VCore & system crashes

By codecks
Feb 1, 2007
  1. Hello,

    Since a few months now, I'm having a lot of system crashes (bsod's with always the same errors, see following thread:

    My system config is: Pentium 4 3.2g (Prescott 540) - Mobo: Asus P5AD2 Premium. I'm not overclocking, memory has been tested, psu changed, standard bios settings, reinstalled windows,... tested alot of things, still having the system crashes.


    I found out now that by setting the VCore 0.05V higher the system is more stable. I had at least 2 crashes a day, no single crash since the VCore raise. It's now on 1.475 in bios instead of 1.425. Also, Asus PC Probe shows me a Vcore Value of 1.52, this value fluctuates as I put load on the pc. CPU-BurnIn for example. Going from 1.48 to 1.528.

    1. Is it possible that by raising the VCore on a non overclocked system the system is more stable ? Does it mean something ?
    2. Is it normal that the VCore reported by Asus PC Probe & Everest is higher than the setting in the bios.
    3. Are the fluctuation of vcore normal ?
    4. Is the cpu temp getting higher as I raise Vcore ? If so, how does it affect the temp ? By raising 0.05 is the temp going to jump in the air ?


  2. Mirob

    Mirob TechSpot Paladin Posts: 462

    Vcore typicly droops at load, it's called Vdroop. Asus is known for this. Many mobos set Vcore a little hige to compansate. If it's not stabe at stock there is a problem with the CPU or motherboard. If you rase Vcore watch the temps, keep them below 68c at load. I'd contact Intel, they may be able to RMA.
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