this post was submitted on 12 Jan 2026
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Russian modder makes his own DDR5 memory saving $600 to $800 on single module (videocardz.com)
submitted 3 weeks ago by cm0002@suppo.fi to c/pcgaming@lemmy.ca
8 comments fedilink hide all child comments
 

VIK-on reached out to us to give an update on his self-built DDR5 memory. According to the modder, the donor chips came from two 16GB SO-DIMM modules that cost 8,000 rubles each. A new PCB costs 50 yuan, which VIK-on estimates at about 600 rubles. A basic heatsink from AliExpress added another 415 rubles.

That puts the total build cost at 17,015 rubles, roughly $218, for a single 32GB stick. In comparison to DDR5 memory currently on the market in Russia, that's at least 1/3 of the cost. The DDR4-4800 32GB memory costs 423 USD while 6400 CL32 memory costs 588 USD. A quick check in the US or EU, shows that such memory can easily cost much more than that.

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[–] FishFace@piefed.social 35 points 3 weeks ago

No he didn't. He swapped DDR5 memory on laptop SO-DIMMs onto desktop DIMMs. The article focuses on the form-factor of the source memory and the generation of the result. But the generation doesn't change, and I assume that it is not possible. You can see the source memory here

While it's a cool project and may be useful while laptop RAM is cheaper than desktop RAM, that state of affairs is unlikely to last that long, because the actual chips on the PCBs are the same.

[–] Agent641@lemmy.world 21 points 3 weeks ago (2 children)

To make DDR5 memory, you just tape a DDR2 module to a DDR3 module

[–] Odo@lemmy.world 5 points 3 weeks ago (1 children)

Ah, the Winamp method.

[–] caseyweederman@lemmy.ca 3 points 3 weeks ago

Or how the Wii is two GameCubes duct-taped together

[–] Harvey656@lemmy.world 3 points 3 weeks ago

Wait I thought that multiplied the modules. Wouldn't that be ddr6?

[–] Damarus@feddit.org 14 points 3 weeks ago (1 children)

I don't see any info about him doing stability testing, aside from trying some games. RAM like this should be put through 8+ hours of a dedicated test like OCCT or Karhu for validation.

[–] Truscape@lemmy.blahaj.zone 7 points 3 weeks ago (1 children)

Would something like memtest86+ be also valid?

[–] Damarus@feddit.org 7 points 3 weeks ago

Memtest86+ has the reputation of not being very thorough or stressing the memory and IMC (internal memory controller of the CPU) enough. It can detect physical defects, but often struggles with detecting bad memory timings. When you want to not only find out that a stick of RAM is generally functional but also at what speed it can safely perform at, you need more sophisticated tools.