old EPOX MVP3C-M voltage problem

Archived from groups: alt.comp.periphs.mainboard.epox (More info?)

Hi!
I recently got used MVP3C-M. I also have AMD K6-2 400 and Pentium 166 w/o
MMX. At the beggining
everything was going fine - the board was working excellent and very
stable - even with O/C . I was even able to
set up windows xp and 2003 server on this machine (128 mb of ram). But, now
I have a very strange problem -
some time ago whole system has crashed - blank screen and it didn't wake up
even after reset. After a few
attempts i figured out to change the multiplier from 5X to 4X and the
computer started working again but...
after a few hours of hard work (prime 95) the same thing happend - blank
screen and no sign of life. And again - lowering
the frequency helped. But now the cpu is underclocked and works with
extremly low voltage - 1,4 V - it's as low
as some Pentium 4 . My problem is - WHY this board does not react for the
VCORE jumper setting - it appears that the
voltage level is somehow set by the board itself. Another thing is when I
swap cpus and put old Pentium 166 (no MMX)
into socket the board sets the cpu core voltage to 3,5 - nothing higher and
nothing lower. Changing the jumpers
have no effect - with K6 it's 1,4V - 1,6V and with Pentium it's 3,5V. Is
this end of this fine board ? Is there any workaround ?
Has anybody had similiar problems ?? Thanks in advance for help
£ukasz (Lukasz)