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It's very easy to increase the Vcore of Abit KR7
and KG7 (Lite, Raid) by soldering just one
resistor to the right point to allow your CPU much higher frequency.
Of course it's necessary to be very careful if you're soldering something
on your mainboard in order not to kill
your board.
And of course your warranty void if you solder anything on your mainboard
!
Therefore i recommend a good grounding and a soldering station with
seperate grounding !
The HIP 6301 is the Abit KR7 and KG7 voltage
regulator (multi-phase Buck PWM CONTROLLER).
This voltage regulator have a pin (FB/pin 7) for the voltage correction
to allow manufacturers an optimal adaption
of the Vcore and we can also use this pin to increase the vcore to "our
correct Vcore" :-)
In my test i used a normal 1/4 Watt resistor with 22
KOhm (red, red, orange).
On this picture you can easy detect the positions of the two soldering
points:
In the enlargement on the top right i've marked both important HIP 6301
Pins with red points.
I didn't solder the resistor directly to the board in order to modify
the resistance value once again.
Just solder the resistor to a cable and then solder this cable to the
marked pins.
After this modification you should check the correct position !!!
Now put adhesive tape or a small piece of heat shrink sleeve over the
resistor that it's impossible to get
a connection with other components.
After this small modification your Vcore should be 0,2
Volt higher than you've selected in your bios.
So if you select a Vcore of 1,5 V the real ! Vcore is 1,7 Volt and with
a selection of 1,75 V you'll get 1,95 Volt.
You get the highest Vcore of about 2,05 Volt
if you set the voltage in your BIOS to 1,85 Volt.
And if that's still not enough for your CPU you could solder a smaller
resistance value but on most boards
is this nearly the highest Vcore without changing the OVP (over voltage
protection) Pin of this voltage regulator.
Pay attention to the CPU temperature after increasing
the Vcore !!!
All pictures and guides copyright 2002 of www.ocinside.de
!
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