1.35V DDR4 module in 1.2V motherboard slot

PatheticGamer

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Feb 27, 2016
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Hello, so i bought 16GB's of G.Skill RipjawsV RAM for my Ryzen 5 1600 system. I noticed, that my ASUS B350 PRIME PLUS motherboard has a 1.2V DDR4 slot, while G.Skill modules have 1.35V. I haven't lauched system yet, so I'd like to know, if this voltage difference will harm any of components? RAM has 3000MHz clock, will my motherboard just lower RAM's voltage to 1.2V, thus lowering the RAM clockspeed?
 
Solution
People have been yelling ooh ooh scary scary since Sandy Bridge and the only problem has been in their imagination. Th governing standard for RAM is JEDEC and the JEDEC specs do not include Intel's XMP and AMDs AMP so they are considered 'overclocked". And just about very RAM package you can find with be advertised at the XMP / AMP sped and voltages. For Intel, you can go to their XMP page for a "certified compatible" listing if RAM speeds and voltages. And there you will pretty much find that every RAM fazter than 3200 is 1.35 volts/. from the horse's moth' so to speak

http://www.legitreviews.com/what-is-the-safe-voltage-range-for-ddr4-memory-overclocking_150115

Legit Reviews contacted Intel about the safe voltage range on...
People have been yelling ooh ooh scary scary since Sandy Bridge and the only problem has been in their imagination. Th governing standard for RAM is JEDEC and the JEDEC specs do not include Intel's XMP and AMDs AMP so they are considered 'overclocked". And just about very RAM package you can find with be advertised at the XMP / AMP sped and voltages. For Intel, you can go to their XMP page for a "certified compatible" listing if RAM speeds and voltages. And there you will pretty much find that every RAM fazter than 3200 is 1.35 volts/. from the horse's moth' so to speak

http://www.legitreviews.com/what-is-the-safe-voltage-range-for-ddr4-memory-overclocking_150115

Legit Reviews contacted Intel about the safe voltage range on DDR4 memory and we received this response

1.5v is the absolute max we allow for XMP certifications. However, good DDR4 memory will run at 1.35v up to 3200.

Now all that being said, this is AMD and this is a budget level MoBo from Asus.... what may or may not be safe is somewhat immaterial if the manufacturer's won't warrant your product. I would search AMDs AMP certified compatible list and contact Asus for an answer.

I would note that:

a) According to newegg's data that board only supports "Ryzen Processors, DDR4 2666/ 2400/ 2133"
b) Below 3200, you will likely be able to run that RAM at any of those speeds at 1.2 volts
c) Without seeing the SPD data, i couldn't tell you for sure. Check the Gskill site for specific SPD settings
 
Solution

Thank you, motherboard supports up to 3200MHz in O.C., will I have to OC ram myself to 3000MHz if it doesn't do it automatically?

 
I don't want to give advice here ... we used to do AMD builds when budget was < $850 but we haven't been asked to get involved in a AMD build since 2012 or so.... Board do get updates via BIOS so you will likely have to install the latest BIOS if they have moved up to 3200. Normally, w/ Intel, you just enable the XMP setting and ya done.... tho more often than not I wind up having to push DRAM voltage just a bit. But again, look at the SPD data ... you should have a BIOS selection for each option.
 


I'm going to risk then, hopefully everything will be ok😀 Thank you for your time.
 

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