The SGI 1100 server is designed to be mounted in a standard 19-inch rack. For instructions on mounting the SGI 1100 server in a 19-inch rack, see Chapter 2 in the SGI 1100 User's Guide.
Table A-1 shows the physical specifications for the SGI 1100 server system
Table A-1. SGI 1100 Server Physical Specification
Height | 1u (1.75 in., 4.45 cm) |
Width | 19.0 in. (48.25 cm) |
Depth | 21.2 in. (53.85 cm) |
Weight | 24.2 lbs. (11 kg), maximum configuration 32 lbs (14.5 kg), with rack slides |
Temperature | +5 ✗C (41 ✗F) to +35 ✗C (+95 ✗F) (operating) |
Humidity | 20% - 80% RH, non-condensing |
Vibration: Non-operating (packed) |
5 - 27.1 Hz: 0.60 G |
The server power supply is rated for a maximum of 200W DC output. Maximum AC input power consumption is approximately 307W. Consider the following:
Using 110V AC power, a fully loaded system can consume up to 2.80A
Using 220V AC power, a fully loaded system can consume up to 1.40A
The deployment of ultra-dense 1U servers represents a significant power requirement. A simple formula to calculate server power requirements for an installation is:
(Number of servers) x (307W) = maximum power requirements for servers
The server has the following cooling systems:
Fan wall with three internal swappable fans
Fan sink for each of two CPUs
One internal power supply fan
Two rear blowers
A fully configured SGI 1100 server under maximum workload can produce approximately 1047 Btu/hr. Air temperature measurements around the server may vary as much as 25 ˚C (45 ˚F) from front to back. Deployment of multiple ultra-dense servers will produce a significant amount of heat. For example, 36 servers under maximum workload can generate as much as 37,692 Btu/hr.
Figure A-1 shows the jumper and connector locations on the system board.
 | Note: Jumpers have the “JP” prefix. Connectors have the “CN” prefix. |
Table A-2 describes the items shown in Figure A-1.
| Note: Settings in boldface are the default settings. |
Table A-2. System Board Layout
Item | Description |
|---|---|
BT1 | Battery |
BU1 | Buzzer |
CN1, CN6, CN36 | IPMI connectors |
CN3 | ATX power supply connector |
CN4 | Upper: PS/2 mouse connector |
CN5 | Serial port connector |
CN7 | CPU 1 thermal connector |
CN8 | CPU 1 fan connector |
CN10 | Left: Serial 1 port Right: VGA port |
CN13, CN19, CN20, CN23, CN28 | Housing fan and blower connectors |
CN14 | USB 1 and USB 2 connectors |
CN15 | LED/switchboard connector (see Figure A-2 on ) |
CN16 | LAN 1 jack (RJ45) |
CN17 | LAN 2 jack (RJ45) |
CN18 | NMI switch |
CN21 | Primary IDE connector |
CN22/CN31 | BMC DB connectors |
CN24 | CPU 2 fan connector |
CN25 | CPU 2 thermal connector |
CN26 | LAN1/LAN2 status report connector |
CN27 | Slim-type CD-ROM connector |
CN30 | USB connector |
CN33/CN34 | External hard disk drive LED connectors |
CN37 | Wake on LAN connector |
CN39 | Slim-type FDD connector |
CN41 | Event LED (HDD fail) connector |
CN42 | 12C connector |
CN43 | IOCHRDY (for debug) |
CN46 | Speaker connector |
CPU1 | CPU slot 1 |
CPU2 | CPU slot 2 |
DM1 to DM4 | DIMM slots |
JP5 | Event clear connector |
JP7 | BIOS POST screen 1-2: No logo is shown |
JP8 | Password check 1-2: Password is not checked at power-up |
JP10 | Second CPU present 1-2: Terminator board is installed in second CPU socket Note: There is no default for this jumper since the setting depends on the system configuration (single or dual CPU). |
P2 | 64-bit 66-MHz PCI slot |
U10 | ServerWorks LE north bridge |
U20 | Intel 82559 LAN 1 chipset |
U21 | ATI Rage XL video chipset |
U32 | Intel 82559 LAN 2 chipset |
U92 | ServerWorks LE south bridge (OSB4) |
U93 | BIOS chipset |
U99 | SMC 47B277 super I/O chipset |
| Note: There are two CPU sockets in this system. If you install only one CPU (in socket 1), you need to set JP10 to 1-2 and insert a terminator board in CPU socket 2. |
Figure A-2 illustrates the LED/switchboard CN15 connector settings.
Table A-3 lists the major chips on the system board.
Table A-3. Major Chips on System Board
Item | Controller |
|---|---|
System core logic | ServerWorks ServerSet III LE Chipset (CNB30LE/OSB4) |
Super I/O controller | SMC FDC37B787 |
LAN controller | Intel 82559 |
Memory controller | Built-in ServerWorks CNB30LE (Champ North Bridge) |
VGA controller | ATI Rage XL |
E-IDE controller | Built-in ServerWorks OSB4 (Open South Bridge) |
Keyboard controller | Built-in SMC FDC37B787 Super I/O controller |
RTC | Built-in SMC FDC37B787 super I/O controller |
Table A-4 provides details about the processor.
Table A-4. Processor Specifications
Item | Specification |
|---|---|
Type | Dual Intel Pentium III processor in Flip Chip Pin Grid Array (FC-PGA) package |
Socket | Socket 370 |
Speed | 800 or 1000 MHz |
Bus frequency | 133 MHz |
Voltage | Processor voltage is automatically detected by the system with no jumpers |
Table A-5 provides details about the BIOS.
Table A-5. BIOS Specifications
Item | Specification |
|---|---|
BIOS version | A1 S4 or higher |
BIOS ROM type | Bulk mode flash ROM with boot block protection |
BIOS ROM size | 512 KB |
BIOS ROM package | 32-pin PLCC package |
Supported protocol | PCI 2.2, APM 1.2, VESA/DPMS (VBE/PM V1.0), DMI 2.03, E-IDE 1.1, ACPI 1.0, ESCD 1.03, PnP 1.0a, bootable CD-ROM 1.0, USB 1.0, UHCI 1.0, PC97-compliant, ANSI ATA 3.0, ATAPI |
Boot from CD-ROM feature | Yes |
Supports LS-120 drive | No |
Supports BIOS boot block feature | Yes |
BIOS password control | Check/bypass with JP8 setting |
SGI logo display control during POST | Enable/disable with JP7 setting |
| Note: The BIOS can be overwritten or upgraded using the AFLASH utility (AFLASH.EXE), as described in Appendix B, “Updating the BIOS Firmware” on . |
Table A-6 provides details about the hotkeys.
Hotkey | Function | Description |
|---|---|---|
Ctrl-Alt-Esc | Enter BIOS Setup Utility. | Press the hotkey while the system is booting to enter BIOS Setup Utility. |
F8 | Enable Hidden page of BIOS Setup Utility. | If you press the hotkey in the BIOS Setup Utility main menu screen, the Advanced Options menu appears. |
Alt-F4 | Enable hidden parameters of BIOS Setup Utility. | If you press the hotkey in the BIOS Setup Utility menu screen, the Advanced Options Chipset menu appears. |
Table A-7 details the specifications for first-level and second-level cache configuration.
Table A-7. Cache Memory Specifications
Item | Specification |
|---|---|
First-Level Cache Configurations |
|
Cache function control |
|
Second-Level Cache Configurations (applicable only to systems installed with a Pentium III processor) |
|
Tag RAM location | On processor |
L2 cache RAM location | On processor |
L2 cache RAM type | PBSRAM (Pipelined-burst Synchronous RAM) |
L2 cache RAM size | 256 KB |
L2 cache RAM speed | Full speed of the processor core clock frequency (advanced transfer cache) |
L2 cache function control | Enable/disable by BIOS Setup |
L2 cache scheme | Fixed in write-back |
Table A-8 details the VRM specifications.
Function | VRM Specification | Typical Voltage | Power Source | Maximum Output |
|---|---|---|---|---|
CPU VRM | VRM 8.4 | 2.0 V | 5 V | 18.4 A |
Table A-9 details the system memory specifications.
Table A-9. System Memory Specifications
Item | Specification |
|---|---|
On-board embedded memory size | 0 MB |
Memory socket number | 4 sockets (4 banks) |
Supported memory size per socket | 128 MB, 512 MB Future: 1024 MB |
Supported maximum memory size | 4 GB (1024 MB x 4) |
Supported memory type | Registered ECC SDRAM |
Supported memory speed | 133 MHz (PC-133) |
Supported memory voltage | 3.3 V |
Supported memory module package | 168-pin DIMM |
Support parity check feature | Yes |
Support Error Correction Code (ECC) feature | Yes |
Memory module combinations | You can install memory modules in any combination as long as it matches the above specifications. |
Table A-10 details the memory combinations.
Table A-10. Memory Combinations
DIMM1 | DIMM2 | DIMM3 | DIMM4 | Total |
|---|---|---|---|---|
128 MB | 0 MB | 128 MB | 0 MB | 256 MB |
128 MB | 128 MB | 128 MB | 128 MB | 512 MB |
512 MB | 0 MB | 512 MB | 0 MB | 1024 MB |
128 MB | 512 MB | 128 MB | 512 MB | 1280 MB |
512 MB | 512 MB | 512 MB | 512 MB | 2048 MB |
Table A-11 details the LAN interface specifications.
Table A-11. LAN Interface Specifications
Item | Specification |
|---|---|
LAN controller | 2 Intel 82559 LAN controllers |
LAN controller resident bus | PCI bus |
LAN port | 2 RJ-45 on board (CN16/CN17) |
Function control | Enable/disable by BIOS setup |
Table A-12 details the VGA interface specifications.
Table A-12. VGA Interface Specifications
Item | Specification |
|---|---|
VGA controller | ATI Rage XL |
VGA controller resident bus | PCI bus |
VGA memory | 4-MB SDRAM |
Table A-13 details the IDE specifications.
Table A-13. IDE Interface Specifications
Item | Specification |
|---|---|
IDE controller | Built-in RCC OSB4 (Open South Bridge) |
IDE controller resident bus | PCI bus |
Number of IDE channel | 2 (CN 21, CN 27) |
Supported IDE interface | E-IDE (up to PIO mode 4, DMA mode 2 and Ultra DMA-33), ANSIS ATA rev. 3.0, ATAPI |
Supports LS-120 | No |
Supports bootable CD-ROM | Yes |
Function control | Enable/disable by BIOS setup |
Table A-14 details the diskette drive interface specifications.
Table A-14. Diskette Drive Interface Specifications
Item | Specification |
|---|---|
Diskette drive controller | Built-in SMC FDC37B787 super I/O controller |
Diskette drive controller resident bus | ISA bus |
Supported diskette drive formats | 360 KB, 720 KB, 1.2 MB, 1.44 MB, 2.88 MB, 3-mode format and slim type diskette drive |
Function control | Enable/disable by BIOS setup |
Table A-15 details the serial port specifications.
Table A-15. Serial Port Specifications
Item | Specification |
|---|---|
Serial port controller | Built-in SMC FDC37B787 super I/O controller |
Serial port controller resident bus | ISA bus |
Number of serial ports | 2 |
Serial port locations | CN10, CN5 |
Supports 16550 UART | Yes |
Connector type | 9-pin D-type female connector |
Optional serial port I/O addresses (via BIOS setup) | 3F8h |
Optional serial port IRQs (via BIOS setup) | IRQ4 |
Table A-16 provides details about the memory address map.
Table A-16. Memory Address Map
Address | Size | Function |
|---|---|---|
0000000-009FFFF | 640-KB system memory | On-board DRAM |
00A0000-00BFFFF | 128-KB video RAM | Reserved for graphics display buffer Non-cacheable |
00C0000-00C7FFF | 32 KB for VGA BIOS | Reserved for on-board VGA |
00C8000-00CFFFF | 32-KB I/O expansion ROM | Reserved for ROM on I/O adapters |
00D0000-00D3FFF | 16-KB I/O expansion ROM | Reserved for ROM on I/O adapters |
00D4000-00D7FFF | 16-KB I/O expansion ROM | Reserved for ROM on I/O adapters |
00D8000-00DBFFF | 16-KB I/O expansion ROM | Reserved for ROM on I/O adapters |
00DC000-00DFFFF | 16-KB I/O expansion ROM | Reserved for ROM on I/O adapters |
00E0000-00E7FFF | 32 KB for SCSI BIOS | Reserved for SCSI BIOS |
00E8000-00EFFFF | 32 KB | Reserved on-board |
00F0000-00FFFFF | 64-KB BIOS | System ROM BIOS (ROM) System RAM BIOS (DRAM) |
0100000-0F9FFFF | System memory | On-board DRAM |
0FA0000-0FFFFFF | 384-KB I/O card memory | Reserved for memory map I/O card Non-cacheable |
1000000-FFFFFFF | System memory | On-board DRAM |
Table A-17 lists the device function for each hex range.
Hex Range | Device Function |
|---|---|
000-01F | DMA controller-1, 8237 |
020-027 | Interrupt controller-1, 8259 |
030-037 | Interrupt controller-1, 8259 |
040-047 | System timer (8254-1) |
050-057 | System timer (8254-1) |
060-06F | Keyboard controller, 8742 |
070-07F | Real-time clock, NMI mask |
080-09F | DMA page register 74LS612 |
| Speed status register |
0A0-0BF | Interrupt controller-2, 8259 |
0C0-0DF | DMA controller-2, 8237 |
0F0 | CLEAR math co-processor BUSY |
0F1 | RESET math co-processor |
0F8-0FF | Math co-processor |
4A0 | System I/O port |
| Bit 3: On-board VGA enable/disable 1: Disable 0: Enable |
| Bit 0: On-board LAN 1 enable/disable Bit 1: On-board LAN 2 enable/disable 1: Disable 0: Enable |
| Bit 2: On-board SCSI enable/disable 1: Enable 0: Disable |
| Bit [4:7]: Host frequency setting [0, 0, 1, 1]: 1/5, reset only [0, 1, 1, 1]: 2/11, 300 MHz [1, 0, 0, 0]: 1/6, 350 MHz [0, 0, 0, 1]: 1/4, 400 MHz [0, 1, 0, 1]: 2/9, 450 MHz [0, 0, 1, 1]: 1/5, 500 MHz |
4A1 | SMISW, SCISW, SOFTNMI |
| BIOS/password check control |
0CF8 | PCI configuration address reg |
0CFC | PCI configuration data reg |
1F0-1F7 | Fixed hard disk |
278-27F | Parallel port 2 |
2F8-2FF | Serial port 2 |
378-37F | Parallel port 1 |
3B0-3BF | Monochrome display |
3C0-3CF | EGA, VGA, SVGA |
3D0-3DF | CGA, VGA, SVGA |
3F0-3F7 | Floppy disk controller |
3F7-3FF | Serial port 1 |
000-01F | DMA controller-1, 8237 |
020-027 | Interrupt controller-1 8259 |
Table A-18 lists the function for each interrupt channel.
Table A-18. IRQ Assignment Map
Interrupt Channel | Function |
|---|---|
IRQ0 | Timer output 0 |
IRQ1 | Keyboard |
IRQ2 | Cascade |
IRQ3 | Serial port 2 |
IRQ4 | Serial port 1 |
IRQ5 | Reserved |
IRQ6 | Floppy diskette |
IRQ7 | Parallel port |
IRQ8 | Real time clock |
IRQ9 | Reserved |
IRQ10 | Reserved |
IRQ11 | Reserved |
IRQ12 | PS/2 mouse |
IRQ13 | Numeric processor |
IRQ14 | Embedded hard disk |
IRQ15 | Reserved |
Table A-19 lists the PCI devices interrupt routing for each PCI slot.
Table A-19. PCI Interrupt Routing 1
PCI Devices | INTA# | INTB# | INTC# | INTD# |
|---|---|---|---|---|
Slot 1 | PIRQ5 | PIRQ11 | PIRQ13 | PIRQ15 |
LAN 1 | PIRQ1 |
|
|
|
LAN 2 | PIRQ10 |
|
|
|
VGA | PIRQ0 |
|
|
|
Table A-20 lists the PCI devices interrupt routing for each PCI slot.
Table A-20. PCI Interrupt Routing 2
PCI Devices | INTA# | INTB# | INTC# | INTD# |
|---|---|---|---|---|
Slot 1 | INTIN5/APIC2 | INTIN11/APIC2 | INTIN13/APIC2 | INTIN15/APIC2 |
LAN 1 | INTIN1/APIC2 |
|
|
|
LAN 2 | INTIN10/APIC2 |
|
|
|
VGA | INTIN0/APIC2 |
|
|
|
Table A-21 lists the on-board device IDs and IRQs
Table A-21. On-board Device ID & IRQ Map Table
Device | AD | IDSEL |
|---|---|---|
LAN 1 | AD27 | 14h |
PCI slot 1 | SAD23 | 7h |
VGA | AD29 | 0Dh |
LAN 2 | AD28 | 0Ch |