# Lx2160a 1.35v ram

**URL:** https://community.solid-run.com/t/lx2160a-1-35v-ram/74
**Category:** NXP LX2160
**Created:** [June 10, 2021, 2:34pm UTC](https://community.solid-run.com/t/lx2160a-1-35v-ram/74 "2021-06-10T14:34:48Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![bsder](https://avatars.discourse-cdn.com/v4/letter/b/898d66/32.png) [@bsder](https://community.solid-run.com/u/bsder)
#### Post date: [June 10, 2021, 2:34pm UTC](https://community.solid-run.com/t/lx2160a-1-35v-ram/74/1 "2021-06-10T14:34:48Z")

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Hi,  
what passes should be taken to have a LX2160A board use **1.35V RAM**?

It seems that all the RAMs listed here [Com Express Type 7 LX2160A Tested SO-DIMM Memory | SolidRun](https://developer.solid-run.com/knowledge-base/lx2160a-cex7-tested-memory-so-dimms/) are **1.2V rated**.

The same page reads: _…LX2160A COM express type 7 module core VDD was set to **780mV** ; which is the default setting when shipping the module._

Do I need to change the core VDD (or anything else) to support 1.35V RAM? If yes, how do I do that?

Thank you.

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### Author: ![jnettlet](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/jnettlet/32/62_2.png) [@jnettlet](https://community.solid-run.com/u/jnettlet)
#### Post date: [June 10, 2021, 2:57pm UTC](https://community.solid-run.com/t/lx2160a-1-35v-ram/74/2 "2021-06-10T14:57:45Z")

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the LX2160a CEX7 module only supports 1.2V RAM. It is designed to the JEDEC standard for DDR4.

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### Author: ![sudrien](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@sudrien](https://community.solid-run.com/u/sudrien)
#### Post date: [November 12, 2021, 6:11am UTC](https://community.solid-run.com/t/lx2160a-1-35v-ram/74/3 "2021-11-12T06:11:56Z")

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As a “but can I” answer

I currently have a Crucal bl2k32g32c16s4b 64 GB kit installed - Which is rated DDR4-3200 1.35v

It is running stably thus far, but only with a DDR4-2400 image. So, if you already have the ram, you can try and use it undervolted, but if you haven’t got the ram yet, just get proper 1.2v sticks.

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<div class="post-metadata">

### Author: ![jnettlet](https://dub1.discourse-cdn.com/flex005/user_avatar/community.solid-run.com/jnettlet/32/62_2.png) [@jnettlet](https://community.solid-run.com/u/jnettlet)
#### Post date: [November 12, 2021, 6:23am UTC](https://community.solid-run.com/t/lx2160a-1-35v-ram/74/4 "2021-11-12T06:23:22Z")

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so all memory needs to have a 1.2V Jedec standard timing. Your Crucial memory should run at DDR2666, which on our platform would be 2600 without issues. The speeds beyond that are XMP2 profiles and can require higher voltages.
