Appendix A. Technical Specifications

Appendix A. Technical Specifications
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This appendix lists the technical specifications of the SGI Onyx 3000 series graphics system in these sections:

System-Level Specifications

Table A-1 summarizes system configuration ranges.

Table A-1. System Configuration Ranges

Category	Minimum	Maximum
Processors	4	128
Peak performance	~4 Gigaflops (one 4P node brick)	~128 Gflops (32 4P node bricks)
C–brick memory capacity	512 MB	8 GB
System main memory capacity	512 MB (one node brick)	256 GB (32 node bricks)
I/O channels	1	32
Aggregated peak I/O bandwidth	0.768 GB/sec (one I–brick)	~ 76 GB/sec (one I–brick and 31 P–bricks)

Table A-2 lists the physical specifications of the short rack.

Table A-2. Short Rack Physical Specifications

Characteristic	Specification
Height	36.06 in. (915 mm)
Width	25.38 in. (644 mm)
Depth	40.63 in. (1031 mm)
Weight (maximum)	475 lb (216 kg)
Shipping weight (maximum)	550 lb (250 kg)

Table A-3 lists the physical specifications of the tall rack.

Table A-3. Tall Rack Physical Specifications

Characteristic	Specification
Height	74.25 in. (1885 mm)
Width	30.00 in. (761 mm)
Depth	51.50 in. (1307 mm)
Weight (maximum)	Compute rack = 1075 lb (489 kg); I/O rack = 1225 lb (557 kg); Graphics rack with two G–bricks = 850 lb (386 kg)
Shipping weight (maximum)	Compute rack = 1438 lb (654 kg); I/O rack = 1588 lb (722 kg); Graphics rack with two G–bricks = 1213 lb (550 kg)

Brick-Level Specifications

Table A-4 lists the physical specifications of all bricks.

Table A-4. Brick and Power Supply Physical Specifications

Brick or Bay	Height (in Units)	Height (in Inches)	Maximum Weight
C–brick	3U	5.25 in. (133 mm)	65 lb (30 kg)
I–brick	4U	7.00 in. (178 mm)	69 lb (31 kg)
P–brick	4U	7.00 in. (178 mm)	70 lb (32 kg)
X–brick	4U	7.00 in. (178 mm)	69 lb (31 kg)
D–brick	4U	7.00 in. (178 mm)	94 lb (43 kg)
R–brick	2U	3.50 in. (89 mm)	18 lb (8 kg)
G–brick	18U	31.5 in. (800 mm)	215 lb (98 kg)
N–brick	2U	3.50 in. (89 mm)	18 lb (8 kg)
V–brick	4U	7.00 in. (178 mm)	69 lb (31 kg)
L2 controller	1U	1.75 in. (44 mm)	3.9 lb (2 kg)
Power bay	3U	Height 5.10 in. x Width 17.50 in. x Depth 24.50 in. (130 mm x 449 mm x 622 mm)	72 lb (33 kg) fully loaded with 6 power supplies
Power supply	3U	Height 5.00 in. x Width 2.80 in x Depth 13.00 in. (127 mm x 71 mm x 330 mm)	8 lb (4 kg)

Power Specifications

Table A-5 lists the power requirements of individual bricks.

Table A-5. Brick and Power Supply Power Consumption

Brick	Maximum Power Consumption	Input Power
C–brick with 2 processors	250 W	48 VDC
C–brick with 4 processors	308 W	48 VDC
I–brick	190 W	48 VDC
P–brick	225 W	48 VDC
X–brick	225 W	48 VDC
D-brick	550 W (for each of two power supplies)	180–254 VAC (50/60 Hz)
R–brick	60 W	48 VDC
G–brick	2000 W	180–254 VAC (50/60 Hz)
V–brick	225 W	48 VDC
N–brick	115 W	48 VDC
L2 controller	37 W	48 VDC
Power supply^[a]	950 W (maximum)
^[a]Power supply efficiency needs to be considered if calculating total AC power input.

The following sections provide more details about the I-brick, P-brick, R-brick, and X-brick.

I–brick :

Supports a CD-ROM.
Has five 64-bit PCI slots to support 3.3/Universal VDC PCI cards (three slots support 33–MHz cards and two slots support either 33–MHz or 66–MHz PCI cards).
Supports two 3.5-in. sled-mounted Fibre Channel disk drives.
FC disk controller uses one of the PCI slots.

P–brick :

Supports twelve 3.3/Universal volt PCI cards (all slots support either 33-MHz or 66–MHz PCI cards).

The P–brick power board supplies an average of 17.5 W (5.3 A, 3.3 V) of power to each PCI slot; however, a PCI card may consume as much as 25 W of power. The L1 controller controls how the power board applies power to the PCI cards. Starting with the lowest numbered slot, the power board continues to apply power to the PCI slots until all of the power has been consumed. The L1 controller uses two presense pins in each PCI slot to calculate the total power consumption of the PCI cards. The L1 controller prints a message to the console if there is not enough power for all of the PCI cards.

X–brick :

Four XIO slots.

The power board contains the logic components of the X–brick's L1 controller, five VRMs, one DC-to-DC converter, and three voltage regulators. The VRMs, DC-to-DC converter, and voltage regulators convert the incoming 48 VDC to voltage levels required by the components in the brick.

R–brick :

One USB port (connects to L2 controller.)
Eight NUMAlink I/O connectors (located in rear).
Input power is +48 VDC (~60 W).

Table A-6 lists the power supply electrical data.

Table A-6. Power Bay and Power Supply Specifications

Feature	Value
Power bay supplies	4.4 kW continuous power (if all six supplies are being used)
Maximum output rating per power supply	950 W
Output connection	Eight 48 VDC
Cable (power input)	AC input (200-240 VAC 1P 20 A each cord)

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Chapter 6. Graphics System Controllers		Appendix B. Regulatory Specifications