Originally Posted by nezzarix
I've been looking for documents to prove/refute that such small PLL voltages is harmful for the CPU. It's well accepted that too much will kill a faster faster than anything, but I can't really find any info on too little... Intel's SB specifications state that 1.7v is the minimum but doesn't mention if it's detrimental to run a bit less.
1.7v has been working wonders for me but I want to know for sure before experimenting even further with it. PLL voltage is a dangerous thing to screw up.
Well on the other thread I made about two hours before this, asking about PLL undervolting, a guy replied saying he had been using something like 1.3v, or w/e it was similar to that, for about 6 months upwards on his i7 9something, no problems at all. Search for threads made by me to find it, it's on this same category board.
EDIT: Additionally I've tried Prime95 for 10 minutes, OCCT for 15 minutes on medium data, and LinX using all memory 5 times, and no instability. I've knocked it down another -0.010v from the previous setting on the vcore, will test that for 30-45 minutes as errors usually occur in that timeframe.