Sun Microsystems, Inc.   Sun System Handbook - ISO 3.4 June 2011 Internal/Partner Edition
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Sun Ultra[tm] 20 Workstation, RoHS:Y: Hardware Specifications

Processor
Number One
Architecture AMD-64 100 Series 1.8GHz (model 144), 2.2GHz (model 148), 2.6GHz (model 152), 2.8GHz (model 154), 2.4GHz Dual Core (model 180)
Cache memory 1MB Level 2
Main Memory
Capacities Four DIMM slots
ECC - 512MB, 1GB, 2GB
Non-ECC 256MB
Unbuffered DIMMs only
8 GB Maximum, installed in identically matched pairs
Standard Interfaces
Audio 5 AC '97 ports. One line-in, Two line-out, Two microphone-in
Video ATI Rage XL 8MB PCI graphics
Ethernet One Gigabit ethernet port
Expansion Slots One PCI-Express x16 slot (reserved for graphics)
Two PCI-Express x1 slots
Four PCI slots (3.3V/5V, 32-bit, 33MHz), 3 half length, one full length
Fire Wire Two IEEE 1394a ports
USB Six Serial Bus 2.0 ports, two in front, four in back
Internal Storage
Disks Up to 2x 80GB, 250GB or 500GB SATA disk drives
DVD One DVD-ROM or DVD+R/RW
Graphics
Cards
Environment
AC Power 100-120; 220-240 VAC, 47-63 Hz
Input Current 4A @ 100 VAC
Power consumption Power Supply - 400 Watts
Heat output 1365 BTU/hr
Temperature Operating: 5° C to 35° C (41° F to 95° F)
Nonoperating: -40° C to 65° C (-40° F to 158° F)
Humidity Operating: 20% to 93% relative humidity, non-condensing
Nonoperating: 93% relative humidity, non-condensing
Acoustic noise Operating: < 4.7 bels
Idling: < 4.3 bels
Regulations
Meets or exceeds the following requirements:
RoHS Compliance Level RoHS:Y
Safety UL/CSA-60950-1, EN 60950-1, IEC 60950-1 CB
RFI/EMI EN 55022/CISPR22 Class B, FCC CFR47 Part 15 Class B, EN 61000-3-2, EN 61000-3-3
Immunity EN 55024
Regulatory Markings UL/cUL, TUV-GS, CE FCC, ICES-003, C-Tiek, VCCI, GOST-R, BSMI, CCC, S-Mark
Ergonomics EK1-1TB-2000
Dimensions and Weights
Height 43.36 cm (17.07 in)
Width 19.96 cm (7.86 in)
Depth 46.74 cm (18.4 in)
Weight 15.4 kg (34 lbs)

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