Relationship between Linpack and PLL voltage

My processor is currently at 8.5 * 430 MHz, and I tried tweaking to make it stable.
These are my current voltage settings:

vcore: 1.248 v
PLL: 1.58 v
VTT: 1.24 v
NB: 1.3 v
mem: 2.1 v

I went through some posts about PLL voltage and many people suggest that PLL voltage should not go
over 1.6 v; however, my PLL voltage is close to that point, and I'm afraid my CPU will degraded through time.

I tried to lower the PLL below 1.58 v but my computer will fail the OCCT linpack test in a few minutes.

Is there any relationship between the PLL voltage and the stability of linpack?

By the way, my computer passed Prime95 and OCCT CPU test (more than 8 hrs of stressing).

The consensuses is that PLL doesn't do anything to help/hurt overclocking. With that said, keep PLL with in .2-.4 of vcore and you will be ok.

What's the system your working with? Kind of hard to help without knowing.

Simple version : The cpu have an internal clock. This clock use the multi and the FSB to create the CPU speed ( 450 x 8.5 in my case ). This is the PLL, the clock volts. You dont really need to mess with the PLL for "low" OC.

List your complete spec plz .. ?