Dennis Nicholls
Senior HTF Member
I discovered that the memory in the used Dell 3060 I bought was a lower speed than specified: 2400 Mhz versus the specified 2666 Mhz. I discovered it was quite difficult to search out the determination of whether this was an issue or not. I finally discovered this article on a "gamer" forum which discusses how RAM speed is set by the BIOS at power on.
www.pcgamer.com/what-are-xmp-profiles-and-how-do-i-use-them/
So the answer is simple: the slower RAM merely affects overall system performance, but won't cause BSOD system crashes. That article also steered me to a very useful utility program called CPU-Z that reads and displays many normally hidden parameters of your PC. It is available for free download here: https://www.cpuid.com/softwares/cpu-z.html
www.pcgamer.com/what-are-xmp-profiles-and-how-do-i-use-them/
When you power on your computer, it conducts a power-on self-test. Part of this process includes automatically configuring installed hardware, including your memory. Your computer needs to know the model of your RAM as well as which timings and frequency to set. Your BIOS will use a small chip on your RAM modules called an SPD (serial presence detect) chip to set memory timing and frequencies properly.
So the answer is simple: the slower RAM merely affects overall system performance, but won't cause BSOD system crashes. That article also steered me to a very useful utility program called CPU-Z that reads and displays many normally hidden parameters of your PC. It is available for free download here: https://www.cpuid.com/softwares/cpu-z.html