[Home]Ultra 1

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The Ultra 1 (A11/A12) was the first major UltraSPARC (sun4u) based computer released by Sun.

There are five variants of the Ultra 1: 140/170 and 140E/170E/200E. The E stands for "Enterprise". The differences between the "standard" and "Enterprise" versions of the Ultra 1 are:

Standard Enterprise
3 SBUS slots 2 SBUS slots
no UPA slot 1 UPA slot (for "horizontal" Creator framebuffer)
narrow SCSI wide SCSI
10baseT ethernet 100baseTX ethernet

History Lesson: On systems containing 200MHz or lower UltraSPARC-I processors, it is possible for a user to run a 64-bit program designed to exploit a problem that could cause the processor to stall. Since 64-bit programs cannot run on the 32-bit kernel, the 32-bit kernel is chosen as the default boot file on these systems in Solaris. The code sequence that exploits the problem is very unusual and is not likely to be generated by a compiler. Assembler code had to be specifically written to demonstrate the problem. It is highly unlikely that a legitimate handwritten assembler routine would use this code sequence. (also, this "exploit" never appeared in the wild)

Linux has had this issue worked around in the kernel for some time now, so there is no reason to run a 32bit Linux kernel on an Ultra 1 (and I'm pretty sure it won't work at all anyways).

Tested Configurations

Aurora Version Configuration Remarks Reporter
1.0, 1.92 142MHz UltraSPARC-I, Sun TGX video, 256MB RAM Never really used the video (headless over serial). Worked fine for years. Jima
1.0, 1.92 142MHz UltraSPARC-I, Sun TGX video, 320MB RAM Never really used the video (headless over serial). Worked fine for years. Jima
1.0, 1.92 167MHz UltraSPARC-I, Sun TGX video, 128MB RAM Never really used the video (headless over serial). Worked fine for years. Jima

Detailed Specifications

(NOTE: These are the officially supported specifications - other hardware combinations may be possible but are not supported by Sun - see also Sun's System Handbook: [Ultra 1 Workstation Model 140/170 (A11)] and [Ultra 1 Workstation Model 140E/170E/200E (A12)])

CPU Architecture 143, 167, or 200-MHz UltraSPARC-I
Main Memory Eight DSIMM slots
Install DSIMMs in pairs (16 MB, 32 MB, 64 MB, and 128 MB DIMMs)
1 GB maximum
Memory Type 60ns 200-pin DSIMMs, ECC
Standard Interfaces
Audio Four audio ports: headphone(out), line-in, line-out and microphone(in) using EIA standard 0.125-inch (3.5-mm) jacks
Ethernet One ethernet or fast ethernet (10BASE-T or 100BASE-T) twisted-pair standard connector (RJ-45), self-sensing
Keyboard/Mouse? One standard keyboard/mouse port (mini DIN-8)
Parallel One IEEE 1284 (bidirectional) parallel port (DB25)
SBUS Three SBUS slots, 25 MHz, Two SBUS slots on E models
SCSI Fast SCSI-2, Internal/External (50 pin), Fast-Wide SCSI-2 on E models Internal/External (68-pin)
Serial Two synchronous/asynchronous serial ports (DB25), RS-423/RS-232
Disks Shipped with 535 MB, 1.05 GB, 2.1 GB, or 4.2 GB SCSI drives
Floppy One 3.5-in. 1.44-MB floppy
CDROM One 4X, 12X, or 32X-speed CD-ROM
AC input 100 - 240 VAC, 47 - 63 Hz, 3.1 - 1.5 A, 260 VA
Input Power 260 Watts
Temperature Operating: 5C to 40C (41F to 104F)
Nonoperating: -40C to 60C (-40F to 140F)
Humidity Operating: 20% to 80% relative humidity, noncondensing (at 40C)
Nonoperating: 95% relative humidity, noncondensing (at 40C)
Altitude Operating: 3000 m (10,000 ft)
Nonoperating: 12,000 m (40,000 ft)
Max Dwells at Extremes 16 Hours
Vibration Operating: 5-500 Hz, 0.1 g p-p
Nonoperating: 5-500 Hz, 1 g p-p
Shock Operating: 5 g pk, 10 msec 1/2 sine wave
Nonoperating: 30 g pk, 11 msec 1/2 sine wave
Height 10.15 cm (4.00 in.)
Width 41.75 cm (16.44 in.)
Depth 44.30 cm (16.9 in.)
Weight 9.55-12.5 kg (21.0-27.5 lb.)

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Last edited December 11, 2004 9:42 am by Emgaron (diff)