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Date:      Thu, 07 May 1998 13:01:00 -0700
From:      Studded <Studded@san.rr.com>
To:        "Ross Potts, CON, EDS/D-SIDDOMS" <rpotts@med.osd.mil>
Cc:        freeBSD-hardware@FreeBSD.ORG
Subject:   Re: Overclocking
Message-ID:  <355212FC.39F4DB0D@san.rr.com>
References:  <9805071038.ZM-81133@161.14.168.22>

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Ross Potts, CON, EDS/D-SIDDOMS wrote:
> 
> Boy, you do a simple thing like overclock a P133 to 187.93 MHZ and FreeBSD won't
> hardly boot up half the time!  Where's the quality control!?!?!!

	I know that you're just joking around, but did you try any of the clock
calibration kernel options? I have a P150 overdrive chip that I (bus)
overclock to 166 and the option to calibrate the cpu clock differently
made a huge difference for me. Take a look in LINT, the specific options
I use are:

cpu             "I586_CPU"
options         "CPU_FASTER_5X86_FPU"
options         "CLK_USE_I586_CALIBRATION"
options         "NO_F00F_HACK"

Hope this helps you,

Doug
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