High-resolution undervolting outcomes (amazing!)
High-resolution undervolting outcomes (amazing!)
I also tried undervolting my CPU again and achieved some surprising outcomes. (My motherboard is an ASUS ROG Crosshair X670E Gene.) My curve optimizer showed -60 for core 0-6 and stable -30 for core 7. When I ran a CB R23 multi-core test, my score was just above stock levels, and the CPU only consumed slightly over 0.9V spread across all cores. (Typically it's around 1.1V, but this one can reach up to 1.15V.) It seems unusual that I can't apply tighter timings on my memory, which usually works well with other overclocking settings. Maybe the voltage isn't enough for it to function normally?
It seems around -60 across nearly every core works well, while typical AM5 boards usually cap at -30.
It seems -60 isn't really effective and the boundary is -40. Lowering settings doesn't guarantee they work.
Yeah, I mean I can't complain as the difference in gaming compared to the 5950X I had before is really dramatic. Its those 1% low improvements that particularly changes things. I had enough problems with my 5950X locking up when idle on stock voltage, despite being stable with PBO on -20mV under load. For some reason that needs +5mV to be stable at lower clocks, I think because its an early stepping.
Absolutely, I see the distinction you're pointing out. Regarding the 5950x model, it's indeed defective if it fails to operate at the standard operating voltage.
Possibly, but given I've had it since April 2021 and didn't notice the problem back then. It could be the ASUS board it was on before was compensating (ASUS being known for having their voltages on the high side), its deteriorated, or the Gigabyte board its on now is just ever so slightly too low at idle. Googling it seems not uncommon for early 5950X to have this issue, some were RMA and the replacement still did it. This is an OEM chip I bought in a bundle, which also makes it more complicated as I'd have to see what the company I bought it from had to say. They probably have a somewhat valid argument that it worked fine in the motherboard it was supplied with.