Fake DDR5 SO-DIMM spotted with dummy chips
Fake DDR5 memory modules appear to be circulating through Japanese second-hand marketplaces. The warning comes from X user TAKI, who says a friend purchased a DDR5 SO-DIMM that looked normal at first glance.
After removing one of the memory chips and cutting it open, the module turned out not to contain real DRAM silicon. TAKI first described the parts as plastic, but later corrected this and said the material was likely fiberglass.
Source: @taki_pc_1115
The module shown in the post carries a memory label, but users pointed out several signs that it may not be genuine. These include rounded PCB edges, a lighter board color, a different PMIC shape, and mismatched markings on the memory packages. Another X user also linked a Yahoo Auctions listing and said similar modules had appeared on Mercari.
Source: @ri_dial
TAKI says the case is easier to spot with laptop memory because the chips are visible. Desktop DDR5 modules may be harder to check, because most consumer kits use heatspreaders that hide the PCB and DRAM packages. This makes used or untested DDR5 kits more risky, unless the buyer can compare the layout with verified photos by part number.
This is not the first DDR5-related scam we have seen. We previously reported cases where sealed DDR5 kits contained older DDR2 modules, and another case where DDR4 was hidden under DDR5-style heatspreaders. Corsair also changed packaging for some Vengeance DDR5 kits earlier this year to make tampering and dummy-return fraud easier to detect.
注意喚起
DDR5のメモリの偽物が出回ってます。
一見すると普通のメモリですが、実際に搭載されているチップはただの基板、プラスチックの板です。取り外して切断して確認しました。
動作未確認のメモリーとかマジで購入する際は気をつけてください！
4090の悲劇を起こさないように！ pic.twitter.com/gcKAjRDUei— TAKI (@taki_pc_1115) May 10, 2026
Source: @taki_pc_1115
