home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!cs.utexas.edu!sdd.hp.com!caen!destroyer!ubc-cs!mala.bc.ca!bigras
- From: bigras@mala.bc.ca
- Newsgroups: comp.sys.intel
- Subject: Re: 486sx questions
- Message-ID: <1992Jul31.014039.617@mala.bc.ca>
- Date: 31 Jul 92 01:40:39 -0700
- References: <1992Jul27.135047.13578@nstn.ns.ca> <76814@ut-emx.uucp> <DOCONNOR.92Jul30130104@potato.sedona.intel.com>
- Organization: Malaspina College
- Lines: 31
-
- In article <DOCONNOR.92Jul30130104@potato.sedona.intel.com>, doconnor@sedona.intel.com (Dennis O'Connor) writes:
- >
- > ifaq570@ccwf.cc.utexas.edu (Allen Kitchen) writes:
- > ] Sorry bud, but to upgrade from the 486SX to the 486DX, you will
- > ] need to buy an entire new motherboard. Reason for this is that the SX is
- > ] a 16 bit memory bus, just like the 386. The DX is a 32 bit part, meaning
- > ] the memory is set up to be 32 bits wide.
- >
- > ARG ! NO NO NO !
- >
- > Both the Intel486(tm) SX and DX have 32-bit external busses.
- > The Intel486 DX has an FPU, the Intel486 SX does not. And the pinouts
- > are a tiny bit different. If your 486SX board has the right stuff ( either
- > a "Vacancy" socket or signal-routing jumpers ) you can upgrade
- > it to an Overdrive processor ( equivalent to a clock-doubled 486DX ),
- > or maybe to a DX.
- >
- > In contrast, I think the Cyrix "486" part has only a 16-bit bus.
- >
- >
- > --
- > Dennis O'Connor doconnor@sedona.intel.com
-
- Maybe if the dummies who name intel products
- could standardize their naming conventions
- { wait for the P5slx/2 } this type of confusion
- would be less common.
-
- Tony Bigras
-
- ok
-