I bought exactly the RAM again in my PC (https://www.digitec.ch/de/shopList/show/2062acc80f15e141322a4feabd8ed8e4) au so that I should now have 4x8 GB. Unfortunately, the PC no longer starts as soon as the RAM is installed. The CPU control lamp on the mainboard lights up. If I remove them again, everything works. If I remove the "old" RAM and only install the new ones (in the same slot), it doesn't start either (CPU light). Does anyone have a tip or should I expect defective RAM?