Apple Power Macintosh G5 1.8 (PCI) Specs
Identifiers: Late 2004 - M9555LL/A - PowerMac9,1 - A1093 - 2020
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The Apple Power Macintosh G5/1.8 (PCI), uses a lower cost motherboard based on the one used in the iMac G5 with a 600 MHz (3:1) system bus. This model features a 1.8 GHz PowerPC 970fx (G5) processor with an optimized AltiVec "Velocity Engine" vector processing unit and 512k level 2 on-chip cache. It shipped configured with 256 MB of 400 MHz PC3200 DDR SDRAM, an 80.0 GB (7200 RPM) Serial ATA hard drive, an 8X DVD-R/CD-RW "SuperDrive", and a NVIDIA GeForce FX 5200 Ultra (AGP 8X Pro) video card with 64 MB of DDR SDRAM.
Connectivity includes USB 2.0, FireWire "400" and "800", ADC, DVI (single link), optical digital audio in/out, and support for AirPort Extreme (802.11g) and Bluetooth 1.1. This model does not support PCI-X.
Like the earlier models, the Power Macintosh G5/1.8 (PCI) uses the same "anodized aluminum alloy" case divided into four different thermal zones with nine computer-controlled fans for optimum cooling, and features a removable side panel for easy access to internal components. Custom configurations also were available.
Also see: What are the primary differences between the "June 2004" Power Mac G5 models?
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||October 19, 2004
||June 13, 2005
||The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.
Also see: All Macs introduced in 2004.
||1005 & 1205
||Geekbench 2 benchmarks are in 32-bit and 64-bit modes, respectively. These numbers reflect an average of user provided 32-bit and 64-bit results as submitted to the Geekbench website. Higher numbers are better.
You also might be interested in reviewing all 32-bit and 64-bit Geekbench 2 user submissions for Macs with the PowerMac9,1 Model Identifier, which may include multiple models.
To dynamically compare Geekbench 2 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
||PowerPC 970fx (G5)
||The PowerPC 970fx "G5" has 64-bit data paths and registers with native support for 32-bit application code. Apple also reports that it includes a "parallel data structure supporting up to 215 simultaneous in-flight instructions, [and] simultaneous issue of up to 10 out-of-order operations." It likewise has a "dual-pipeline Velocity Engine for 128-bit single-instruction, multiple-data (SIMD) processing, two independent double-precision floating-point units, [and] advanced three-stage branch-prediction logic."
Also see: How fast are dual processor Power Mac G5 models compared to earlier ones?
||The Power Macintosh G5 models have the processor mounted on a custom 300-pin daughtercard, but it is not feasible to upgrade the processor.
Also see: Is the CPU on the Power Mac G5 upgradable? How is it mounted?
|System Bus Speed:
||600 MHz (3:1)
||Cache Bus Speed:
||1.8 GHz (Built-in)
||Boot ROM and around 1 MB, other instructions are loaded into RAM (NewWorld).
||32k level 1 data cache, 64k level 1 instructional cache. The 512k on-chip level 2 cache runs at processor speed.
||Min. RAM Speed:
||Supports 400 MHz PC3200 DDR SDRAM.
Also see: How do you upgrade the RAM in the Power Mac G5 models?
||Apple notes that the memory system features "128-bit data paths for up to 6.4-GBps memory throughput".
Also see: How much RAM of what type does the Power Mac G5 support? Which models have four RAM slots and which models have eight RAM slots?
||GeForce FX 5200 Ultra
||The NVIDIA GeForce FX 5200 Ultra with 64 MB of DDR SDRAM occupies an 8X AGP Pro slot.
Also see: What graphics cards are provided by the Power Mac G5? Which have ADC ports and which have DVI ports?
||Other graphics cards could be pre-installed at the time of purchase or installed later.
||Apple advertised that this system can support "digital resolutions up to 1920 by 1200 pixels" and "analog resolutions up to 1600 by 1200 pixels" with the pre-installed NVIDIA GeForce FX 5200 Ultra. It has ADC and DVI connectors, and a DVI-to-VGA adapter was included.
|2nd Display Support:
||2nd Max. Resolution:
||Supporting a second ADC-equipped Apple display at the time of its release required a DVI-to-ADC adapter. Using the system with two DVI displays likewise requires an adapter or a different video card.
|Standard Hard Drive:
||80 GB (7200 RPM)
||Int. HD Interface:
||Serial ATA (1.5 Gb/s)
||Officially holds two hard drives -- drives larger than 128 GB are supported. One installed by default. Not compatible with Ultra ATA drives without an adapter.
Also see: How many hard drives of what type are supported in the Power Mac G5? How do you replace the drive or add another one? Are there third-party products to use more drives than are "officially" supported?
In the US (and many other countries), site sponsor Other World Computing sells storage upgrades for this Power Mac G5.
||Apple reports that this 8X DVD-R/CD-RW SuperDrive "writes DVD-R discs at up to 8x speed, reads DVDs at up to 10x speed, writes CD-R discs at up to 24x speed, writes CD-RW discs at up to 10x speed, [and] reads CDs at up to 32x speed." It uses an Ultra ATA/100 bus.
Also see: What are the capabilities of the "SuperDrive" provided by the Power Mac G5? How do you upgrade or replace the optical drive?
||Internal modem and Gigabit Ethernet standard.
||Expansion slots for AirPort Extreme (802.11g) card and Bluetooth 1.1 module. Both optional at the time of purchase.
|| Firewire Ports:
||2 (400), 1 (800)
||The Power Mac G5 has three USB 2.0 ports on the system (one on the front panel and two on the back), two Firewire "400" ports (one on the front and one on the back), and one Firewire "800" port on the back. Apple also advertised "two USB 1.1 ports on included keyboard".
||3 PCI, AP/BL
||2 3.5", 1 5.25"
||This model has "three open full-length 33 MHz, 64-bit PCI slots", an 8X AGP Pro slot that "supports up to 2-GBps data throughput" and is occupied by the graphics card, as well as expansion slots for AirPort Extreme (802.11g) and Bluetooth 1.1.|
In the default configuration, one internal 3.5" bay is occupied by a hard drive and one is free, and the single external 5.25" bay is occupied by a "SuperDrive" optical drive.
Also see: Which Power Mac G5 models have PCI, PCI-X, and PCI Express slots? How many PCI slots of what speed does each Power Mac G5 have? How do you install a PCI card?
||Apple Pro Keyboard
||Apple Pro Mouse
||Also included a USB keyboard extension cable.
||Power Mac G5
|Apple Order No:
||The Apple order number should be unique to this system. Also see: What are the primary differences between the "June 2004" Power Mac G5 models?
|Apple Model No:
||A1093 (EMC 2020)
||Please note that these identifiers refer to more than one model.
Also see: All Macs with the A1093 Model Number, the 2020 EMC Number, and the PowerMac9,1 Model Identifier.
For more about these identifiers and how to locate them on each Mac, please refer to EveryMac.com's Mac Identification section.
||X 10.3.5 (8E90)
||This system cannot run versions of MacOS X more recent than 10.5.8.
|MacOS 9 Support:
||Classic Mode Only*
||*This model is capable of using Mac OS 9 applications within the Mac OS X "Classic" environment provided with Mac OS X 10.4.11 "Tiger" and lower ("Classic" is not supported starting with Mac OS X 10.5 "Leopard"). It cannot boot into Mac OS 9.
Site sponsor OHS specializes in heavily upgraded Macs capable of running both Mac OS X and Mac OS 9 applications.
||20.1 x 8.1 x 18.7
||36.0 lbs. (16.4 kg)
||In inches - height by width by depth, (51.1 cm, 20.6 cm, 47.5 cm).
|Original Price (US):
||Est. Current Retail:
||Please note that on average the estimated current retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).
Photo Credit: Apple Computer.
Ten of the most popular Q&As about the Power Macintosh G5 models follow.
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