Editing Power Mac G4 (section)

=== Digital Audio/QuickSilver models ===
[[File:Apple PowerMac G4 M8493 QuickSilver front.jpg|thumb|Power Mac G4 (QuickSilver)]]

A new line with a revamped motherboard but retaining the familiar "Graphite" case debuted on January 9, 2001, known officially as the '''Power Mac G4 (Digital Audio)'''. [[Motorola]] had added a seventh pipeline stage in the new [[PowerPC G4]] design to achieve faster clock frequencies. New features included a fourth PCI slot, a 133&nbsp;MHz system bus, an improved 4X AGP slot, and a new "digital audio" Tripath [[Class T amplifier]] sound system. The models were offered in {{nowrap|466&nbsp;MHz}}, {{nowrap|533&nbsp;MHz}}, dual {{nowrap|533&nbsp;MHz}}, {{nowrap|667&nbsp;MHz}} and {{nowrap|733&nbsp;MHz}} configurations, the latter two using a newer PowerPC 7450 processor. The number of RAM slots was reduced to three, accommodating up to 1.5 [[Gigabyte]]s of [[PC133]] [[SDRAM]].

The {{nowrap|733&nbsp;MHz}} model was the first [[Macintosh]] to include a built-in [[DVD-R]] or Apple-branded [[SuperDrive]], the rest of the line became the first Macs to ship with [[CD-RW]] drives.

At [[Macworld Expo]] [[New York City|New York]] on July 18, 2001, a new line debuted featuring a cosmetically redesigned case known as '''QuickSilver''', and various upgrades to the specifications. It was available in {{nowrap|733}}, {{nowrap|867}} and dual {{nowrap|800&nbsp;MHz}} configurations. The {{nowrap|733&nbsp;MHz}} model was notable for not having a level three cache. The SuperDrive was offered on the mid-range {{nowrap|867&nbsp;MHz}} model, and UltraATA/100 hard drives were offered on all models. The internal speaker received an upgrade, using a [[Harman Kardon|Harman/Kardon]] speaker.

The QuickSilver line received criticism in ''MacWorld''{{'}}s review for removing the "eject" button and the manual eject pinhole, as well as the pass-through monitor power plug, and for the base specification of {{nowrap|128&nbsp;MB}} RAM as being insufficient for running [[Mac OS X]].<ref>{{cite web | url = https://www.macworld.com/article/1019332/powermac.html | title = Hands on with the Power Mac G4/867 | publisher = MacWorld | date = 2001-08-25 }}</ref>

The Quicksilver case went through shifts in hardware features and design up until production was due to start, resulting in a mismatch between the color of the plastic on the machine's front doors and the rest of the case. Designer Doug Satzger recalled Steve Jobs was adamant that the issue be fixed before it shipped, despite pushback.{{sfn|Kahney|2013|p=144}} Ive wanted special polished stainless steel screws in the handle of the case, which [[Jon Rubinstein]] vetoed as too expensive and delaying. Ive went around Rubenstein and got Jobs to approve the screws, though it created a widening rift between Ive and Rubinstein as Ive refused to compromise on his design vision.{{sfn|Kahney|2013|p=145}}

Updated QuickSilver machines, officially named '''Power Mac G4 (QuickSilver 2002)''', were introduced on January 28, 2002, with {{nowrap|800&nbsp;MHz}}, {{nowrap|933&nbsp;MHz}} and dual {{nowrap|1&nbsp;GHz}} configurations. This was the first Mac to reach {{nowrap|1&nbsp;GHz}}. Again, the low-end {{nowrap|800&nbsp;MHz}} model did not include any level three cache. The graphics in Updated QuickSilver machines were provided by an Nvidia [[GeForce4]] Ti/MX or [[Radeon R100 series|ATI Radeon 7500]] graphics card. Some of these models have [[Advanced Technology Attachment|ATA]] controllers with 48-bit [[Logical Block Addressing|LBA]] to accommodate hard drives larger than 128&nbsp;GB.