SGI System to PCI Type Cross Reference

fraserN64

New member
Aug 20, 2019
22
10
3
sites.google.com
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
ModelBrick or Shoebox33 MHz66 MHz100 MHz133 MHz32 Bit64 BitPCI-X3.3V5V
O211X
OctaneXIO PCI
1 slot
11X
OctaneXIO PCI
3 slot
33X
Fuel224X
TezroTower77X
Tezro (1)Rack123X
TezroRack Expansion44X
Origin 200Module33X
Origin 200Expansion33X
Origin 200GIGA channel44X
Origin 2000 / Onyx 2 (2)XIO PCI 1 slot11X
Origin 2000 / Onyx 2 (2)XIO PCI 3 slot33X
Origin 300 / Onyx 300Compute22X
Origin 300 / Onyx 300PCI1212X
Origin 300 / Onyx 300PCI121266
Origin 350 / Onyx 350P12X
Origin 350 / Onyx 350P12X
Origin 350 / Onyx 350 / Onyx 4 (1)Compute Base123X
Origin 350 / Onyx 350 / Onyx 4Compute Expansion44X
Origin 350 / Onyx 350PCI-X44X
Origin 350 / Onyx 350MPX44X
Origin 3000 / Onyx 3000I325X
Origin 3000 / Onyx 3000IX11/1211/12X
Origin 3000 / Onyx 3000P1212x
Origin 3000 / Onyx 3000PX1212X
(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
Bus Speed (MHz4 or 8 bytes / transaction (32/64 bit)Data Rate (Megabytes/Second)
334 (32 bit)133 MB/s
338 (64 bit)266 MB/s
664 (32 bit)266 MB/s
668 (64 bit)532 MB/s
1004 (32 bit)400 MB/s
1008 (64 bit)800 MB/s
1334 (32 bit)532 MB/s
1338 (64 bit)1064 MB/s
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.
 
Last edited:
  • Like
Reactions: Elf

About us

  • Silicon Graphics User Group (SGUG) is a community for users, developers, and admirers of Silicon Graphics (SGI) products. We aim to be a friendly hobbyist community for discussing all aspects of SGIs, including use, software development, the IRIX Operating System, and troubleshooting, as well as facilitating hardware exchange.

User Menu