Voltage problem Abit KT7raid

[DiRtY wIzArD]

Hi, i have a Abit KT7 raid motherbord and a Athlon 900 Mhz @ 1,1Ghz.
My voltage is now 1,85 but I just can't set a higher voltage then that .
Is it normal with my motherbord??
I saw other persons with a Abit KT7raid and then can go higher.
I have the latest bios so ...

[Hoot]

There are two modifications you can install. They are typically referred to as Phase 1 and Phase 2 mods. Phase 1 involves jumpering either a fixed or variable resistor between pins 7 and 9 on the core voltage control IC. That allows you to up the voltage. Phase 2 involves tricking the overvoltage protection on the same IC so it doesn't think your higher voltage setting is a problem. That involves placing another fixed or variable resistor between pins 9 and 10 on the same IC. I used a pair of 20-Turn 50k ohm trim pots and some 30ga wire-wrap wire. Mounted them on the motherboard with a small L bracket and some double stick tape. I forget where, but there are plenty of how- to articles around. Try searching on KT7 and voltage mod. That's how I found them.

Hoot

[Colin]

Solder wires to Pin 7 and Pin 10 of the IC that controls the voltage to the CPU. Put a 47K trimmer (49 cents at Radio Shack part # 271-283) between each wire and ground. Use a spade lug or loop under a motherboard mounting screw for your ground connection. For convenience I suggest you mount the trimmers on a piece of breadboard and secure it to your motherboard tray with Velcro.

Pin 7 controls the voltage, Pin 10 controls maximum voltage threshold. Turn the trimmers to full resistance boot your PC and start VIA Hardware Monitor. Set the polling interval to 2 seconds and slowly dial up the pin 7 trimmer until the voltage peaks. This should be about 2.1 volts. Then dial up the Pin 10 trimmer until your screen blanks and back it off a tad. Your PC will probably reboot when the screen blanks. Go back into VIA Hardware Monitor and dial the Pin 7 trimmer up to 2.3 volts. You may be able to go higher but I don’t recommend it.

Caution this will stress your cooling. Be careful or your CPU could end up a crispy critter. I also suggest buying a third hand device from Radio Shack to hold a pre-tinned wire to the IC leg while you solder. The magnifying glass on the third had will come in handy too. Get in and out fast so you don’t toast the IC. Lay off the caffeine and if you are of age, have a beer a half hour before soldering to steady your hands.

Be sure to tie your wires down to the board. After doing several boards, I finally screwed one up. The mod went fine but I snagged the wire to Pin 10 on the end of my workbench and ripped the IC pin and trace right off the board.

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