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OVERVIEW
IntroducedJuly 2001
Model IdentifierPowerMac4,1
Model NumberM5521
EMC1857
Order NumberM8582LL/A (500MHz Indigo), M8490LL/A (500 MHz Snow), M8492LL/A (600 MHz Graphite), M8546LL/A (600 MHz Snow), M8510LL/A (700 MHz Graphite), M8554LL/A (700 MHz Snow)
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ColorsIndigo, Graphite, and Snow
Weight and Dimensions34.7 lbs., 15.0" H x 15.0" W x 17.1" D
PROCESSOR
ProcessorPowerPC 750cxe v2.4 or 745/755 v3.1 (G3)
Processor Speed500, 600, 700 MHz
Maximum Processor Speed
Architecture
Number of Cores1
Security ChipNo
Cache64 KB L1, 256 KB backside (1:1) L2
System Bus100 MHz
Logic board RepairNiwTech
STORAGE AND MEDIA
Storage20, 40, or 60 GB
Storage UpgradeNiwTech
SSD UpgradeNiwTech
Data RecoveryNiwTech
MediaSlot-loading 24x CD-ROM or 8x4x32 CD-RW
PERIPHERALS
PeripheralsApple Pro Keyboard, Apple Pro Mouse
Peripherals RepairsNiwTech
SOFTWARE
Original OSMac OS 9.1 (Mac OS ROM 7.5.1) and Mac OS X 10.0.4 (4P13)
Maximum OSMac OS X 10.4.11
OS installNiwTech
OS UpgradeNiwTech
OS DowngradeNiwTech
OS SupportNiwTech
AirDrop
Handoff
Power Nap
Unlock with Apple Watch
Hardware TestAHT (iMac/eMac) 1.2.1, 1.2.2
FIRMWARE
FirmwareOpen Firmware
MEMORY
Built-in MemoryNone
Maximum Memory1.0 GB
Memory Slots2 - PC-100 3.3V 168-pin SDRAM
Memory UpgradeNiwTech
Memory Upgrade InstructionsHow to remove or install memory
Interleaving SupportNo
DISPLAY
Built-in Display15-inch shadow-mask CRT (13.8-inch viewable)
Display Glass
Brightness200 cd/m²
Pixel Density
Color Gamut
Resolutions640x480 @ 117Hz, 800x600 @ 95Hz, 1024x768 @ 75Hz
Display ReplacementNiwTech
GRAPHICS
Graphics CardATI Rage 128 Ultra
Graphics Card ReplacementNiwTech
Graphics Memory16 MB
Display Connection1 - VGA
Display ModesVideo mirroring only
External Resolution
CAMERA
CameraNone
CONNECTIONS
Wi-FiOptional AirPort card (802.11b) (adapter required)
BluetoothNone
Ethernet10/100BASE-T (RJ-45)
Modem56k
USB2 - 12 MBit/s
FireWire2 - 400 MBit/s (8W total power)
Thunderbolt
Display1 - VGA
InfraredNone
Audio In1 - 3.5-mm analog input jack, Built-in microphone (16-bit 44.1 kHz sample rate)
Audio Out3 - 3.5-mm analog output jacks, Built-in speakers (16-bit 44.1 kHz sample rate)
Security Slot1 - Kensington cable lock
EXPANSION
Slots
BaysNone
Hard Drive InterfaceUltra ATA (Shared with optical drive)
Optical Drive InterfaceUltra ATA (Shared with hard disk drive)
SENSORS
Liquid SensorNon
POWER
Backup Battery3.6 V 850 mAh lithium (922-4028)
Maximum Continuous Power150 W
Line Voltage90-264V AC
Power Supply ReplacementNiwTech
ENVIRONMENTAL
Acoustical Performance
Power Consumption
ENERGY STARMeets ENERGY STAR requirements
EPEAT
NiwTechwww.niwtech.com