DDR3 and DDR3L

Jason21715 · Apr 10, 2017

I bought i3 6100
a lga1152 ddr3l motherboard
And I have ddr3 ram

I want to know what would happen if you place the ddr3 into the ddr3L
Also is there a way to undervolt it manually?

PS. I know ddr3l is low voltage. I just wanna know what would happen.I don't want recommendations on buying other RAM. Thanks

Shoomer · Apr 10, 2017

If you place the DDR3 RAM into the DDR3L it just wont work. Simple as that, it wont work. Sorry mate.

SkyNetRising · Apr 10, 2017

It will work. But it will damage cpu also.
You have to lower ram voltage in BIOS to 1.35V to avoid that.
Problem is, that in doing so, system might become unstable or refuse to operate at all. You will need to manually lower ram frequency settings and adjust latency timings. It's kind of opposite of overclocking.

Jason21715 · Apr 10, 2017

Is there a guide somewhere where I can manually lower it or can you help me skynet?

RCFProd · Apr 10, 2017

Shoomer :

Not good advice because It's not true.

Jason21715 :

I asked you for your memory specs in the other thread and never got a complete answer. If you did I could've helped in the other thread. Some DDR3 memory runs at 1.35V from base, so in such a case underclocking/undervolting might not even be necessary.

SkyNetRising · Apr 10, 2017

Well .. damage will not occur instantly, but from prolonged operating in increased voltage mode.

Generally - you start system with DDR3,
boot into BIOS,
set ram voltage to 1.35V,
lower ram frequency to minimum available,
save/reboot and check stability;
if everything is ok, increase ram frequency and save/reboot/check again
and repeat last step until stability is no more.

COLGeek · Apr 10, 2017

Civility and decorum are an absolute must. All offending posts, both off topic and containing inappropriate language, removed.

Consider this a friendly warning. Thank you.

Rogue Leader · Apr 10, 2017

MERGED QUESTION
Question from Jason21715 : "Does DDR3 work on this mobo"

Jason21715 :

RCFProd :

Jason21715 :

RCFProd :

Jason21715 :

RCFProd :

Jason21715 :

Jason21715 · Apr 10, 2017

RCFProd :

Shoomer :

Not good advice because It's not true.

Jason21715 :

I asked you for your memory specs in the other thread and never got a complete answer. If you did I could've helped in the other thread. Some DDR3 memory runs at 1.35V from base, so in such a case underclocking/undervolting might not even be necessary.

I didn't know.
I sent you a little of my specs.
You never responded.
I will give you a screenshot when I get home.

RCFProd · Apr 10, 2017

First give the RAM with complete CAS timings and voltage and I'll try to help.

Jason21715 · Apr 10, 2017

RCFProd :

What is CAS and how do I find it.
Do I use CPU-Z?

RCFProd · Apr 10, 2017

CAS timings you can find in CPU-Z indeed. For Voltage you need to check in BIOS I think.

https://en.wikipedia.org/wiki/CAS_latency

Jason21715 · Apr 10, 2017

RCFProd :

My voltage is 1.5V. I do not know my CAS. I will check when I get home.

Jason21715 · Apr 10, 2017

RCFProd :

My CAS is 9.0 clocks. Here's more info if you need.
http://prntscr.com/euwxed

RCFProd · Apr 11, 2017

In theory you should be able to set your VTT Voltage to around ~0.930V and memory voltage to 1.35V in BIOS, but only tests by the user will show how stable that'll run. You might have to make small refinements to your latency timings based on how it performs. Run a MemTest if everything seems normal on start-up.

Jason21715 · Apr 11, 2017

RCFProd :

Thanks for the advice.
Memtest is a program downloaded online right?
If so do I open the program right when my computer starts up after I change my voltage to see if is stable.

RCFProd · Apr 11, 2017

Basically, yeah.

Actually, stick to the Windows Memory Diagnostics tool first. It'll be faster most likely and see if it shows any errors there.

Jason21715 · Apr 11, 2017

RCFProd :

Don't mind me asking but where is the Windows Memory Diagnostics. I am going to install my new motherboard tmr.
Thanks, now I know that I can undervolt my RAM.

RCFProd · Apr 11, 2017

Click ''Run'' in Windows and type ''mdsched.exe'' and hit enter. That's as easy as it is.

Are you running Win 10?

Jason21715 · Apr 11, 2017

RCFProd :

Yep, thanks for the answer

DDR3 and DDR3L

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