Intel IB935 user manual Advanced Chipset Features, DRAM Timing Selectable, CAS Latency Time

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Advanced Chipset Features

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

Auto

Menu Level >

 

 

DRAM RAS# to CAS# Delay

Auto

 

 

 

DRAM RAS# Precharge

Auto

 

 

 

Precharge dealy (tRAS)

Auto

 

 

 

System Memory Frequency

By SPD

 

 

 

System BIOS Cacheable

Enabled

 

 

 

Memory Hole at 15M-16M

Disabled

 

 

 

PCI Express Root Port Func

Press Enter

 

 

 

** VGA Setting **

 

 

 

 

PEG/On Chip VGA Control

Auto

 

 

 

On-Chip Frame Buffer Size

8MB

 

 

 

DVMT Mode

DVMT

 

 

 

DVMT/FIXED memory Size

128MB

 

 

 

SDVO Device Setting

None

 

 

 

SDVO LVDS Protocol

1 Ch 18bit

 

 

 

SDVO Panel Number

852 x 480

 

 

 

Boot Display

Auto

 

 

 

Panel Scaling

Auto

 

 

 

Panel Number

1024 x 768 18bit SC

 

 

 

Onboard Lan Boot ROM

Enabled

 

 

 

Onboard IT8211F IDE ROM

Enabled

 

 

 

 

 

 

 

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 3/3 or 4/4. 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 3, 4 and 5.

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.

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IB935 User’s Manual

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Contents IB935, IB935RF VersionIB935 USER’S MANUALAcknowledgments Installations BIOS SetupDrivers Installation Realtek HD Code Audio Driver InstallationThe IB935 CPU Card Introduction Product DescriptionINTRODUCTION Checklist ReminderSpecifications Board Dimensions Installations INSTALLATIONSInstalling the CPU Installing the Memory LockDDR2 Module Lock Setting the Jumpers Jumper Locations on IB935 Jumpers on IB935Page JP4 Configure and Recovery Factory use only JP5 Power ON SettingJP7 ICH9 PCI-E port 1-4 Configuration Settings JP11 Clear CMOS ContentsJP7 Setting JP11Connectors on IB935 Connector Locations on IB935 Factory use onlyATX1 ATX 12V Power Connector CPUFAN1 CPU Fan Power ConnectorSYSFAN1, SYSFAN2 SYSTEM Fan Power Connector CN1, CN2, CN3, CN4 SATA HDD ConnectorIDE1 Primary IDE Connector FDC1 Floppy Drive ConnectorIDE1 FDD1VGA1 VGA CRT Connector J1 External Audio ConnectorJ2 Parallel Port Connector AutoFeedJ3 Digital I/O Connector 4 in, 4 out J4 IrDA ConnectorJ5 CD-In Audio Connector J7 COM1 Serial Ports Connector J8 System Function ConnectorJ6 COM2 Serial Port J7 is a 10-pin header support RS232 COM portsSpeaker Pins 1 Power LED Pins 11ATX Power ON Switch Pins 7 and Reset Switch Pins 9 andJ9 PS/2 Keyboard and Mouse Connector J10, J11 External PS/2 Mouse and Keyboard ConnectorJ12 Wake On LAN Connector J13 USB Connector J14 USB ConnectorJ15, J17 Gigabit LAN RJ45 Connector J16 SPI Debug Tools Port Factory use onlyThis page is intentionally left blank BIOS Setup BIOS Introduction BIOS SetupPress DEL to Enter Setup Standard CMOS Features Standard CMOS Setup DateTime IDE Channel Master/SlaveDrive A / Drive B Landing Zone Landing zoneVideo Halt OnThe system boot will not be halted for any error Advanced BIOS Features CPU FeatureHard Disk Boot Priority Quick Power On Self TestFirst/Second/Third Boot Device Boot Other DeviceBoot Up Floppy Seek Boot Up NumLock StatusSecurity Option APIC ModeMPS Version Control for OS OS Select for DRAM 64MBAdvanced Chipset Features DRAM Timing SelectableCAS Latency Time DRAM RAS# to CAS# DelaySystem BIOS Cacheable VGA SettingPrecharge delay tRAS System Memory FrequencyIntegrated Peripherals IDE DMA Transfer Access IDE HDD Block ModeOnChip Secondary PCI IDE IDE Primary/Secondary Master/Slave PIOPower ON Function KB Power ON PasswordHot Key Power ON LEGACY Mode SupportParallel Port Mode PWRON After PWR-FailUSB 1.0 Controller USB 2.0 ControllerPower Management Setup Power ManagementACPI Function ACPI SuspendHDD Power Down Video Off MethodVideo Off In Suspend Suspend TypePower On by Ring Resume by AlarmReload Global Timer Events PNP/PCI Configurations PNP OS InstalledReset Configuration Data Init Display FirstPC Health Status Shutdown TemperatureCPU Warning Temperature Temperatures/Fan Speeds/VoltagesFrequency/Voltage Control Auto Detect PCI ClkSpread Spectrum Load Fail-Safe Defaults Load Optimized DefaultsSet Supervisor Password Save & Exit SetupDrivers Installation IDE Controller Driver Installation……………………………..522. Click IntelR Chipset Software Installation Utility Intel Chipset Software Intallation Utility6. When the Setup Progress screen appears, click Next to continue Intel Graphics Driver Installation 2. Click IntelR Bearlake Chipset Family Graphics DriverRealtek HD Code Audio Driver Installation 2. Click Realtek High Definition Codec Audio DriverIntel PRO LAN Drivers Installation 2. Click IntelR PRO LAN Network Drivers1. The BIOS Setup item “Wake-Up by PCI card” has to be set as Enabled IDE Controller Drivers Installation Appendix A. I/O Port Address MapB. Interrupt Request Lines IRQ LevelC. Watchdog Timer Configuration EnableAndSetWatchdogset count mode as second Name UnlockChip IN None Name ReadReg IN CL - register index D. Digital I/O Sample Code void LockW627HF void //===================================================================== void UnlockW627HF void switch to logic device This page is intentionally left blank APPENDIXIB935 User’s Manual