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- Intel_80486SX abstract "Intel's i486SX was a modified Intel 486DX microprocessor with its floating-point unit (FPU) disabled. It was intended as a lower-cost CPU for use in low-end systems. Computer manufacturers that used these processors include Packard Bell, Compaq, ZEOS and IBM. All early 486SX chips were actually i486DX chips with a defective FPU. If testing showed that the central processing unit was working but the FPU was defective, the FPU's power and bus connections were destroyed with a laser and the chip was sold as an SX; if the FPU worked it was sold as a DX. Back in the early 1990s, common wisdom held that it wasn't advantageous for most users to have an FPU. Thus, many typical household applications already in existence like word processing and email were designed specifically to avoid using floating point operations. When floating point operations needed to be performed they were still performed, but not in hardware; instead the operations were usually facilitated by transparent software emulation.Some systems allowed the user to upgrade the i486SX to a CPU with a FPU. The FPU upgrade device was shipped as the i487, which was a full blown i486DX chip with an extra pin. The i487 was installed in an upgrade socket and the extra pin was either a power or ground pin that indicated that the i487 was installed. That signal was used to disable the i486SX when the i487 was installed. Although i486SX devices were not used at all when the i487 was installed, they were hard to remove because the i486SX was typically installed in non-ZIF sockets or in a plastic package that was surface mounted on the motherboard.".
- Intel_80486SX thumbnail Intel_i486_sx_25mhz_2007_03_27b.jpg?width=300.
- Intel_80486SX wikiPageExternalLink 27273101.pdf.
- Intel_80486SX wikiPageExternalLink 27276902.PDF.
- Intel_80486SX wikiPageExternalLink ?l0=co&l1=Intel&l2=i486%20SX.
- Intel_80486SX wikiPageID "15164".
- Intel_80486SX wikiPageLength "2499".
- Intel_80486SX wikiPageOutDegree "13".
- Intel_80486SX wikiPageRevisionID "647736965".
- Intel_80486SX wikiPageWikiLink 486DX.
- Intel_80486SX wikiPageWikiLink Category:Intel_x86_microprocessors.
- Intel_80486SX wikiPageWikiLink Compaq.
- Intel_80486SX wikiPageWikiLink Floating-point_unit.
- Intel_80486SX wikiPageWikiLink IBM.
- Intel_80486SX wikiPageWikiLink Intel.
- Intel_80486SX wikiPageWikiLink Intel_80486.
- Intel_80486SX wikiPageWikiLink Intel_80487.
- Intel_80486SX wikiPageWikiLink Packard_Bell.
- Intel_80486SX wikiPageWikiLink Quad_Flat_Package.
- Intel_80486SX wikiPageWikiLink X87.
- Intel_80486SX wikiPageWikiLink Zeos.
- Intel_80486SX wikiPageWikiLink Zero_insertion_force.
- Intel_80486SX wikiPageWikiLink File:Intel_i486_sx_25mhz_2007_03_27b.jpg.
- Intel_80486SX wikiPageWikiLinkText "486SX".
- Intel_80486SX wikiPageWikiLinkText "486SX-25".
- Intel_80486SX wikiPageWikiLinkText "486SX/25".
- Intel_80486SX wikiPageWikiLinkText "486SX/33".
- Intel_80486SX wikiPageWikiLinkText "80486SX".
- Intel_80486SX wikiPageWikiLinkText "Intel 486SX".
- Intel_80486SX wikiPageWikiLinkText "Intel 80486SX".
- Intel_80486SX wikiPageWikiLinkText "Intel486 SX".
- Intel_80486SX hasPhotoCollection Intel_80486SX.
- Intel_80486SX wikiPageUsesTemplate Template:FOLDOC.
- Intel_80486SX wikiPageUsesTemplate Template:Intel_processors.
- Intel_80486SX subject Category:Intel_x86_microprocessors.
- Intel_80486SX hypernym Microprocessor.
- Intel_80486SX comment "Intel's i486SX was a modified Intel 486DX microprocessor with its floating-point unit (FPU) disabled. It was intended as a lower-cost CPU for use in low-end systems. Computer manufacturers that used these processors include Packard Bell, Compaq, ZEOS and IBM. All early 486SX chips were actually i486DX chips with a defective FPU.".
- Intel_80486SX label "Intel 80486SX".
- Intel_80486SX sameAs انتل_80486SX.
- Intel_80486SX sameAs Intel_80486SX.
- Intel_80486SX sameAs Intel_80486SX.
- Intel_80486SX sameAs Intel_80486SX.
- Intel_80486SX sameAs m.03xg5.
- Intel_80486SX sameAs Intel486SX.
- Intel_80486SX sameAs Q2635535.
- Intel_80486SX sameAs Q2635535.
- Intel_80486SX wasDerivedFrom Intel_80486SX?oldid=647736965.
- Intel_80486SX depiction Intel_i486_sx_25mhz_2007_03_27b.jpg.
- Intel_80486SX isPrimaryTopicOf Intel_80486SX.
