The 7430U CPU scandal could spread: Another manufacturer under suspicion, ODM comes into the spotlight

Now there are hints from Golem readers in the comments to the magazine's accompanying report that the units of the Ninkear A15 Pro they bought, which was also supposed to be delivered with the Ryzen 5 7430U CPU, only have a 5500U. The inconsistencies already observed in the CPU information (readable via CPU-Z, for example) in terms of code name, boost clock rates and L3 cache are mentioned as the first indicators, but subsequently also the OPN number, which can be read directly from the soldered chip and clearly defines the CPU. A Ryzen 5 5500U shows the number 100-000000375, while the Ryzen 5 7430U has the number 100-000001471.

We extensively tested the aforementioned Ninkear A15 Pro with the controversial 7430U back in summer 2025 (test device provided by Ninkear) and could not find any abnormalities at that time. According to the CPU-Z information as well as the observed benchmarks, there was no reason to question the use of the stated CPU. A direct comparison of our Ninkear A15 Pro with the recently tested and exposed Chuwi CoreBook X shows an average of 18% better performance in the benchmarks.

Due to the current events, we nevertheless decided to dismantle the entire cooling unit in our Ninkear A15 Pro to expose the processor. The result is clear: the OPN number 100-000001471 unequivocally confirms that our test device is a Ryzen 5 7430U, and the manufacturer is, in this case, exonerated.

The comparison between the Ninkear A15 Pro and the Chuwi CoreBook Plus is interesting in that both laptops appear to use the same mainboard. The CPU is permanently soldered, so there is no possibility for the manufacturer to make changes after production. The silkscreen marking on the motherboard is "EM_AB8139_S_2C_V1.1", which is identical on both devices and refers to the original design manufacturer, Emdoor Digital (Shenzhen Emdoor Information Technology). Our Chuwi test sample affected by the CPU fraud (CoreBook Plus from March 2026) was probably produced much later than our unaffected Ninkear A15 Pro, whose review is now almost a year old. Incidentally, our affected Chuwi CoreBook X (EM_AL525_ENE_CW_V3.2) also comes from Emdoor Digital, our review from September 2025.

So far, we have checked three laptops with an alleged 7430U CPU for a suspected deviating CPU and have found it twice (on two different devices/mainboards, from the same ODM) at the manufacturer Chuwi. So far, any suspicions at Ninkear have not been confirmed - contrary to the aforementioned user information. Nevertheless, it cannot be ruled out at this time that individual batches are still affected and that the CPU may be different - our observations of two devices from different manufacturers with the same mainboard, but manufactured with a difference of up to one year, are a strong indication of this.
With this in mind, we would like to ask any affected users to contact us. We would be very happy to continue to follow this case and contribute to a comprehensive clarification.

A proven extension to other manufacturers would create a new dynamic in that the original design manufacturer would then move into the spotlight. Both Chuwi and Ninkear use so-called ODMs (Original Design Manufacturers - in our case Emdoor Digital) to produce their laptops, which build devices according to the requirements and plans of a manufacturer and deliver them ready for use. This also includes the CPU and the associated BIOS, which must have been modified accordingly to make the deception possible in the first place.

However this case develops: The manufacturer has a duty to ensure that a product it sells meets those specifications with which the device is sold and for which the customer is willing to spend their money.

04.03.2026: Warning: Chuwi CoreBook X uses AMD Ryzen 5 5500U...
12.03.2026: CPU fraud, next round: Chuwi CoreBook Plus with supposed...
14.03.2026: The 7430U CPU scandal could spread: Another manufacturer...