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Home » Forums » Forum Archives » Motherboards, Chipsets, Processors, & Memory » Topic # 67

darrenpatton May-19-00 03:35 PM
I have an AMD 333 k6-2 lying around. My sister has a AMD 266 K6-2 in her computer. I'm pretty sure hers runs at 66 mhz bus speed and I know mine is 100 mhz. Also, I don't see a way to adjust the clock speed on her motherboard. I am going to have to check the core voltage ( I just thought of that). Can I use the 333 even though I can't adjust for the bus speed or the clock speed and would it do any good?
Thanks Larry.


1. RE: underclocking
lbyard May-19-00 04:56 PM
In response to message 0
Darren, A 333 Hz K6-2 can be operated at 266 Mhz, but what would you gain over a 266 Mhz processor if you did that? A 266 Mhz processor that can be sold and a 333 to keep until a new motherboard is purchasedÖ To run it at 333 Mhz, with a 66 Mhz FSB clock, the motherboard would have to have a 5X multiplier capability. Choose the highest multiplier below that if it doesnít. The multiplier is usually set with one or more jumpers, but is done in the CMOS Setup for some motherboards (e.g., the Abit TX5). K6-2ís in those core frequency ranges have a core voltage of either 2.2 or 2.4 volts. Be sure it is set correctly on your Sisterís motherboard for the 333 Mhz processor. The core voltage should be printed on top of the CPU. The retail versions of the processor may have the heat sink-fan is glued-on to the top of the CPU with thermo compound, which can make it rather difficult to remove. I gently pry them loose with a very small screwdriver (tweaker). Be careful not to bend the CPU pins! If you do bend them, see http://duxcw.com/digest/Howto/buildcom/super7/build3.htm. Or, get the Vcc2 from the settings on your motherboard. If you donít have the motherboard book for your motherboard or your Sisterís, you may find it on the Internet, if you can determine the motherboard/computer manufacturer. If you canít determine the manufacture, you may find an FCC number on the board. It may be silk-screened on the top of the board (look between the expansion board sockets and along the back) or on a label on the left side of the furthest left expansion board socket (use a mirror). With the FCC number you can find the manufacturer by using the FCC database at: http://www.fcc.gov/oet/fccid/. Larry

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