about. I'm running a corsair H110 liquid cooler. It's my first built computer. in the past I've also bought one off the shelf. so its all pretty new to me.

@eximo I am planning on keeping this computer for 3-5 years.

 
Upvote 0 Downvote
EasyLover

EasyLover

Splendid
Dec 30, 2013
6,551
0
24,960
Don't overvolt the memory. Remove the changes you've made and simply enable the XMP profile, you will get the 2400MHz frequency. This is the safest way to achieve your frequency. At high speed, you have to consider compromising on tight timings to make sure that RAM works properly. 1.65V is ok.
 
Upvote 0 Downvote
Solution
W

WiLLsmoove

Reputable
Sep 4, 2014
3
0
4,510


Thanks. You've all been helpful. Just a quick last question. What do you mean I need to "consider compromising on tight timings to make sure that RAM works properly"?

If I were to just enable XMP. is there anything else I need to do?
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom