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- Newsgroups: comp.sys.intel
- Path: sparky!uunet!cs.utexas.edu!torn!nott!cunews!revcan!quantum!danh
- From: danh@quantum.on.ca (Dan Hildebrand)
- Subject: Re: Request for OverDrive technical details
- Message-ID: <_vqqk#+@quantum.on.ca>
- Date: Sun, 22 Nov 92 22:00:55 GMT
- Organization: Quantum Software Systems
- References: <Bxz7Jo.Ip6@undergrad.math.waterloo.edu> <1992Nov21.001602.3987@ichips.intel.com> <1992Nov22.135356.1160@fasttech.com>
- Lines: 30
-
- In article <1992Nov22.135356.1160@fasttech.com> zeke@fasttech.com (Bohdan Tashchuk) writes:
- >In <1992Nov21.001602.3987@ichips.intel.com> markg@pdx820 (Mark Gonzales) writes:
- >
- >>The OverDrive CPU does not care if the original is in place or not.
- >
- >Well, this isn't quite true. The CPU doesn't care, but the motherboard might.
- >
- >Intel would *prefer* that you left the damn thing alone. They have tried their
- >hardest to muddy the waters by having three different pinouts between DX, SX,
- >and OverDrive. This makes it difficult to just swap in a new chip for an old.
- >The idea being that if you can't swap then you'll leave the old one alone and
- >not glut the market with these pulled chips.
-
- If you look at the 487DX as an attempt to develop a chip which could be
- sold at the retail level as a "speed-up" component for 486SX systems, much
- like the 8087 and 287 used to be sold, leaving the 486SX in place does make
- some sense. It takes a fair amount of familiarity with circuit boards,
- sockets, etc. to wrestle a 486SX out of its socket without damaging the
- board around it ( even with the right tools ). For the level of customer
- likely to purchase this chip as an after-market speed-up, it makes sense
- that they can buy the chip and easily plug it into an empty socket without
- a lot of hassle. I shudder to think how many systems would be brought back
- to the store for repair, mangled in an attempt to extract the 486SX from its
- socket.
-
- --
- Dan Hildebrand email: danh@qnx.com
- Quantum Software Systems, Ltd. QUICS: danh (613) 591-0934 (data)
- (613) 591-0931 x204 (voice) mail: 175 Terrence Matthews
- (613) 591-3579 (fax) Kanata, Ontario, Canada K2M 1W8
-