Intel SG-80, SG-81 user manual AGP & P2P Bridge Control, RAS to CAS Delay tRCD, AGP Aperture Size

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3-12	Chapter 3

RAS to CAS Delay (tRCD):

This is the amount of time a CAS is performed after a RAS. The lower the better, but some DRAM does not support low figures.

Press <Esc> to return to the Advanced Chipset Features page.

AGP & P2P Bridge Control

Scroll to this item and press <Enter> to view the following screen:

AGP Aperture Size

This setting controls just how much system RAM can be allocated to AGP for video purposes. The aperture is a portion of the PCI memory address range dedicated to graphics memory address space. Host cycles that hit the aperture range are forwarded to the AGP without any translation.

Graphic Window WR Combin (Enabled)

Use this item to enable or disable CPU support for WR Combin feature.

AGP Fast Write Support (Disabled)

This item lets you enable or disable the caching of display data for the video memory of the processor.

SG-80 Series

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Contents SG-80 Series Page Table of Contents Chapter Driver Installation Appendix A. How to Get Technical SupportFeatures & Specifications Model Chipset Features Back Panel I/OMiscellaneous Product ListLayout Diagram SG-80 Layout Diagram SG-81 Jumpers & Connectors Description Jumpers Description Default SettingConnectors Description SG-80 Series Hardware Setup CPU SocketSystem Memory Dimm Module Total MemoryTotal System Memory Connectors, Headers, and Switches ATX Power Connectors ATXPOWER, ATX12VFAN Connectors CPUFAN, SYSFAN, Pwrfan Pin 2-3 shorted default Normal operation Cmos Memory Clearing Header CcmosFront Panel Switches & Indicators Connection Headers PANEL1 Pin DefinitionPin Signal Name Function Additional USB Port Connection Header USB3, USB4Front Panel Audio Connection Header FPIO-AUDIO1 Accelerated Graphics Port Slot AGP1 Internal Audio Source Connectors CD1, AUX1 Floppy Disk Drive Connector FDC IDE Disk Drive Connectors IDE1, IDE2 Serial ATA connectors SATA1, SATA2 External I/O Panel About the Setup Utility Standard ConfigurationExits the current menu Updating the Bios Using Bios Standard Cmos FeaturesDate and Time IDE Devices None IDE HDD Auto-DetectionIDE Channel 1/2 Master/Slave/ IDE DriveAuto Access Mode Auto Floppy 3 Mode Support DisabledDrive A/Drive B 1.44M, 3.5 in./None Video EGA/VGAAdvanced Bios Features CPU FeatureHard Disk Boot Priority CPU L3 Cache Enabled Hyper-Threading Technology EnabledQuick Power On Self Test Enabled First/Second/Third Boot Device Floppy/Hard Disk/CDROMAdvanced Chipset Features ATA 66/100 IDE Cable Msg. EnabledSecurity Option Setup Small LogoEPA ShowDram Clock/Timing Control Dram Timing ControlDram CAS Latency RAS Active Time tRASRAS to CAS Delay tRCD Graphic Window WR Combin EnabledAGP Fast Write Support Disabled AGP & P2P Bridge ControlSystem Bios Cacheable Disabled Video RAM Cacheable DisabledOnChip AGP Control AGP Data Rate AutoIntegrated Peripherals OnChip IDE DeviceIDE DMA Transfer Access Enabled IDE Burst Mode EnabledOnChip Sata Controller Enabled Serial ATA Mode IDEOnChip USB Controller Enabled OnChip AC97 Controller EnabledOnChip LAN Controller Enabled LAN Boot ROM DisabledOnboard FDC Controller Enabled Parallel Port Mode ECPOnboard SuperIO Device Onboard Serial Port 1 3F8/IRQ4Power Management Setup ECP Mode Use DMAOnboard 1394 Device Enabled Init Display First PCI SlotResume by USB from S3 Disabled Power On by PS2 Keyboard Hot KeyPower On by PS2 Mouse Disabled Wakeup By Ring DisabledPnP/PCI Configurations Resources Controlled By AutoESCDPCI/VGA Palette Snoop Disabled IRQ ResourcesCPU Shutdown Temperature Disabled System Component CharacteristicsPC Health Status PIRQ0 Use IRQ No. ~ PIRQ7 Use IRQ No. AutoLoad Fail-Safe Defaults Option Auto Detect DIMM/PCI Clk EnabledSpread Spectrum Enabled Frequency ControlLoad Optimized Defaults Option Set PasswordSave & Exit Setup Option Exit Without SavingSG-80 Series Driver Installation Setup Items DriversManual Utility Browse CDHow to Get Technical Support User’s ManualAppendix a SG-80 SeriesJan van Riebeeckweg 15, 5928LG, Venlo Technical Support Form