IBM SBC-659P manual Sdram RAS Precharge Time, System Bios Cacheable, Video Bios Cacheable

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SDRAM RAS Precharge Time

If an insufficient number of cycles is allowed for the RAS to accumulate its charge before DRAM refresh, the refresh may be incomplete and the DRAM may fail to retain date. Fast gives faster performance; slow gives more stable performance. This field applies only when synchronous

DRAM is installed in the system.

System BIOS Cacheable

Selecting Enabled allows caching of the system BIOS ROM at F0000h- FFFFFh, resulting in better system performance. However, if any program writes to this memory area, a system error may result. The choices:

Enabled, Disabled

Video BIOS Cacheable

Selecting Enabled allows caching of the video BIOS ROM at C0000h to C7FFFh, resulting in better video performance. However, if any program writes to this memory area, a system error may result. The choices:

Enabled, Disabled Memory

Memory Hole At 15-16m

In order to improve performance, certain space in memory is reserved for ISA cards. This memory must be mapped into the memory. The choices:

15-16 M, disabled

CPU Latency Timer

During enable, a deferrable CPU cycle will only be Deferred after it has been in Snoop Stall for 31 clocks and another ADS# has arrived. During disable, a deferrable CPU cycle will be deferred immediately after the

GMCH receives another ADS#.

Delayed Transaction

The chipset has an embedded 32-bit posted write buffer to support delay transactions cycles. Select Enabled to support compliance with PCI specification version 2.1.

Chapter 3 Award BIOS Setup 55

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Contents SBC-659P Copyright Notice Acknowledgments Message to the Customer Aaeon Customer ServicesProduct Warranty Packing list Page Contents Award Bios Setup Drivers and Utilities General Information Introduction Features Standard Half-size SBC functions SpecificationsCompact Flash socket onboard Mechanical and environmental Board Layout Board Dimensions Installation Removing the CPU Safety precautionsInstalling a CPU Setting jumpers Supplementary information about Dimm Installing SodimmJumpers Function JumpersConnector Function ConnectorsLocating Jumpers and Connectors Locating of Solder Side Connectors Mechanical Drawing Mechanical Drawing Front Panel JP1 Clear Cmos JP2System Frequency JP3 COM2 Ring, +5V, +12V JP4 RS-232/422/485 COM2JP5,JP6 Setting Pin Signal Digital Video Output Connector CN1External Power On Connector CN2 IDE Hard Drive Connector CN3 USB connector CN5, CN6 Floppy Drive Connector CN7 VGA display connector CN8 VGA connector CN8Audio Connector CN9 Ethernet ConnectorsCN12,CN10 COM 1 CN 13 & COM 2 CN 11 Serial Ports Power connector CN16 Internal Keyboard Connector CN15Parallel port IRQ Parallel port connector CN17PS/2 keyboard and mouse connectorsCN18 IrDA Connector CN19North bridge chip Fan Connector CN21 CPU Fan power connectors CN20Compact Flash Connector CN22 Award Bios Setup To Enter Setup Before Boot Press DEL KEY Starting setupThese keys helps you navigate in Award Bios Setup keysGetting Help Case of ProblemsMain Setup Menu Load Fail-Safe Defaults PnP/PCI ConfigurationLoad Optimized Defaults Set Supervisor/User PasswordDate and Time Configuration Standard Cmos FeaturesAward Bios Setup Drive a Drive B Base Memory Halt OnMemory Other Memory Extended MemoryVirus Warning Advanced Bios FeaturesQuick Power On Self Test Processor Number FeatureFirst/Second/Third/Fourth Boot Device CPU Internal Cache/External CacheBoot Up NumLock Status Boot Up Floppy SeekBoot Up System Speed Swap Floppy DriveTypematic Delay Msec- Sets the delay time Typematic Rate Setting- Key strokes repeat at aTypematic Rate Chars/Sec- Sets the number Security OptionReport No FDD For WIN 95- Report HDD S.M.A.R.T CapabilityEPA Logo Select Small LogoEPA showSdram RAS-to-CAS Delay Advanced Chipset FeaturesSdram CAS Latency Time Sdram Cycle Time Tras/TrcVideo Bios Cacheable System Bios CacheableCPU Latency Timer Delayed TransactionPaging Mode Control On board Display Cache Setting CAS LatencyAGP Graphics Aperture Size Display Cache FrequencyRAS#Percharge Timing RAS-to-CAS OverrideRAS#Timing On-Chip Primary PCI IDE Integrated PeripheralsOn-Chip Secondary PCI IDE IDE Primary/Secondary Master/Slave PIOPower on Function IDE HDD Block ModeUSB Controller USB Keyboard SupportHot Key Power On KB Power on PasswordUart Mode Select Onboard FDC ControllerECP Mode Use DMA Parallel Port ModeOnboard Serial Ports 1 Onboard Parallel PortWatch Dog Timer Acpi Function Power Management SetupVideo Off Method Power ManagementHDD Power Down Suspend ModeVideo Off In Suspend Suspend TypeReload Global Timer Events Power On By RingResume By Alarm Reset Configuration Data PnP/PCI ConfigurationsPnP OS installed IRQ Resources Resources Controlled ByDMA Resources PCI/VGA Palette SnoopPC Health Status Shutdown TemperatureFrequency/Voltage Control Clock By Slight AdjustAuto Detect DIMM/PCI CLK Spread SpectrumLoad Fail-Safe Defaults Load Optimized Default Load Optimized DefaultEnter Password Set Supervisor PasswordSet User Password Save to Cmos and Exit Save to Cmos and ExitExit without Saving Drivers Installation Installing Drivers Installing Chipset Driver for Windows 95/98 Installing Ultra ATA Storage Driver for Windows 95/98 Installing Intel 82559 for Windows 95 or 98 Ver Installing VGA for Windows 95/98 Installing Audio for Windows 95/98 Please perform this procedure first Installing Security Driver for Windows NTInstalling Ultra ATA Storage Driver for Windows NT Installing VGA for Windows NT Installing Audio for Windows NT ==Intel Pro Adapter will appear ==Click on OK Installing Intel 82559 for Windows NTInstalling VGA for Windows Installing Audio for Windows