Got a G3, G4, or G5 Power Mac? Join G-List.Hard drives, optical drives, video cards, and RAM can be replaced inexpensively using third-party components. Logicboards are the most expensive component to repair, followed by the power supply. In each generation, except for the final dual-core one, the fastest model is the least reliable, while the second-fastest is the most reliable. G5/2.0 dual (June 2004), C- (17%, logicboard, hard or optical drive).
We also note the two components that failed most often. Reliability ratings are based on statistics compiled by MacInTouch in June 2006, at which time the dual-core Power Mac G5 models had only been on the market for 8 months. Note that the 1.8 GHz model is one of Apple’s entry-level G5s, which means it uses 33 MHz PCI expansion slots instead of 133 MHz PCI-X andhas 4 memory slots instead of 8. The 2.5 GHz model incorporates a liquid cooling system to keep the CPU from overheating. The case includes four thermal zones and nine fans to handle cooling, each independently controlled for speed. The G5 uses an aluminum enclosure that’s vented in the front and back. System memory is so fast (400 MHz RAM on a 900 MHz to 1.25 GHz bus) that Apple doesn’t bother with a level 3 cache.Ī headphone jack, a USB 2.0 port, and a FireWire 400 port are located on the front of the G5 for easy access. The motherboard architecture uses HyperTransport technology. PCI-X slots and an 8 GB RAM ceiling in the faster G5s. As before, the entry level model uses 64-bit PCI slots and only supports up to 4 GB of RAM vs. Done by re-wiring the fan-cable.Less than a year after unveiling the original Power Mac G5, Apple released a new line of G5 models, each with dual processors and an 8x SuperDrive. PSU: Supermicro 600W Server PSU with Adaptor-Cables and Modded fan: Two 60mm Noctua NF-A6x25-PWM fans on the Apple PSU housing instead of the one 40mm pre-installed fan in the Supermirco-PSU. MSI Vega 56 Air Boost (Overclocked: 900Mhz HBM, could probably even go much higher, like 1000, Core Voltage: 1050mV, could maybe even go lower, maybe 1010) Core/Cache Voltage: Auto (It stays unter 1.3 automatically) "Maximum CPU Core temperature": 80 ("Advanced" -> "CPU Configuration" at the bottom.) RAM: 64GB Gskill Aegis 2666 - 15 - 15 - 35, 1,3530V + XILENCE Copper Heatspreader with Heatpipes Building a CustoMac Hackintosh: Buyer's Guide
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