Report SPD information incomplete, Lenovo Thinkstation C20 Dual-Processor in Bug reports Posted June 22, 2017 2 hours ago, Fiery said: It's a discontinued product, so if you ping the right person at Lenovo, there's a chance they figure there's nothing wrong handing out such details on an old-ish product... The 2 groups of memory slots are assigned to a single CPU each. Currently I presume that only the SPD of the 1st CPU is recognized. Are you sure this is really a Lenovo issue or might it be a limitation of the Intel Tylersburg 5520 chipset? If Lenovo had followed an Intel reference design the Information needed might already have been published by Intel. Simpler question: Are there other 5520-dual-processor-mainboards, where AIDA64 is able to read all SPD Information (e.g. https://ark.intel.com/de/products/36599/Intel-Server-Board-S5520HC )?