AGP Capability
Common Options : Auto, 1X Mode, 2X Mode, 4X Mode, 8X Mode
Quick Review of AGP Capability
The AGP Capability BIOS feature is only found in AGP 8X-capable motherboards. AGP 8X is backward-compatible with earlier AGP standards.
This BIOS feature allows you to set the motherboard’s maximum supported AGP transfer protocol.
It is recommended that you leave this BIOS feature at its default setting of Auto. This allows the motherboard to set the appropriate AGP transfer protocol based on the graphics card’s AGP support detected during the booting up process.
However, the other options are useful if your graphics card has problems using the detected AGP transfer protocol. You can then manually select a slower AGP transfer protocol to solve the problem.
Details of AGP Capability
The AGP Capability BIOS feature is only found in AGP 8X-capable motherboards. AGP 8X is backward-compatible with earlier AGP standards.
This BIOS feature allows you to set the motherboard’s maximum supported AGP transfer protocol.
When this BIOS feature is set to Auto, the motherboard will automatically select the appropriate AGP transfer protocol after detecting the capabilities of the AGP graphics card.
When this BIOS feature is set to 1X Mode, the motherboard will force the AGP bus to use the AGP 1X transfer protocol. AGP 1X allows a maximum transfer rate of 266MB/s.
When this BIOS feature is set to 2X Mode, the motherboard will force the AGP bus to use the AGP 2X transfer protocol. AGP 2X allows a maximum transfer rate of 533MB/s.
When this BIOS feature is set to 4X Mode, the motherboard will force the AGP bus to use the AGP 4X transfer protocol. AGP 4X allows a maximum transfer rate of 1GB/s.
When this BIOS feature is set to 8X Mode, the motherboard will force the AGP bus to use the AGP 8X transfer protocol. AGP 8X allows a maximum transfer rate of 2.1GB/s.
It is recommended that you leave this BIOS feature at its default setting of Auto. This allows the motherboard to set the appropriate AGP transfer protocol based on the graphics card’s AGP support detected during the booting up process.
However, the other options are useful if your graphics card has problems using the detected AGP transfer protocol. You can then manually select a slower AGP transfer protocol to solve the problem.
Please note that manually setting the AGP Capabilities BIOS feature to 8X Mode will not enable AGP 8X transfers if your graphics card supports only AGP 4X. The AGP bus will make use of the fastest AGP transfer protocol supported by both motherboard and graphics card.
Recommended Reading
[adrotate group=”2″]- PCI Clock Synchronization Mode – The Tech ARP BIOS Guide
- CPU Drive Strength from The Tech ARP BIOS Guide
- Multi-Sector Transfers from The Tech ARP BIOS Guide
- PCI Chaining from The Tech ARP BIOS Guide
- PCI-E Max Read Request Size – The Tech ARP BIOS Guide
- PPM Mode from The Tech ARP BIOS Guide
- SDRAM PH Limit from the Tech ARP BIOS Guide
- MP Capable Bit Identify from The Tech ARP BIOS Guide
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