Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!metaware!johnv
From: johnv@metaware.metaware.com (John Vinopal)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 8087 Coprocessor
Summary: 387 overheating.
Message-ID: <532@metaware.metaware.com>
Date: 12 Jul 90 20:34:51 GMT
References: <169@evtprp0b.UUCP> <1990Jul11.172043.525@bigsur.uucp>
Reply-To: johnv@metaware.UUCP (Foo Foo Foo)
Distribution: usa
Organization: Metaware Incorporated, Santa Cruz, CA
Lines: 12

> Stuff about 8087's overheating deleted.

It is common (risky) practice to overdrive chips.  There were 25Mhz 386 boxes
long before the i386-25 was released.  Why then can this not be done with the
387 chips?  I have heard that at least with the 287s the chips are all basically
the same but they have been verified at different clock speeds.  Thus an 8Mhz
is no different than a 10Mhz, but for the fact that the 10 is guarenteed to 
work at 10.  Could someone expand on why a 25Mhz 387 could not be used in a
33Mhz box?  If overheating is the only problem then whats the deal, install a
cooling system.
	
						johnv@metaware.com