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- Newsgroups: comp.sys.intel
- Path: sparky!uunet!cs.utexas.edu!asuvax!chnews!hfglobe!ichips!pdx820!markg
- From: markg@pdx820 (Mark Gonzales)
- Subject: Re: Request for OverDrive technical details
- Message-ID: <1992Nov21.001602.3987@ichips.intel.com>
- Sender: news@ichips.intel.com (News Account)
- Organization: Intel Corp., Hillsboro, Oregon
- References: <Bxz7Jo.Ip6@undergrad.math.waterloo.edu>
- Date: Sat, 21 Nov 1992 00:16:02 GMT
- Lines: 25
-
- In article <Bxz7Jo.Ip6@undergrad.math.waterloo.edu> rbhardin@undergrad.math.waterloo.edu (Ron Harding) writes:
- >A co-worker has informed me that there was some discussion here a while ago
- >about the OverDrive chip. As I understand it, an OverDrive is really a
- >fully functional CPU which just shuts off the original CPU, but requires
- >that the original be left in place.
-
- No, it does not REQUIRE that the original be left in place. In many
- cases, the OverDrive(tm) CPU will be upgrading a system with a 486SX CPU
- which is normally soldered to the motherboard. If your motherboard is
- like that, it is much easier to leave the 'SX in place and plug the
- OverDrive CPU into a socket.
-
- Some motherboards put the original processor in a socket instead of
- soldering it directly to the board. In this case, you can easily remove
- the old CPU when you install the OverDrive CPU.
-
- >
- >I'm particularly interested in a description of how an OverDrive chip knows
- >that the original is in place. Is it just a matter of a couple pins shorted,
- >or is there some complex handshake between the two chips?
-
- The OverDrive CPU does not care if the original is in place or not.
-
- Mark
- --not speaking for Intel
-