For Parts/Repair - SGI Silicon Graphics 0² Moosehead 02 CMN-B014 o2 Workstation

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For Parts/Repair - SGI Silicon Graphics 0² Moosehead 02 CMN-B014 o2 WorkstationRollover thumbnails to view additional images.Five-Star Service Is Our Goal! Please read at least the description and shipping policies below, and contact us with any questions.Thanks for shopping!Silicon Graphics 0² - No Power Up - No HDD. Moderate wear on exterior with some stickers. Exact specs unknown.Model CMNB014ANT200The O2 was an entry-level Unix workstation introduced in 1996 by Silicon Graphics, Inc. (SGI) to replace their earlier Indy series. Like the Indy, the O2 used a single MIPS microprocessor and was intended to be used mainly for multimedia . Its larger counterpart was the SGI Octane . The O2 was SGI's last attempt at a low-end workstation. SGI timelineOriginally known as the "Moosehead" project, the O2 architecture featured a proprietary high-bandwidth Unified Memory Architecture (UMA) to connect system components. A PCI bus is bridged onto the UMA with one slot available. [ 1 ] It had a designer case and an internal modular construction. Two SCSI drives could be mounted on special sleds (1 in the later R10000/R12000 models due to heat constraints) and an optional video capture / sound cassette mounted on the far left side.CPUThe O2 comes in two distinct CPU flavours; the low-end MIPS 180 to 350 MHz R5000 - or RM7000-based units and the higher-end 150 to 400 MHz R10000 - or R12000 -based units. The 200 MHz R5000 CPUs with 1 MB L2-cache are generally noticeably faster than the 180 MHz R5000s with only 512 KB cache. There is a hobbyist project that has successfully retrofitted a 600 MHz RM7xxx MIPS processor into the O2.MemoryThere are eight DIMM slots on the motherboard and memory on all O2s is expandable to 1 GB using proprietary 239-pin SDRAM DIMMs . The Memory & Rendering Engine (MRE) ASIC contains the memory controller . Memory is accessed via a 133 MHz 144-bit bus, of which 128 bits are for data and the remaining for error-correcting code (ECC). This bus is interfaced by a set of buffers to the 66 MHz 256-bit memory system.I/OI/O functionality is provided by the IO Engine ASIC. The ASIC provides a 33-bit PCI-X bus, an ISA bus , two PS/2 ports for keyboard and mouse, and a 10/100 Base-T Ethernet port. The PCI-X bus has one slot, but the ISA bus was present solely for attaching a Super I/O chip to provide serial and parallel ports.Disks Rear view of an SGI O2The O2 carries an UltraWide SCSI drive subsystem (Adaptec 7880). Older O2's generally have 4x speed Toshiba CD-ROMs, but any Toshiba SCSI CD-ROM can be used (as well as from other manufacturers, the bezel replacement however is designed to fit Toshiba design and also IRIX cannot utilize CD-DA mode other than Toshiba). Later units have Toshiba DVD-ROMs. The R5000/RM7000 units have two available drive sleds for SCA UltraWide SCSI hard-disks. Because the R10000/R12000 CPU module has a much higher cooling-fan assembly, the R10000/R12000 units have room for only one drive-sled.GraphicsThe O2 used the CRM chipset that was specifically developed by SGI for the O2. It was developed to be a low-cost implementation of the OpenGL 1.1 architecture with ARB image extensions in both software and hardware. The chipset consists of the microprocessor, and the ICE, MRE and Display ASICs. All display list and vertex processing, as well as the control of the MRE ASIC is performed by the microprocessor. The ICE ASIC performs the packaging and unpacking of pixels as well as operations on pixel data. The MRE ASIC performs rasterization and texture mapping. Due to the unified memory architecture, the texture and framebuffer memory comes from main memory, resulting in a system that has a variable amount of each memory. The Display Engine generates analog video signals from framebuffer data fetched from the memory for display.Operating systemsSeveral operating systems support the O2.IRIX 6.3 or 6.5.x (native platform). Linux port is working, but some drivers are missing. Both Gentoo and Debian have releases that work on the O2. See the IP32 port page on linux-mips.org. OpenBSD has run on the O2 since OpenBSD 3.7. See the sgi port page. NetBSD has run on the O2 since NetBSD 2.0. See the sgimips port page. PerformanceThe SGI O2 had an Imaging and Compression Engine (ICE) application-specific integrated circuit (ASIC) for processing streaming media and still images. [ 2 ] ICE operates at 66 MHz and contains a R3000 -derived microprocessor serving as the scalar unit to which a 128-bit SIMD unit is attached using the MIPS coprocessor interface. [ 2 ] ICE operates on eight 16-bit or sixteen 8-bit integers, [ 2 ] but still provides a significant amount of computational power which enables the O2 to do video decoding and audio tasks that would require a much faster CPU if done without SIMD instructions. ICE only works with the IRIX operating system, as this is the only system that has drivers capable of taking advantage of this device.The Unified Memory Architecture means that the O2 uses main memory for graphics textures, making texturing polygons and other graphics elements trivial. Instead of transferring textures over a bus to the graphics subsystem, the O2 passes a pointer to the texture in main memory which is then accessed by the graphics hardware. This makes using large textures easy, and even makes using streaming video as a texture possible.Since the CPU performs many of geometry calculations, using a faster CPU will increase the speed of a geometry-limited application. The O2's graphics is known to have slower rasterization speed than the Indigo2 's Maximum IMPACT graphics boards, though the Maximum IMPACT graphics is limited to 4 MB of texture memory, which can result in thrashing, whereas the O2 is limited only by available memory.While CPU frequencies of 180 to 400 MHz seem low today, when the O2 was released in 1996, these speeds were on par with or above the current offerings for the x86 family of computers (cf. Intel's Pentium and AMD's K5 ). Further, the above listed features made it an excellent graphics workstation which was the market it was targeted at. It was however, even with the speed upgrades it consequently received, not able to keep up with the mainstream PC market and cheaper x86 based computers started to outperform it by the end of its lifetime.28255 - Ad 15907 - Location C3Shipping Destinations outside the Lower 48 may require additional fees, especially with larger items. Please ask before buying.Prompt Payment:Checkout must be completed within 24 hours of commitment to purchase. Large dollar orders may require wire transfer before shipment. Zero or Low Feedback buyers please contact us before purchasing.Forms of Payment:We accept PayPal, Visa, AmEx and MasterCard. We will only ship to your PayPal confirmed address or your credit card billing address.International Orders:We are pleased to offer our international customers quick shipping on most items!The only acceptable payment method is PayPal for international orders. Credit Card payments will not be allowed for shipments outside the US. The buyer is responsible for all customs fees and tariffs - these fees are not reflected in the quoted shipping price and will be collected by the carrier. Direct Signature is mandatory for all international delivers - Identification will be required.Return Policy:Your satisfaction is important to us! oZmoso strives to accurately represent every item we list for sale so that buyers can shop with confidence! Therefore, we only accept returns if the item was not as described in the listing.If the item was not as described and you would like to return it, you must initiate the return within 3 days of receiving. Buyer will be responsible for return shipping charges. Items that do not fit or are not to your liking may be returned within 7 days, but the buyer is responsible for both the original and return shipping charges.Unless an item is not as described, a restocking fee will apply on ALL returns. RMA number issued by us will be required before any return is acceptedTax:All GA in-state residents will be charged state and local sales tax during the checkout process, regardless of pick-up or delivery specification.Manage all your eBay listings with Kyozou eBay Listing Software read more

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