While I'm providing an outrageous potential 1300W to the entire system, it seems unlikely the Ryzen 7 7800X3D will ever reach its max PPT of 162W. Part of the 6nm I/O die feature set is sophisticated power management carried over from AMD Ryzen 6000-series mobile processors. Extreme gaming performance is the aim here, so it'll push for the TjMax and hold steady whenever possible. It's not an absolute max but more of a performance target, and it will throttle itself if needed. I haven't found any adjustments in the BIOS that can make any adjustments that have been suggested.The Ryzen 7 7800X3D might have a suspiciously low TjMax temperature of 89☌, but AMD assures me the CPU is designed to run constantly at this temperature without any risk of damage. If I add to 2 & 4, CPU-Z begins showing single channel.

One curious observation is, the app CPU-Z, shows dual channel with ram sticks in 1 & 3. When I begin adding more 4gb ram in slot 2 & 4, the unusable ram message appears. When I install two 4gb of ram in slot 1 & 3, Windows system shows all 8gb. The ram from the spare pc shows the same problem of half ram in the suspect pc. The ram from the suspect pc runs fine in the spare pc. The Memtest86 ran all night with no errors. This Gigabyte GA-970A-DS3P motherboard has no onboard graphics nor does the AMD FX8320 CPU. In place of the better card I used, which has 2gb onboard.

All that remains is the OS drive and another graphics card, which is showing 4gig of resources in addition to its own 512mb. At the moment, all peripherals are removed from the suspect pc. Not sure of your suggestion of 'apportionment'.

Cpu z 3200mhz ram