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Re: [cobalt-users] Core voltage of Qube 3 CPU

>On Sunday 25 May 2003 09:19, Greg Hewitt-Long wrote:
>> >There are two versions of K6-2 450MHz: one with 2.2V core (AFX) and the
>> > other with 2.4V core (AHX).  How can I know whether the CPU in my Qube 3
>> > is 2.2V or 2.4V.
>>
>> Take it out, remove the heat sink, clean the heat compound off and look at
>> the letters on the top of the cpu.
>>
>> I would be willing to bet that it's a 2.2V cpu - I think all of them are,
>> but you need to check your own.
>>
>> Why wouldn't you drop in a 500Mhz if you're replacing it?
>
>The 450Mhz CPU socket on RaQs and Qubes have all speed-select pins grounded,
>in other words it is difficult to change the speed. One work around may be to
>break the pins off the CPU.
>See the chart at http://www.raqware.com/cpu500.html BF2-BF0 are '0', so all
>are at ground level.
>However, a 500 Mhz CPU will work in the 450Mhz system, it will run at 450Mhz.

My mistake - I've clocked a number of 300Mhz machines and didn't appreciate that the 450mhz machines were wired differently.  That's definitely worth knowing.
regards

Greg



>Gerald

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