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Apple iMac G3 - Early 2001*
400MHz, 500MHz or 600MHz
Model ID: PowerMac4,1 View how to find model ID

Processor / Memory

  • 400MHz, 500MHz or 600MHz PowerPC G3 processor 512 K backside level 2 cache
  • 64MB 168-pin PC100 SDRAM memory
  • Two memory slots support up to 1GB
OWC Memory Upgrades: Add up to 1GB of memory. OWC certified for up to 1GB of memory.

Internal Drives

  • 10GB Ultra ATA 7200RPM hard disk drive
  • This model does not support hard drives larger than 128GB
  • 24X slot loading CD-ROM drive
Hard drive upgrade: Add up to 1.0TB of storage


  • Two FireWire 400 ports
  • Two USB 1.1 ports
  • One Headphone jack
  • One 3.5-mm analog output jack


  • Line voltage: 100 - 260V AC
  • Frequency: 47Hz to 63Hz
  • Maximum continuous power: 150W


  • AirPort card
  • Built-in 10/100BASE-T Ethernet (RJ-45 connector)
  • Built-in 56K V.92 modem (RJ-11 connector)


  • One Headphone jack
  • One 3.5-mm analog output jack
  • Built-in speaker (24-bit 48 kHz sample rate)
  • Built-in microphone

Display / Monitor Capability

15-inch (13.8-inch viewable) 1024 x 768 native resolution
Shadow-mask CRT display with support for millions of colors
16:10 aspect ratio
  • 1024 x 768 (native)
  • 800 x 600
  • 640 x 480
4:3 aspect ratio

Graphics / Video

  • ATI Rage 128 Pro (AGP 2X) video with 8 MB of VRAM
  • VGA output port for video mirroring on external display or projector

Dimensions / Weight

Height: 15" (38.1cm)
Width: 15" (38.1cm)
Depth: 17.1" (43.4cm)
Weight: 34.7lb. (15.7 kg)