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Concept
Sun-4
Summary
Sun-4 is a series of Unix workstations and servers produced by Sun Microsystems, launched in 1987. The original Sun-4 series were VMEbus-based systems similar to the earlier Sun-3 series, but employing microprocessors based on Sun's own SPARC V7 RISC architecture in place of the 68k family processors of previous Sun models.
Sun 4/280 was known as base system that was used for building of first RAID prototype.
Models are listed in approximately chronological order.
{| class="wikitable sortable"
|-
!Model
!Codename
!CPU board
!CPU
!CPU MHz
!Max. RAM
!Chassis
|-
|4/260
|Sunrise
|Sun 4200
|Fujitsu SF9010 IU,Weitek 1164/1165 FPU
|16.67 MHz
|128 MB
|12-slot VME (deskside)
|-
|4/280
|Sunrise
|Sun 4200
|Fujitsu SF9010 IU,Weitek 1164/1165 FPU
|16.67 MHz
|128 MB
|12-slot VME (rackmount)
|-
|4/110
|Cobra
|Sun 4100
|Fujitsu MB86900 IU,Weitek 1164/1165 FPU(optional)
|14.28 MHz
|32 MB
|3-slot VME (desktop/side)
|-
|4/150
|Cobra
|Sun 4100
|Fujitsu MB86900 IU,Weitek 1164/1165 FPU(optional)
|14.28 MHz
|32 MB
|6-slot VME (deskside)
|-
|4/310
|Stingray
|Sun 4300
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|25 MHz
|32 MB
|3-slot VME (desktop/side)
|-
|4/330
|Stingray
|Sun 4300
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|25 MHz
|96 MB
|3-slot VME w 2 memory slots (deskside)
|-
|4/350
|Stingray
|Sun 4300
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|25 MHz
|224 MB
|5-slot VME (desktop/side)
|-
|4/360
|Stingray
|Sun 4300
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|25 MHz
|224 MB
|12-slot VME (deskside)
|-
|4/370
|Stingray
|Sun 4300
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|25 MHz
|224 MB
|12-slot VME (deskside)
|-
|4/380
|Stingray
|Sun 4300
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|25 MHz
|224 MB
|12-slot VME (rackmount)
|-
|4/390
|Stingray
|Sun 4300
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|25 MHz
|224 MB
|16-slot VME (rackmount)
|-
|4/470
|Sunray
|Sun 4400
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|33 MHz
|768 MB
|16-slot VME (deskside)
|-
|4/490
|Sunray
|Sun 4400
|Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU
|33 MHz
|768 MB
|12-slot VME (rackmount)
|}
In 1989, Sun dropped the "Sun-4" name for marketing purposes in favor of the SPARCstation and SPARCserver brands for new models, although early SPARCstation/server models were also assigned Sun-4-series model numbers.
Official source
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