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463:(non-textured) modeling. When expanded by adding a TRAM (Texture RAM) module to the board, the amount of texture memory can be increased to 4 MB. Maximum IMPACT graphics require two of these modules due its two pixel units, although this does not upgrade them to 8 MB, with the two modules merely working in parallel to render twice as fast. Of all contemporaries, Maximum IMPACT graphics is the world's fastest desktop visualization solution. A Maximum IMPACT with 4 MB of texture memory and the correct graphics settings can play the first three of the
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up a single GIO-64 slot, the mid-range High IMPACT takes up two GIO-64 slots, and the high end
Maximum IMPACT occupies three. The High IMPACT and Solid IMPACT boards provide the same performance for non-textured tasks, while the Maximum IMPACT provides double the performance. The High IMPACT AA option has the geometry performance of a Maximum IMPACT, but is otherwise the same as the High IMPACT including the pixel fill performance.
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SCSI bus speed of the Indigo2 is about 10 MB/s. The typical hard disks are narrow (SCSI-1) 5200rpm and 7200rpm drives. All of the Indigo2 drive sleds have a 50-pin female SCSI-1 connector and standard 4-pin power connector. Advanced U160 and U320 SCSI disk drives can also be used but then one needs appropriate adapters (80/68-pin to 50-pin SCSI).
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The MGRAS IMPACT (or just IMPACT) family include the Solid IMPACT, High IMPACT, High IMPACT AA, and the
Maximum IMPACT. These newer boards have a different architecture than the earlier designs. Physically, they appear to be similar to the older graphics options; the low-end Solid IMPACT board takes
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All Indigo2 models can accommodate two 3.5" SCSI disk drives and one 5.25" SCSI CD-ROM drive inside bays on the front of the machine, using specially designed Indigo2 drive sleds with proprietary connectors. All three drive bays are easily accessed when removing the Indigo2 front bezel. The internal
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memory modules seated in groups of four. Indigo2 can be expanded to a thermal specification maximum of either 384 MB or 512 MB RAM. The design of the memory control logic in R10000 machines support up to 1 GB RAM, but the thermal output of older generation of DRAM chips necessitate the 512 MB limit.
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Indigo2 desktop workstations have two models: the teal Indigo2 and the purple IMPACT. Both have identical looking cases except color, and sub-model case badging. The CPU types, the amount of RAM, and graphics capabilities, depend on the model or sub-model variation. Power Indigo2 is a version of the
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The IMPACT boards draw more power than the GIO-64 bus can deliver, so IMPACT-ready systems have additional power connectors on the expansion riser card, with a separate connection to the power supply. An IMPACT-ready Indigo2 must have an IMPACT-ready riser card, an IMPACT-ready power supply, and a
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The IMPACT graphics is the first desktop graphics system from SGI to offer texture mapping acceleration, though only the High IMPACT and
Maximum IMPACT had this capability, and comes with 1 MB of texture memory as standard. The Solid IMPACT card is named "Solid" due to its applications for solid
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10Mbit on-board LAN interface, 100Mbit LAN options were made by third parties, either via EISA or GIO64 expansion cards. The two most known and widely used Indigo2 network cards are the 3Com 3C597-TX 100Mbit EISA, and the Phobos G160 GIO64. The second one offers better overall performance due to
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It is possible to have a dual-head Indigo2 by merely adding another Solid IMPACT card. Valid configurations include Solid/Solid, Solid/High, Solid/Maximum. Although there are four GIO-64 slots available and the High IMPACT takes up two, it is not possible to have a High/High configuration.
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With newer, higher-density and smaller scale modules, 768 MB is easily within heat output specifications. Later 128 MB modules allow the full 1 GB with eight out of twelve sockets occupied.
386:(IP28 mainboard), which are featured in the last produced Indigo2 model, the IMPACT10000. Each microprocessor family differs in clock frequency, and in primary and secondary cache capacity.
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which differs from the Indigo2 only by a slightly differently colored and badged case, and the absence of graphics and sound hardware. Both systems are based on the
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performance. The later IMPACT Indigo2 workstation model has more computational and visualization power, especially due to the introduction of the
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The graphics options available for the Indigo2 can be divided in two groups: the pre-IMPACT and the MGRAS IMPACT boards.
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451: (equivalent to $ 53,800 in 2023) and the Indigo2 XL was launched in third quarter 1993 at
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using the superior GIO64 bus, which also has the effect of reducing the CPU utilization due to
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443:. These options are based on the same Express Graphics architecture from the original
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Pre-IMPACT options consist of the following options: Indigo2 XL24, Indigo2 XZ,
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All Indigo2 motherboards have 12 SIMM slots, for standard 36-bit parity 72-pin
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SGI Indigo2 IMPACT and a promotional SGI espresso machine in an Indigo case
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connector for connecting the monitor and another connector for 3D
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561:. Vol. 115, no. 8. August 1993. pp. 8, 98.
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Remotely installing SGI IRIX 6.5 from a GNU/Linux server
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http://www.sgistuff.net/hardware/systems/indigo2.html
49:. Unsourced material may be challenged and removed.
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472:All graphics options for Indigo2 use the standard
366:All Indigo2 models use one of four distinct MIPS
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329:preceded the Indigo2, which is succeeded by the
469:video game series with acceptable frame rates.
266:Badge for a Power Indigo2 with Extreme Graphics
554:"A Workstation with Built-in Video Capability"
382:(IP26 mainboard); and the 175 to 195 MHz
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378:R4600 (IP22 mainboard); the 75 MHz MIPS
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109:Learn how and when to remove this message
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253:
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492:revision. The Indigo2's successor, the
455: (equivalent to $ 38,000 in 2023).
370:variants: the 100 to 250 MHz MIPS
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620:http://www.NetBSD.org/Ports/sgimips/
605:http://www.obsolyte.com/sgi_indigo2/
47:adding citations to reliable sources
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13:
600:http://www.sgidepot.co.uk/indigo2/
14:
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322:expansion bus via a riser card.
288:which were designed and sold by
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34:needs additional citations for
679:Silicon Graphics International
625:http://www.linux-mips.org/IP22
1:
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58:"SGI Indigo² and Challenge M"
615:Indigo 2 Power Supply basics
7:
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151:; 32 years ago
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299:"Fullhouse", is a desktop
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358:CPU and IMPACT graphics.
348:floating-point arithmetic
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318:bus and SGI proprietary
820:Indigo² and Challenge M
342:teal Indigo2, with the
303:. The Challenge M is a
762:Wavefront Technologies
559:Mechanical Engineering
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376:Quantum Effect Devices
361:
267:
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140:Silicon Graphics, Inc.
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258:Indigo2 IMPACT R10000
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16:Workstation computers
1008:Related technologies
870:Origin and Onyx 3000
488:sufficiently recent
292:from 1992 to 1997.
274:(stylized as "Indigo
43:improve this article
1040:Interactive Desktop
983:Reality Coprocessor
374:and R4400, and the
346:chipset and strong
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906:Visual Workstation
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731:Abbey Silverstone
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1111:SGI workstations
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54:Find sources:
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32:This article
30:
26:
21:
20:
1020:Image format
819:
757:Kroyer Films
740:Acquisitions
576:– via
570:. Retrieved
558:
547:
500:SGI timeline
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478:stereoscopic
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286:workstations
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206:16 MB – 1 GB
164:Discontinued
146:Release date
136:Manufacturer
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
1116:SGI servers
1090:Nintendo 64
860:Origin 2000
721:Marc Hannah
696:Kurt Akeley
681:(2009–2016)
675:(1981–2009)
424:transfers.
301:workstation
277:") and the
272:SGI Indigo2
211:Predecessor
1105:Categories
978:IrisVision
855:Origin 200
539:References
494:SGI Octane
445:SGI Indigo
415:Networking
312:processors
225:SGI Octane
215:SGI Indigo
99:March 2021
69:newspapers
1030:WorkSpace
845:Challenge
726:Herb Kuta
567:230145198
480:glasses.
297:codenamed
221:Successor
1085:NUMAlink
992:Monitors
791:SGI IRIS
772:Computer
578:ProQuest
572:March 5,
563:ProQuest
453:$ 18,000
449:$ 25,500
428:Graphics
337:Overview
1070:OpenLDI
1060:IRIS GL
953:Extreme
894:Itanium
830:Crimson
810:IRIS 4D
666:Company
441:Extreme
406:Storage
354:series
314:, with
231:Website
169: (
154: (
122:Indigo2
83:scholar
1065:OpenGL
1035:4Sight
999:1600SW
958:Impact
898:x86-64
840:Octane
815:Indigo
689:People
565:
439:, and
384:R10000
352:R10000
331:Octane
327:Indigo
305:server
203:Memory
85:
78:
71:
64:
56:
921:Virtu
916:Prism
911:Altix
890:IA-32
880:Tezro
865:Onyx2
466:Quake
380:R8000
372:R4000
344:R8000
320:GIO64
90:JSTOR
76:books
1050:4Dwm
1045:Xsgi
1015:IRIX
963:VPro
948:Elan
875:Fuel
850:Onyx
825:Indy
802:MIPS
752:Cray
574:2021
490:PROM
474:13W3
437:Elan
399:SIMM
356:RISC
325:The
316:EISA
309:MIPS
283:Unix
281:are
270:The
238:.com
185:IRIX
171:1997
167:1997
156:1992
149:1992
62:news
1080:XIO
1075:GIO
1055:XFS
1025:MEX
422:DMA
390:RAM
368:CPU
362:CPU
290:SGI
236:sgi
192:CPU
45:by
1107::
896:,
892:,
835:O2
557:.
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653:e
646:t
639:v
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112:)
106:(
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97:(
87:·
80:·
73:·
66:·
39:.
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