SammyV

Your CPU and/or VRM is hitting its power/thermal limits, which causes the throttling behaviour as per your description. Check and see if you can disable Multi Core Enhancement in the BIOS settings. Many Z370 boards had this option enabled by default.

Your display (Optix MAG27QC) has an audio jack, plug in speakers or headset to that and then change the default audio device to that display. Does the crackling still happen?

That seems quite right for a water-cooled system, I don't think you have anything to worry about.

From what I've read, the temperature readings from this series of processors can be a bit flaky. Some say you begin running into issues near or beyond the 70C mark, can't say how accurate that is though. I'd say if you are feeling uncertain, dial down the OC or invest in a beefier cooling solution.

Have you tried your headphones on other devices? Have you tried using external speakers to see if the problem persists? Is there a source of electromagnetic interference close nearby, like a mobile phone, wifi router, or something similar? Is your CPU, RAM or GPU heavily overclocked? I've also come across cases where changing the audio sampling rate to 2 channel, 16 bit, 44100 Hz has solved audio interference issues.

That processor only has one temperature sensor for core temps (as opposed to individual sensors for each core like in newer designs), as evident from your screenshots. The discrepancy between core and package temps in HWMonitor and AIDA64 is a faulty reading, or incorrect calculation of temp from sensor values.

Well, you can probably knock of a couple of degrees off the temps by switching to a high-quality thermal paste. However, the limiting factor here is that it's a laptop, and laptops universally have poor airflow and cooling capacity. Also bear in mind that changing the thermal paste will most likely void your warranty.

Unfortunately I'm not familiar enough with Python or it's API/libraries to give you straight examples of these, but I can provide the basic principles (in case you are not familiar with them): Multithreading is, essentially, performing operations in parallel by spawning multiple threads with pre-determined tasks. Say you have a large collection of objects that you want to manipulate in a certain way, as fast as possible. Instead of processing them sequentially in a for-loop for example, you can create several processing threads, each with their own range of objects from the collection -- many pairs of hands do the work faster than one. I/O operations are slow, especially on mechanical hard drives, so you want to avoid accessing external I/O devices as much as possible. The fast and dirty way to minimize I/O operations would be to read as much of data on disk to memory before performing any operations on that data. That of course means you need to use more memory to temporarily store the data into objects/variables before processing, but you eliminate overhead from a huge number of separate disk accesses. You might also want to look at efficient data structures for string and character data, such as tries and packed tries. These are very common topics, I'm sure you can find lots of clear examples and tutorials for python just by googling or heading to stackoverflow.

For your specific task and system, there is very little that can be 'optimized' with BIOS/hardware settings to produce any meaningful increase in performance. This is all about how you implement your program: appropriate data structures, multithreading and minimizing I/O operations are the obvious candidates.

You might need to manually set memory voltage to 1.35v (default is 1.2v) to get the advertised speeds though.

Nope, adding RAM to available slots will not physically harm your computer, just make sure it's the right type (DDR4 SO-DIMM for current models) and follow installation instructions. Worst case is the memory is not supported and either the computer will not boot when the RAM is installed or the computer will simply not detect the additional RAM.

From the guide I linked: ... 7. Make sure all connectors and cables are plugged in securely, reseat if necessary. 8. Make sure your RAM, CPU and GPU are plugged in securely, reseat if necessary. 9. If the motherboard you're using has debug LEDs, check the error code and consult the motherboard manual to see what it means. 10. If you have a debug speaker connected to the motherboard, note the beep sequence and consult the motherboard manual or this thread to see what it means. 11. Try clearing your CMOS. 12. Try booting your computer with only a motherboard, CPU and one stick of RAM attached (if you don't have an iGPU, plug in your GPU as well ).  ... The above steps are to rule out any other components except for the motherboard, CPU and RAM (and GPU). There's really no way to comprehensively test those without spare parts (unless you have complete board schematics, that is).

Could be an issue with either the settings, memory, CPU, motherboard, all or a combination of those. The troubleshooting section has a guide:

The vast majority of current motherboards, desktop and laptop, only support up to 16GB modules per slot. Also, laptop manufacturers tend to produce several variants under the same model designation, that is your Yoga 720 might have a different motherboard than, for example, the one on a Youtube video that had 16GB of memory installed. Generally, 16GB of memory is plenty for pretty much any task worth doing on a laptop. Whatever you end up doing, it's worth making sure you can get a refund on the memory if it doesn't work.

Yes, they probably do, however OP did not specify the exact part number for the memory and the timings shown in the image did not correspond to any Trident Z Royal memory kits I could find. So what would be the correct QVL to refer to? A large number of memory kits listed in Gigabyte's QVLs are listed under headings of the form " # MHz (underclocked to # Mhz) ", which to me gives the impression that not all memory kits are able to reach stable operation at their rated speeds on this board regardless of XMP/D.O.C.P. profiles or manual settings. Gigabyte's QVLs also points out that memory support is dependent on the CPU used (which is why they have separate QVLs for Pinnacle Ridge, Summit Ridge and Raven Ridge). The obvious answer based only on OP's image would be to set BCLK to 100Mhz and run with the 36x multiplier. This may require altering a number of related settings, and I'm hesitant to guess which settings exactly, given my lack of personal experience with Ryzen platforms.

Your motherboard does not officially support G.Skill memory kits rated at 3600MHz (according to Gigabyte's memory QVLs here, here and here). It is likely that your memory isn't identified correctly, and hence the board defaults to the JEDEC standard (which is 2133 mhz as seen in your image). Several BIOS updates have been released since the latest QVL document, my first step would be to update the BIOS and see if that helps. Based on the information you have provided it is difficult to provide other advice - issues with memory still seem to be somewhat common on Ryzen platforms, you might have to dig deep for a definite solution.