I have installed 2 of these modules in a Lenovo Thinkpad E470, i7-7500U. Compatible according to relevant sources.

The only problem is that the effective clock frequency of the RAMs constantly changes back and forth between 665 and 1065 MHz. HWi and CPU-Z reflect this equally under W10, 1903.

Additional info:
- BIOS latest v2.00
- Speedtest deactivated (CPU works constantly on highest clock frequency)
- both RAM modules are new and identical
- Memtest86 and Win memory test do not give any errors

Does anyone know anything about this?

Question

I have installed 2 of these modules in a Lenovo Thinkpad E470, i7-7500U. Compatible according to relevant sources.

The only problem is that the effective clock frequency of the RAMs constantly changes back and forth between 665 and 1065 MHz. HWi and CPU-Z reflect this equally under W10, 1903.

Additional info:
- BIOS latest v2.00
- Speedtest deactivated (CPU works constantly on highest clock frequency)
- both RAM modules are new and identical
- Memtest86 and Win memory test do not give any errors

Does anyone know anything about this?

Answer

I have installed the two modules in an iMac 27 from 2017 and they work correctly, constantly and without problems at the highest frequency. In the overview, they constantly show 2400 MHz. Can't help you here on the subject of Lenovo Thinkpad?! Best regards

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