I'm working on a much bigger project and realized this little piece could help some folks out when considering PCI cards. (References at the bottom)
NOTE: Universal PCI Cards should fit in all systems that support PCI, these have 2 keys [gaps] in the card edge connector.
PCI and it's sub-specifications and implementation by SGI can be confusing.
64-bit PCI is NOT PCI-X
64-bit PCI is an addition to the 2.1 PCI specification. PCI-X is a new specification that is backwards compatible with PCI and 64-bit PCI.
The key feature that PCI-X adds is 100 MHz and 133 MHz transfer rates, compared to the 64-bit PCI standard at 66 MHz
PCI-X is only 3.3V while 64-bit PCI can be 3.3 or 5V.
PCI Type and Version Chart
(1) Origin/Onyx 350 Compute Base and Tezro Rack have 3 slots available, the IO9 card (bus 1, slot 1) requires that the bus 1 slot 2 card be 66 MHz
(2) Origin 2000 / Onyx 2 Use the same Bridge ASIC - IO6
Maximum Transfer Rates
PCI Version Highlights
1.0: 5V, 32 and 64-bit @ 33 MHz
2.0: Added 3.3V
2.1: Added 66 MHz
2.3: Removed 5V Only (allows for Universal)
References
https://en.wikipedia.org/wiki/Conventional_PCI
https://en.wikipedia.org/wiki/PCI-X
Octane: OCTANE Technical Report N/A 1997
Fuel: Silicon Graphics® Fuel™ Visual Workstation Hardware User's Guide 007-4480-001
Tezro: Silicon Graphics® Tezro™ Visual Workstation Hardware User’s Guide: Rackmount Configuration 007-4643-003
Tezro: Silicon Graphics® Tezro™ Visual Workstation Hardware User’s Guide: Tower Configuration 007-4564-001
Origin 200: Origin™ 200 and Origin 200 GIGAchannel™ Owner’s Guide 007-3708-002
Origin 300: SGI® Origin® 300 User’s Guide 007-4365-002
Origin 300: PCI Expansion Module User’s Guide (5.0-V Support and/or 3.3-V Support) 007-4499-002
Origin 350: SGI® Origin® 350 Server System User’s Guide 007-4566-001
Origin 3000: SGI™ Origin 3000 Series Owner’s Guide 007-4240-002
Origin 3000: SGI™ Origin 3000 Series Technical Configuration Owner's Guide 007-4311-002
Origin 3900: SGI® Origin® 3900 Server User’s Guide 007-4653-001
Please let me know, of anything that isn't right and I'll update it here. Sorry but I will need official references, I want this to be an authoritative source.
NOTE: Universal PCI Cards should fit in all systems that support PCI, these have 2 keys [gaps] in the card edge connector.
PCI and it's sub-specifications and implementation by SGI can be confusing.
64-bit PCI is NOT PCI-X
64-bit PCI is an addition to the 2.1 PCI specification. PCI-X is a new specification that is backwards compatible with PCI and 64-bit PCI.
The key feature that PCI-X adds is 100 MHz and 133 MHz transfer rates, compared to the 64-bit PCI standard at 66 MHz
PCI-X is only 3.3V while 64-bit PCI can be 3.3 or 5V.
PCI Type and Version Chart
| Model | Brick or Shoebox | 33 MHz | 66 MHz | 100 MHz | 133 MHz | 32 Bit | 64 Bit | PCI-X | 3.3V | 5V |
| O2 | 1 | 1 | X | |||||||
| Octane | XIO PCI 1 slot | 1 | 1 | X | ||||||
| Octane | XIO PCI 3 slot | 3 | 3 | X | ||||||
| Fuel | 2 | 2 | 4 | X | ||||||
| Tezro | Tower | 7 | 7 | X | ||||||
| Tezro (1) | Rack | 1 | 2 | 3 | X | |||||
| Tezro | Rack Expansion | 4 | 4 | X | ||||||
| Origin 200 | Module | 3 | 3 | X | ||||||
| Origin 200 | Expansion | 3 | 3 | X | ||||||
| Origin 200 | GIGA channel | 4 | 4 | X | ||||||
| Origin 2000 / Onyx 2 (2) | XIO PCI 1 slot | 1 | 1 | X | ||||||
| Origin 2000 / Onyx 2 (2) | XIO PCI 3 slot | 3 | 3 | X | ||||||
| Origin 300 / Onyx 300 | Compute | 2 | 2 | X | ||||||
| Origin 300 / Onyx 300 | PCI | 12 | 12 | X | ||||||
| Origin 300 / Onyx 300 | PCI | 12 | 12 | 6 | 6 | |||||
| Origin 350 / Onyx 350 | P | 12 | X | |||||||
| Origin 350 / Onyx 350 | P | 12 | X | |||||||
| Origin 350 / Onyx 350 / Onyx 4 (1) | Compute Base | 1 | 2 | 3 | X | |||||
| Origin 350 / Onyx 350 / Onyx 4 | Compute Expansion | 4 | 4 | X | ||||||
| Origin 350 / Onyx 350 | PCI-X | 4 | 4 | X | ||||||
| Origin 350 / Onyx 350 | MPX | 4 | 4 | X | ||||||
| Origin 3000 / Onyx 3000 | I | 3 | 2 | 5 | X | |||||
| Origin 3000 / Onyx 3000 | IX | 11/12 | 11/12 | X | ||||||
| Origin 3000 / Onyx 3000 | P | 12 | 12 | x | ||||||
| Origin 3000 / Onyx 3000 | PX | 12 | 12 | X |
(2) Origin 2000 / Onyx 2 Use the same Bridge ASIC - IO6
Maximum Transfer Rates
| Bus Speed (MHz | 4 or 8 bytes / transaction (32/64 bit) | Data Rate (Megabytes/Second) |
| 33 | 4 (32 bit) | 133 MB/s |
| 33 | 8 (64 bit) | 266 MB/s |
| 66 | 4 (32 bit) | 266 MB/s |
| 66 | 8 (64 bit) | 532 MB/s |
| 100 | 4 (32 bit) | 400 MB/s |
| 100 | 8 (64 bit) | 800 MB/s |
| 133 | 4 (32 bit) | 532 MB/s |
| 133 | 8 (64 bit) | 1064 MB/s |
1.0: 5V, 32 and 64-bit @ 33 MHz
2.0: Added 3.3V
2.1: Added 66 MHz
2.3: Removed 5V Only (allows for Universal)
References
https://en.wikipedia.org/wiki/Conventional_PCI
https://en.wikipedia.org/wiki/PCI-X
Octane: OCTANE Technical Report N/A 1997
Fuel: Silicon Graphics® Fuel™ Visual Workstation Hardware User's Guide 007-4480-001
Tezro: Silicon Graphics® Tezro™ Visual Workstation Hardware User’s Guide: Rackmount Configuration 007-4643-003
Tezro: Silicon Graphics® Tezro™ Visual Workstation Hardware User’s Guide: Tower Configuration 007-4564-001
Origin 200: Origin™ 200 and Origin 200 GIGAchannel™ Owner’s Guide 007-3708-002
Origin 300: SGI® Origin® 300 User’s Guide 007-4365-002
Origin 300: PCI Expansion Module User’s Guide (5.0-V Support and/or 3.3-V Support) 007-4499-002
Origin 350: SGI® Origin® 350 Server System User’s Guide 007-4566-001
Origin 3000: SGI™ Origin 3000 Series Owner’s Guide 007-4240-002
Origin 3000: SGI™ Origin 3000 Series Technical Configuration Owner's Guide 007-4311-002
Origin 3900: SGI® Origin® 3900 Server User’s Guide 007-4653-001
Please let me know, of anything that isn't right and I'll update it here. Sorry but I will need official references, I want this to be an authoritative source.
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