PCI-X
E267705
PCI-X is an older high-speed parallel computer expansion bus standard used mainly in servers and workstations before being superseded by PCI Express.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T2447521 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PCI-X Context triple: [PCI Express, replaces, PCI-X]
-
A.
PCI Express
PCI Express is a high-speed serial computer expansion bus standard used to connect components like graphics cards, SSDs, and network cards to a motherboard.
-
B.
VESA Local Bus
VESA Local Bus was a high-speed expansion bus standard for IBM-compatible PCs in the early 1990s, designed primarily to improve graphics and overall system performance by providing a faster connection to the CPU than the older ISA bus.
-
C.
Multibus
Multibus is an early Intel-developed computer bus standard widely used in 1980s workstations and embedded systems for modular expansion and peripheral connectivity.
-
D.
AGP
AGP (Accelerated Graphics Port) is a high-speed point-to-point channel designed specifically for attaching a graphics card to a computer’s motherboard to improve 3D graphics performance.
-
E.
NuBus
NuBus is a 32-bit, processor-independent expansion bus standard widely used in late-1980s and early-1990s workstations and personal computers, including many Apple Macintosh systems.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: PCI-X Target entity description: PCI-X is an older high-speed parallel computer expansion bus standard used mainly in servers and workstations before being superseded by PCI Express.
-
A.
PCI Express
PCI Express is a high-speed serial computer expansion bus standard used to connect components like graphics cards, SSDs, and network cards to a motherboard.
-
B.
VESA Local Bus
VESA Local Bus was a high-speed expansion bus standard for IBM-compatible PCs in the early 1990s, designed primarily to improve graphics and overall system performance by providing a faster connection to the CPU than the older ISA bus.
-
C.
Multibus
Multibus is an early Intel-developed computer bus standard widely used in 1980s workstations and embedded systems for modular expansion and peripheral connectivity.
-
D.
AGP
AGP (Accelerated Graphics Port) is a high-speed point-to-point channel designed specifically for attaching a graphics card to a computer’s motherboard to improve 3D graphics performance.
-
E.
NuBus
NuBus is a 32-bit, processor-independent expansion bus standard widely used in late-1980s and early-1990s workstations and personal computers, including many Apple Macintosh systems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
computer expansion bus standard
ⓘ
high-speed bus interface ⓘ parallel computer bus ⓘ |
| backwardCompatibleWith |
PCI
ⓘ
linked to:
Peripheral Component Interconnect
|
| basedOn |
PCI
ⓘ
linked to:
Peripheral Component Interconnect
|
| busArbitration | shared bus arbitration ⓘ |
| busType | parallel ⓘ |
| coexistsWith | PCI on some motherboards ⓘ |
| compatibleWith | 3.3 V PCI cards ⓘ |
| connectorType | 64-bit PCI-style edge connector ⓘ |
| dataPathWidth | 64-bit ⓘ |
| designedFor |
servers
ⓘ
workstations ⓘ |
| fullName |
Peripheral Component Interconnect eXtended
ⓘ
linked to:
Peripheral Component Interconnect
|
| introducedYear | 1998 ⓘ |
| maintainsSignalIntegrityWith | improvedElectricalSpecificationsOverPCI ⓘ |
| maxClockFrequency |
100 MHz
ⓘ
133 MHz ⓘ 133 MHz ⓘ 266 MHz ⓘ 533 MHz ⓘ 66 MHz ⓘ |
| maxTheoreticalBandwidthPerSlot |
1064 MB/s
ⓘ
2133 MB/s ⓘ |
| optimizedFor | high-throughput I/O devices ⓘ |
| physicalCompatibility | sharesSameSlotFormFactorAs64-bitPCI ⓘ |
| primaryLimitationComparedToPCIe | lower scalability and signal integrity at very high speeds ⓘ |
| replacedInNewDesignsBy | PCI Express ⓘ |
| signalEncoding | parallel TTL-like signaling ⓘ |
| standardizedBy | PCI-SIG ⓘ |
| status | legacy technology ⓘ |
| supersededBy | PCI Express ⓘ |
| supports |
larger transaction sizes than PCI
ⓘ
split transactions ⓘ |
| supportsBusMastering | true ⓘ |
| supportsErrorCorrection | ECC and parity options ⓘ |
| supportsHotPlug | true ⓘ |
| supportsMultipleSlotsPerBus | true ⓘ |
| targetMarket | enterprise systems ⓘ |
| topology | shared parallel bus ⓘ |
| typicalUseEra | early 2000s to mid-2000s ⓘ |
| usedFor |
RAID controllers
ⓘ
SCSI controllers ⓘ fibre channel adapters ⓘ network interface cards ⓘ |
| version |
PCI-X 1.0
ⓘ
linked to:
PCI-X
PCI-X 2.0 ⓘ |
| voltage | 3.3 V signaling ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: PCI-X Description of subject: PCI-X is an older high-speed parallel computer expansion bus standard used mainly in servers and workstations before being superseded by PCI Express.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: PCI-X
linked to: PCI-X