Intel IB850 user manual Advanced Chipset Features

Page 47

BIOS SETUP

Advanced Chipset Features

This Setup menu controls the configuration of the chipset.

Phoenix - AwardBIOS CMOS Setup Utility

Advanced Chipset Features

 

 

 

 

 

 

DRAM Timing Selectable

By SPD

ITEM HELP

 

 

CAS Latency Time

2

Menu Level >

 

 

Active to Precharge Delay

8

 

 

 

DRAM RAS# to CAS# Delay

4

 

 

 

DRAM RAS# Precharge

4

 

 

 

Memory Frequency For

Auto

 

 

 

System BIOS Cacheable

Enabled

 

 

 

Video BIOS Cacheable

Enabled

 

 

 

Memory Hole at 15M -16M

Disabled

 

 

 

Delay Prior to Thermal

16 Min

 

 

 

AGP Aperture Size (MB)

128

 

 

 

Init Display First

PCI Slot

 

 

 

DRAM Date Integrity Mode

Non-ECC

 

 

 

 

 

 

 

DRAM Timing Selectable

This option refers to the method by which the DRAM timing is selected. The default is By SPD.

CAS Latency Time

You can select CAS latency time in HCLKs of 2/2 or 3/3. The system board designer should set the values in this field, depending on the DRAM installed. Do not change the values in this field unless you change specifications of the installed DRAM or the installed CPU. The choices are 2 and 3.

Active to Precharge Delay

The default setting for the Active to Precharge Delay is 6.

DRAM RAS# to CAS# Delay

This option allows you to insert a delay between the RAS (Row Address Strobe) and CAS (Column Address Strobe) signals. This delay occurs when the SDRAM is written to, read from or refreshed. Reducing the delay improves the performance of the SDRAM.

DRAM RAS# Precharge

This option sets the number of cycles required for the RAS to accumulate its charge before the SDRAM refreshes. The default setting for the Active to Precharge Delay is 3.

Memory Frequency For

IB850 User’s Manual

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Contents Version USER’S ManualAcknowledgments Table of Contents This page is intentionally left blank Introduction ChecklistProduct Description VGA SpecificationsInstallations Board Dimensions Installations Installations Installing the CPU Installing the Memory ATX Power InstallationSetting the Jumpers Jumper Locations on IB850 JP6 82551 10/100Mb LAN Enable/Disable JP1 Clear Cmos ContentsJP7 DiskOnChip Address Select JP9 AT/ATX Power Supply SelectJ2 CRT2 / TV-Out Connector Jumper and Connectors on IBA110J1 Tmds Panel Connector JP1 Lvds Panel Power Select J3 Panel Inverter Power ConnectorJ4 VGA Chipset Fan Power Connector J5, J6 Lvds Connectors 2nd channel, 1st channelInstallations SW1 Lvds Resolution Select Connectors on IB850 IDE1, IDE2J10 Eide ConnectorsAGP1 Connector Locations on IB850DRQ0 CN2, CN3 USB Connectors FDD1 Floppy Drive ConnectorCN1 ATX 12V/+12V Power Connector J8, J9 System Fan Power Connector J3 CPU Fan Power ConnectorJ7 External ATX Power Connector Speaker Pins 1 J1 System Function ConnectorSMI/Hardware Switch Pins 6 J4, J5 COM1 and COM2 Serial Ports Connector J2 Parallel Port ConnectorJ13, J14 Serial ATA Sata Connectors J10 Wake On LAN ConnectorJ11 External Audio Connector J12 CD-In Audio ConnectorJ17 IrDA Connector J15 VGA CRT ConnectorJ16, J18 External PS/2 Mouse and Keyboard Connector AGP1 MicroAGP Connector for IBA110 J19 PS/2 Keyboard and Mouse ConnectorJ20 Primary RJ45 Connector J21 Gigabit LAN RJ45 ConnectorSample Code Watchdog Timer ConfigurationInstallations Near Installations Bios Setup Bios Setup Bios IntroductionPhoenix AwardBIOS Cmos Setup Utility Date Standard Cmos SetupDrive a / Drive B TimeIDE Primary HDDs / IDE Secondary HDDs Halt On VideoCPU L1 and L2 Cache Advanced Bios FeaturesHard Disk / CD-ROM Boot Priority Quick Power On Self TestBios Setup Boot Up NumLock Status First/Second/Third Boot DeviceBoot Other Device Boot Up Floppy SeekOS Select for Dram 64MB Apic ModeSecurity Option MPS Version Control for OSAdvanced Chipset Features AGP Aperture Size TV Standard Video ConnectorPanel Scaling Panel NumberIDE Integrated PeripheralsIDE Primary/Secondary Master/Slave Udma IDE HDD Block ModeOnChip Primary/Secondary PCI IDE IDE Primary/Secondary Master/Slave PIOAC97 Audio Uart Mode SelectParallel Port Mode USB Mouse SupportAcpi Suspend Type Power Management SetupPower Supply Type Acpi FunctionVideo Off Method Power ManagementSuspend Mode HDD Power DownCPU THRM-Throttling Power On by RingResume by Alarm Reload Global Timer EventsResources Controlled by PNP/PCI ConfigurationsPNP OS Install Reset Configuration DataTemperature/CPU/Chassis Fan Failure Warning CPU Warning TemperatureTemperatures/Fan Speeds/Voltages Shutdown TemperatureSpread Spectrum Frequency/Voltage ControlAuto Detect PCI Clk Save & Exit Setup Load Fail-Safe DefaultsLoad Setup Defaults Set Supervisor/User PasswordDrivers Installation Intel 875P Chipset Software Intallation Utility Drivers Installation Drivers Installation Realtek AC97 Codec Audio Driver Installation Intel PRO LAN Drivers Installation ATI M7 VGA Driver Installation Drivers Installation ATI M9/M10 VGA Driver Installation Drivers Installation