Ik heb zelf eeen tusl2-c een ik werd echt stront ziek van dat de voltge niet hoger kan. maar nu wel met deze mod. Ik heb hem van de asusboars.com van luigi. Het werkt me voltage is nu 1.89 volt en vanmiddag als ik tijd heb ga ik echt hard over klokken.
hierro het verhaal
Hi there. Some days ago I bought the TUSL2-C board
to replace my old P3B-F. Immediatly, I tried to
overclock my "old" Celeron 950 up to 1300 and more
but I found a problem: the new TUSL2-C is compliant
with the new Intel spec. WRM 8.5 which specify the
new requirements for the voltage regulator to use
with Intel cpu's up to the new Tualatins. So, the
max. Vcore available is: 1.825 V ! Arghhh !!! Only
1.825 V ??? I need more, more ...
The solution ? Vcore tweaking. The TUSL2-C uses the
Intersil voltage regulator ISL 6524 CB. So, download
the datasheet and application note, compute new
resistor values and try.
The solution is to connect a variable resistor between
the pin 21 (FB) and ground (for example the pin 17).
The value of this resistor should be between 470 Kohm
and 330 Kohm. I tried fixed resistor values (I didn't
find in my box any useful variable resistor) like
100 Kohm or 260 Kohm with bad results. In this cases
the mobo respose was overvoltage alarm (bitonal alarm). While using a fixed value like 470 Kohm I seen a slight rise of Vcore value to indicate the
"right way". Now I'm going to buy a 470 Kohm linear
variable resistor for the final round.
Bye.
Luigi
hierro het verhaal
Hi there. Some days ago I bought the TUSL2-C board
to replace my old P3B-F. Immediatly, I tried to
overclock my "old" Celeron 950 up to 1300 and more
but I found a problem: the new TUSL2-C is compliant
with the new Intel spec. WRM 8.5 which specify the
new requirements for the voltage regulator to use
with Intel cpu's up to the new Tualatins. So, the
max. Vcore available is: 1.825 V ! Arghhh !!! Only
1.825 V ??? I need more, more ...
The solution ? Vcore tweaking. The TUSL2-C uses the
Intersil voltage regulator ISL 6524 CB. So, download
the datasheet and application note, compute new
resistor values and try.
The solution is to connect a variable resistor between
the pin 21 (FB) and ground (for example the pin 17).
The value of this resistor should be between 470 Kohm
and 330 Kohm. I tried fixed resistor values (I didn't
find in my box any useful variable resistor) like
100 Kohm or 260 Kohm with bad results. In this cases
the mobo respose was overvoltage alarm (bitonal alarm). While using a fixed value like 470 Kohm I seen a slight rise of Vcore value to indicate the
"right way". Now I'm going to buy a 470 Kohm linear
variable resistor for the final round.
Bye.
Luigi