Date: Sun, 30 Mar 1997 21:01:25 -0800 From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@MindBender.serv.net> To: Paul Southworth <pauls@locust.etext.org> Cc: freebsd-hardware@freebsd.org Subject: Re: Crashes with 6x86L-P200+ Message-ID: <199703310501.VAA01099@MindBender.serv.net> In-Reply-To: Your message of Sun, 30 Mar 97 21:29:18 -0500. <Pine.NEB.3.95.970330211027.17917A-100000@locust.etext.org>
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>Yes, another annoying Cyrix owner. I won't ask you why it's not
>recognized as a Pentium because I don't care. I bought a 6x86L-P200+ and
>a Mustang R534E motherboard with SIS 5571 chipset (yes, it really supports
>the 6x86-P200).
>The machine runs fine for an hour or two and then crashes regularly. No
>obviously replicable action appears to be crashing it, other than that it
>generally crashes as soon as any significant load is incurred (eg, running
>glimpseindex, running a dump to tape, compiling libc). The same machine is
>currently running an Intel P5-133 with no problems (same everything, no
>changes other than motherboard jumper settings for the P5-133).
Two things I can think of:
Your memory can't handle running at 75MHz (most machines, including
your Pentium at 133, run the memory bus at ~66.7MHz). Try turning the
memory to a slower "speed" in the BIOS. (For example, if you have a
setting that sets the memory to x222 access (how many cycles per
word access), try x333)).
Your heat sink might not be tightly attached to the chip. Even a
small gap, or looseness, will make the chip overheat and be crash-
happy. Make sure there is a tight surface-to-surface connection
across the entire face of the chip and heat sink.
-----------------------------------------------------------------------------
Michael L. VanLoon michaelv@MindBender.serv.net
--< Free your mind and your machine -- NetBSD free un*x >--
NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3,
Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32...
NetBSD ports in progress: PICA, others...
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