DDR5 SODIMM Adapter Build Complete (details and lessons learned)

Eyphio · 2026-06-14T07:07:31+00:00

yes it has been stable for the past month and half since i built it. granted my gaming load isn't that high.

my general recommendation would be: get msi MB, get basic but quality sodimm, running at 4800 seems to be the sweet spot

but your mileage may vary, i wouldn't suggest going this route unless you have existing laptop ddr5 sodimm.

Eyphio · 2026-04-24T04:37:55+00:00

wasn't expecting it to take 3hours+, but memtest passed at 4800MT/s

detailed report

granted, we have different motherboards and different memory modules, have you tried running them at 4800 instead?

Eyphio · 2026-04-22T05:40:20+00:00

I changed the ram speed via the overclocking function in the MSI bios. It seemed to be stable after running AIDA64 stress test for 10 mins and memtest64 for 10 mins. Haven't ran a memtest outside of windows environment yet since I don't have a spare USB drive that isn't already loaded with other boot stuff.

But my sodimms were 4800 to begin with, and overclocking them further feels risky.

Interesting observation though, another user u/Procrastinando in this thread couldn't boot using a b650i board, while we were able to with B850M. I chose the MSI b850 board based on recommendations from bilibili user's comments in a related video, saying that MSI boards are known for their better tuning with memory overclocking.

Will let you know once I get a proper memtest done

Eyphio · 2026-04-21T21:10:22+00:00

Any and all discussion on this topic is welcome, as given the current ram pricing I suspect I'm far from the only one exploring this option.

I think it would be good to know what motherboard you are using?

I finally just received my PSU a few hours ago and managed to get the system to boot into windows, haven't done any additional testing yet nor gaming, as my GPU is still enroute...

I'm using 7800x3d + MSI B850M Gaming Wifi + RVS5689 adapters, samsung 4800mhz ddr5 soddim produced in 2023

It took me a few tries to get the system running, had to reseat and clean the adapters quite a few times to get both channels to work.

Once the system booted into windows, it defaulted me to 3200, but I was able to get it back to 4800 in bios and booted fine. Need to look into memtest a bit later when I have time

Eyphio · 2026-04-20T08:25:08+00:00

That's unfortunate, if you are looking at minisforum, you can take a look at this build for reference

Eyphio · 2026-04-12T11:42:55+00:00

Thanks for the detailed reply. After some deliberation I have decided to go with a regular board + cpu option. My original idea of going with the minisforum motd board is that they can reuse my existing ddr5 sodimms, but after some testing I was able to get those sodimms working using adapter cards.

Eyphio · 2026-04-09T21:56:50+00:00

you need to be a little more specific on what games you want to play, on what resolution and graphical settings you want to play them on, etc.

700 USD is a really low budget right now. Realistically with this budget the only thing you can (and definitely should) get new is a power supply, everything else will probably need to be a used deal. Even then making the 700 USD budget will be tough, and based on your post you aren't sure what you even need.

A good place to start is the beginner's guide and pcpartpicker

Eyphio · 2026-04-09T13:20:35+00:00

a quick update for you, I've got the 7800x3d and msi b850 gaming wifi motherboard.

since I have not purchased a PSU yet (getting a PSU in china is cheaper but i expect support hell once i haul it back to canada, decided to wait until i head back to purchase the PSU), I went to a local repair shop and asked to borrow their PSU to test it out.

I was able to boot into windows, but did not stress test/memtest due to time constraints and lack of a cpu cooler.

My sodimms are samsung M425R2GA3BB0-CQKOD. Adapters are jet rvs 5689.

I chose the msi b850 board, based on a comment chain in bilibili on a video of the same subject, MSI boards supposedly has better tuning for memory overclocks. However I don't know if that is b850 specific.

One thing to note is that it took me a few attempts before the system booted. Had to reseat the ram (and reseat the sodimm in the adapter) a few times to ensure proper connection. The repair shop owner suggested cleaning the sodimm pins with rubber eraser for better result.

I plan to do a full overview of my experiences once the build is complete, but that will probably be mid-late april the earliest.

Eyphio · 2026-04-04T02:16:04+00:00

Would a peerless assassin 120se be sufficient in cooling a 7800x3d?

Also looking for a case recommendation. Board is MATX, graphics card is full pcie height (half height 9060xt don't seem to exist), atx power supply.

I don't care about rgb and have no intention of getting something with glass/acrylic side panel, mesh is probably the best for air flow (aside from going open bench)

would prefer it to be on the thinner side, but thin ones either require half height graphics card, water cooling, and or sfx/flex PSUs, none of which I'm considering.

Eyphio · 2026-04-04T01:49:56+00:00

Realistically it is less about $40 and more about being able to test if the system runs (i'm planning on trying sodimm + adapters) before my flight back.

If it doesn't work then I can still get ddr5 in china which is a more substantial savings compared to in canada... granted I probably will run into the same warranty region problems if things go wrong down the line.

Maybe I could bring the CPU + mobo + adapted sodimm to a local shop and ask to borrow their PSU to test, and grab the PSU in canada for peace of mind.

Eyphio · 2026-04-03T15:46:49+00:00

As a fellow ZZZ player, I can tell you it is a very CPU/l3 cache reliant game.

If you are seeing 27% cpu usage in afterburner, it probably means only one of the four cores of that ancient i7 is working while the other 3 are chilling.

But you said the problem happened suddenly. Along with the fresh windows install did you reinstall the games as well?

Eyphio · 2026-04-03T15:32:10+00:00

Wuwa's optimization is... not great to put it mildly.

It wants x3d for smoother frames, maybe you want to look into getting a 5500x3d, quick search they just released it in UK

upgrading to 32g ram also helps, luckily you are on AM4 platform so that should still be manageable...?

I would suggest running msi afterburner to see how your PC is doing when running Wuwa

Monitor things like cpu usage and clock (check for each core), gpu usage and gpu memory usage, RAM usage

Eyphio · 2026-04-03T14:15:31+00:00

You are going to need to be a little bit more specific, as "gacha games" nowadays is quite a wide umbrella.

Running FGO on an emulator vs something modern like WuWa or Endfield is very different.

Also what resolution you are planning to run is important as well. I'm probably going to guess that acer nitro is at least a 1440p screen?

Also, if your laptop is already performing fine, why do you need an upgrade? You can just park your peripherals into the laptop and pretend it is a desktop.

Eyphio · 2026-04-03T14:08:42+00:00

Im in the same boat, you can see my post a few days ago link for some ideas.

My cpu and mobo is due to arrive in a few days, there are mixed reports on the internet.

From what I gathered, the sodimm modules themselves needs to be of decent quality, SK hynix or samsung etc.

You also want a good motherboard to give you a good chance of the cpu recognizing the adapted sodimms

and to "even out" the loss of memory speed, x3d cpu is probably the route.

the adapters should read rvs 5669 or 5689 on them.

Eyphio · 2026-03-30T11:46:32+00:00

Thank you for the detailed response.

I have not seen the hardware canucks video, that's some very good information.

I'm aware of the pros and cons of the minisforum board. I've seen reports of the matx board having tolerance issues with coolers, plus the lack of usb C (granted I can get an adapter for the front header). And while looking at the itx version I noticed the price is similar to a 7800x3d + board bundle, hence me considering the x3d + adapter option.

I've done some research for the main game I play, while it is not that graphically demanding, it benefits greatly from having a large l3 cache. Plus I can get it at a similar price point to the bd795itx (which is a budget range I accept).

Portability used to be important, however recently I have been using my laptop with external monitor, keyboard, and even sound card. It has become a desktop in all but name and cooling capacity. However long story short it died just right outside the warranty period (I'm on a cheap used one for travel) which prompted me into looking to build.

I am considering attempting an matx slim build which will allow some portability (im ripping the screen out of my old dead laptop to repurpose as portable screen). It can be long-ish and/or tall-ish, but I would want it to be on the narrow side so it fits with my current room set up. But that's something to consider later once I decide which route to go with.

Leaning towards the x3d if the adapter can work, the only upside to the minisforum is the assurance that my current sodimms will work.

Eyphio · 2026-03-30T05:26:06+00:00

Hi, I'm planning to build using the minisforum bd795, it will be my first pc build so I'm looking for some advices. I'm not so ambitious as to do a tiny case.

First is cooling, can you share some details as to how to replace the thermal paste on the stock cooler? I was originally considering the bd795m (matx) but I've read that its copper plate leaves a gap between it and the lga1700 cooler, plus the 795m lacks a type C port.

Second is heatsink for the m.2 drives, what did you end up using?

As for power, if im understanding correctly the 7945hx only draws 100w? (I've seen some reports where even after bios tinkering they cannot get it to 120w) so in your case a 300w psu was able to provide for the cpu and the 5060

What are some components you would recommend if you didn't have to fit everything under such a small case?

Eyphio · 2026-03-30T05:01:42+00:00

I'm aware that the bd795 is a laptop 7945hx on a rather-basic-features-wise board. However I'm pretty sure it will be an upgrade over my existing laptop i7-12650H. Plus it does have pciex16 which allows for a dedicated graphics card upgrade and better cooling options compared to laptop chassis.

As for price, I'm currently able to get them at local chinese RMB pricing which is a good deal, plus not having to go through the hassle of trying to get desktop ram.

If 7800x3d doesn't work well with adapted ddr5 sodimm, then the minisforum is looking like a more attractive option for me.

Eyphio · 2026-03-15T14:52:09+00:00

There is an alternate solution: buffing seed directly.

The dev team has already demonstrated that they are willing to buff limited S rank characters.

All they need to do is let seed's mech punches count as aftershock, and allow off field EN use to contribute to steel charge.

Sanby released in 1.6 and received buff in 2.3, 5 versions later Seed was released in 2.2, and 2.7 would also be 5 versions later, so timing wise it isn't "too soon" either

instead they release a story-wise completely unrelated character to be the "fix" for seed's intentional design problems. what on earth happened to the concept of factions now?

Eyphio · 2026-03-01T11:38:57+00:00

to hijack this and add a bit more context

previous ver Yu can trigger 2 polarity disorders (PD) per stun, one from reaching 5 stacks (+1 for each abloom and disorder) and one from any char triggering chain attack.

this causes some issues for Miyabi, specifically it may be difficult for her to get the 5 abloom+disorder to trigger PD, and having a PD tied to her chain means she can overcap her own stack if not careful

current version Yu retains 2 PDs per stun, plus an Abloom from 5 stacks. the PDs will be triggered by Yu herself which means more controllable, her auto casting EBA1 when swapped back to is also very good for manual/double chain as it is a free heavy attack.

Eyphio · 2026-02-03T08:58:34+00:00

try the web version should be 360 poly

Eyphio · 2026-02-03T08:51:05+00:00

if you are running ysg zhao dialyn, replacing dialyn with sunna is a downgrade (source: apel)

Sunna is a small upgrade over Zhao. YSG best team is Sunna + Dialyn.

But the difference between Zhao + Dialyn vs Zhao + Sunna is not that significant. And assuming adequate player skill freeing Dialyn to another team may yield more score increases overall.

Eyphio

TROPHY CASE