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Sun Enterprise[tm] 250 Server: Hardware Specifications

Number Up to two processor modules
Architecture 250-, 300- or 400-MHz UltraSPARC[tm]-II with onboard e-cache
Cache memory

1-MB external cache per processor with 250-MHz CPU

2-MB external cache per processor with 300- or 400-MHz CPU


Buffered 144-bit UPA bus, 128 bits data, 16 bits ECC

UPA operates at 100-MHz with 300- or 400-MHz CPUs

Main Memory

16 DIMM slots, four banks of four slots

Accepts 32-, 64-, or 128-MB DIMMs

128 MB to 2 GB total memory capacity

Memory type 144-pin 5V 60-ns memory modules

576 bits wide, 512 bits data, 64 bits ECC

Up to 600 MB/sec throughput

Standard Interfaces
Ethernet One ethernet/fast ethernet (10BASE-T/100BASE-T) twisted-pair standard connector (RJ-45) or one MII for external transceiver connection, autoselect port
Keyboard and mouse One standard keyboard/mouse port (mini DIN-8)
Parallel One Centronics compatible, bidirectional, EPP port (DB25)

Four full-size slots compliant with PCI specification version 2.1:

  • One slot operating at 33- or 66-MHz, 32- or 64-bit data bus width, 3.3 volt
  • Three slots operating at 33 MHz, 32- or 64-bit data bus width, 5 volt
SCSI One 40MB/sec, 68-pin ,Ultra SCSI (SCSI-3), 2 channels (synchronous)
Serial Two RS-232D/RS423 serial ports (DB25)
Internal Mass Storage

Up to six 18-GB 3.5 x 1.6 in., 36-GB 3.5 x 1.0 in., 10000 rpm, hot-swap Ultra SCSI-3 drives
(4.2-GB and 9.1-GB 7200 also configured)

Disk bays: Six hot-swap disk bays
Disk controllers: One 40-MB/sec Ultra SCSI-3 channel


Internal SunCD 32 (standard; last order = Nov. 2000)

Internal 10X DVD-ROM drive (standard)

Floppy 1.44-MB 3.5-in. floppy drive
Tape Optional 5.25 x 1.6 in. fast SCSI tape drive, 8-mm, 4-mm DDS-3, DDS-2, MLR3, SLR5
Power Supplies
Type One or two N+1 redundant, hot-swap, universal input (1 supply standard)
Output 360 W
Power bus Common, load-sharing
AC input 100 - 240 VAC, 47 - 63 Hz, 2.8 A(max)
Input power 343 W
Heat output 1170 BTU/hr
Temperature1 Operating: 5 C to 35 C (41 F to 95 F)
Nonoperating: -20 C to 60 C (-4 F to 140 F)
Humidity Operating: 20% to 80% relative humidity, noncondensing
Nonoperating: 5% to 93% relative humidity, noncondensing
Altitude Operating: 3000 m (10,000 ft.)
Nonoperating: 12,000 m (40,000 ft.)
Acoustic noise Operating: 6.5 bels
Idling: 6.3 bels
Vibration Operating: 0.2G peak, 5 - 500 Hz (swept sine)
0.0002 G2/Hz, 5 - 500 Hz (random)
vertical axis only (castered configuration), vertical and horizontal axes (foot glide configuration)
Nonoperating: 1G peak, 5 - 500 Hz (swept sine)
0.002 G2/Hz, 5 - 500 Hz (random), 3 perpendicular axes
Shock Operating: 4G peak, 11 milliseconds half-sine pulse
Nonoperating: 15G peak, 11 milliseconds half-sine pulse
Number of cords 1
Plug type - U.S. NEMA 5-15P
Plug type - International IEC 320, 10 A, 250 VAC
1 The front and rear doors of the cabinet must be 63% open for adequate air flow.
Meets or exceeds the following requirements:
Safety EN60950/IEC950 TUV, UL 1950, CB Scheme IEC 950, C22.2 No. 950 from UL
RFI/EMI EN55022/CISPR22 Class B, VCCI Class II FCC Part 15 Sub Part B
Immunity EN50082/IEC-1000-2/IEC-1000-3, IEC-1000-4, IEC-1000-5
X-ray DHHS 21 Subchapter J, PTB German X-ray Decree
Dimensions and Weights
Height 46.0 cm (18.1 in.) or 51.7 cm (20.4 in.) with caster option
90.8 cm (35.75 in.) shipping
Width 26.2 cm (10.3 in.)
45.72 cm (18.0 in.) shipping
Depth 68.8 cm (27.1 in.), power supply handles add 3.1 cm (1.2 in.)
86.36 cm (34.0 in.) shipping
Weight 53 kg (118 lb.)
58.97 kg (130 lb.) shipping
Power cord 2.5 m (8.2 ft.)
Clearance and Service Access
Front1 91.4 cm (36 in.)
Rear1 91.4 cm (36 in.)
Right1 91.4 cm (36 in.)
Left1 91.4 cm (36 in.)
Top1 91.4 cm (36 in.)
1These specifications refer to a sytem that is fully extended from the rack for service. When in normal operation, there are no side clearance requirements for the server as the air flow is from the front to rear. However, make sure that any front or back cabinet doors are 63% open to allow adequate airflow. This can be accomplished by removing the doors, or ensuring that the doors have a perforated pattern that provides a 63% open area. See 816-1613 for more details.
Rack Mounting
Up to four Sun Enterprise 250 servers may be mounted in a 56-in. expansion cabinet. Up to five Enterprise 250 servers may be mounted in a 72-in. expansion cabinet.

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