Safe voltage for DDR4 ?

Dicehunter · 8 Nov 2022 at 16:43

Want to tweak my memory and was wondering if anyone knew the max safe voltage for DDR4 Micron equipped modules ? I've looked around but found a lot of contradictory information.

mickyflinn · 9 Nov 2022 at 11:26

You'll probably get differing replies but here's my take ,

Samsung B Die 1.5v
Micron 1.45v

Keep an eye on temps but to much voltage stabilty will be affected

Minstadave · 9 Nov 2022 at 11:30

There are several Micron chips used in DDR4, any idea which yours is?

Dicehunter · 9 Nov 2022 at 13:04

Minstadave said:
There are several Micron chips used in DDR4, any idea which yours is?

According to Thaiphoon it's Micron E-Die which others have said is good for daily use at 1.45 but others have said 1.40v, So much contradictory info out there.

Tetras · 9 Nov 2022 at 16:02

Dicehunter said:
According to Thaiphoon it's Micron E-Die which others have said is good for daily use at 1.45 but others have said 1.40v, So much contradictory info out there.

Isn't voltage always: "I ran mine for 24/7 for 2 years and it isn't dead yet"?

exa · 9 Nov 2022 at 18:55

Dicehunter said:
Want to tweak my memory and was wondering if anyone knew the max safe voltage for DDR4 Micron equipped modules ? I've looked around but found a lot of contradictory information.

Depends on the IC, 8gbit rev e and 16gbit rev B can happily take over 1.55V however for the other ICs I wouldnt go over 1.35 vdimm.
As youve said its Rev E the safe vDimm level would be around 1.5-1.55 with higher voltages you may need to offset vttddr down to 0.7ishV.

Wing-Man · 10 Nov 2022 at 08:41

exa said:
however for the other ICs I wouldnt go over 1.35 vdimm

dont take wet...

White_Widow · 18 Dec 2022 at 14:49

I would recommend not going more than 1.4V. it is important to note that 1.5v is the maximum safe voltage and that running your modules at this voltage may cause them to become unstable or even fail.

exa · 18 Dec 2022 at 15:06

White_Widow said:
I would recommend not going more than 1.4V. it is important to note that 1.5v is the maximum safe voltage and that running your modules at this voltage may cause them to become unstable or even fail.

1.5 is absolutely safe and fine for Micron Rev E, with up to 1.55v being fine

Wing-Man · 18 Dec 2022 at 17:57

exa said:
1.5 is absolutely safe and fine for Micron Rev E, with up to 1.55v being fine

based on what info?

exa · 18 Dec 2022 at 19:12

Wing-Man said:
based on what info?

based on info collected from friends who have ran their Rev E at 1.55 to 1.6v for the past 1-2 years with no degredation, and others in OC community who have been overclocking it since it came to market in 2017/2018.
At higher voltages you might benefit from lowering DDR termination voltage though

Wing-Man · 18 Dec 2022 at 22:54

So based on nothing then sorry I thought tou was in contact with micron...

If I say 1.75 is good and your ram dies is this ok because mine didn't?
And I say well my mate buddy's bobs best friends hair dress knows a lad who said his vet talked a a doctor whos gynaecology ones said it was ok a run 1.75