Abit NF7-S2G PCI/VGA Palette Snoop, Allocate IRQ to Video, Allocate IRQ to USB, PCI Latency Timer

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BIOS Setup

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Back to PnP/PCI Configurations Setup Menu:

PCI/VGA Palette Snoop:

This item determines whether the MPEG ISA/VESA VGA cards can work with PCI/VGA or not.

[Disabled]: MPEG ISA/VESA VGA cards do not work with PCI/VGA.

[Enabled]: MPEG ISA/VESA VGA cards work with PCI/VGA.

Allocate IRQ to Video:

This item assigns an IRQ for the VGA card installed.

[Enabled]: Automatically assign an IRQ for the VGA card installed.

[Disabled]: The IRQ that was previously occupied by the VGA card will be available for new device.

Allocate IRQ to USB:

This item assigns an IRQ for the USB device connected.

[Enabled]: Automatically assign an IRQ for the USB device connected.

[Disabled]: The IRQ that was previously occupied by the USB device connected will be available for new device.

PCI Latency Timer:

The DEC (decimal) numbers from 0 to 255 are available, with the default setting at 32. This item can let you set the PCI latency clock delay time. Which means, you can set how many clocks you want it delay.

PIRQ_0 Use IRQ No. ~ PIRQ 3 Use IRQ No.:

This item specifies the IRQ number manually or automatically for the devices installed on PCI slots.

For the relations between the hardware layout of PIRQ (the signals from the south bridge chipset), INT# (means PCI slot IRQ signals) and devices, please refer to the table below:

Signals

PCI-1

PCI-2

PCI-3

PCI-4

PCI-5

SATA

PIRQ_0 Assignment

INT C

INT B

INT A

INT D

INT C

 

PIRQ_1 Assignment

INT D

INT C

INT B

INT A

INT D

 

PIRQ_2 Assignment

INT A

INT D

INT C

INT B

INT A

INT A

PIRQ_3 Assignment

INT B

INT A

INT D

INT C

INT B

 

 

 

 

 

 

 

 

NOTE:

•PCI slot 1 shares IRQ signals with PCI-5, and SATA.

•If you want to install two PCI cards into those PCI slots that share IRQ with one another at the same time, you must make sure that your OS and PCI devices’ driver supports the IRQ sharing function.

User’s Manual

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Page 62 Page 64
Contents NF7 Series Copyright and Warranty Notice Table of Contents Appendix a Introduction Features & SpecificationsIeee 1394 NF7-S NF7-S2G Model Chipset Features NF7-SNF7-M NF7-S2Layout Diagram NF7/NF7-S Layout Diagram NF7-M Layout Diagram NF7-S2/NF7-S2G, Ver Hardware Setup Install The MotherboardInstall CPU and Heatsink Chapter Install System Memory Valid Memory Configurations Bank Memory Module Total MemoryTotal System Memory for Un-buffered & Non-ECC DDR 400 Dimm Connectors, Headers and Switches ATX Power Input ConnectorsNF7/NF7-S/NF7-MNF7-S2/NF7-S2G FAN Connectors Pin 1-2 shorted default Normal operation Cmos Memory Clearing HeaderNF7/NF7-S/NF7-M NF7-S2/NF7-S2G NF7/NF7-S/NF7-M Wake-up HeaderNF7-S2/NF7-S2G Ver SPK Pin 15, 17, 19 Front Panel Switches & Indicators HeadersNF7/NF7-S/NF7-MNF7-S2/NF7-S2G Hled Pin 1 RST Pin 5Infrared Device Header NF7/NF7-S/NF7-M VCC Additional USB Port HeadersAdditional IEEE1394 Port Headers NF7-S Front Panel Audio Connection Header NF7-S2/NF7-S2G Internal Audio Connectors Accelerated Graphics Port Slot Floppy Disk Drive Connector IDE Connectors NF7-S2/NF7-S2G Serial ATA Connectors NF7-S/NF7-S2/NF7-S2G Status Indicators System Management Bus Headers Back Panel Connectors NF7/NF7-S NF7-M NF7-S2/NF7-S2G AUDIO1 Bios Setup EscF10 CPU Operating Speed SoftMenu SetupCPU Name Is CPU Internal FrequencyCPU FSB/DRAM ratio Power Supply ControllerMultiplier Factor AGP FrequencyFSB Frequency Brand NameFrequency System PerformanceCAS Latency Time Row-active delayRAS-to-CAS delay Row-precharge delayStandard Cmos Features NF7/NF7-S/NF7-M NF7-S2/NF7-S2G Date mmddyyTime hhmmss Capacity NF7/NF7-S/NF7-M NF7-S2/NF7-S2G IDE HDD Auto-DetectionPrecomp Floppy 3 Mode SupportCylinder HeadExtended Memory Base MemoryAdvanced Bios Features Swap Floppy Drive Boot Up Floppy SeekBoot Up NumLock Status Apic ModeDelay IDE Initial Report No FDD For OSFull Screen Logo Show NF7-S2/NF7-S2G System Bios Cacheable Advanced Chipset FeaturesFSB Spread Spectrum Video RAM CacheableAGP Aperture Size Frame Buffer Size For NF7-M onlyAGP Aperture Size MB AGP 8X SupportSpecial I/O for PCI Card OnChip IDE1 Controller Master/Slave Drive PIO ModeIntegrated Peripherals OnChip IDE DeviceOnChip PCI Device IDE Prefetch ModeOnChip IDE2 Controller IDE Bus MasterIEEE1394 Controller For NF7-S Only LAN Boot ROMAudio Controller LAN ControllerOnboard FDD Controller IR Transmission DelayUse IR Pins EXT-P2P’s Discard TimeIDE Function Setup Parallel1 Port ModeEPP Mode Select ECP Mode Use DMAOnChip IDE-1/IDE-2 Controller Onboard DeviceSerial-ATA USB KB. Storage SupportSuperIO Device Sata Spread SpectrumInit Display First Power Management Setup KB Power On Password Power-On by Alarm NF7-S2/NF7-S2GDay of Month Alarm/ Time hhmmss Alarm Power On FunctionRestore on AC Power Loss IRQ Resources PnP/PCI ConfigurationsForce Update Escd Resources Controlled ByAllocate IRQ to USB PCI Latency TimerPCI/VGA Palette Snoop Allocate IRQ to VideoAssign IRQ for VGA NF7-S2/NF7-S2GPirq 0 Assignment ~ Pirq 3 Assignment Assign IRQ for USBCPU Shutdown Temperature / Shutdown Temperature CPU Warning TemperaturePC Health Status Save & Exit Setup Load Fail-Safe DefaultsLoad Optimized Defaults Set PasswordNF7 Series Appendix A. Install Nvidia nForce Chipset Driver Click Continue Anyway Appendix B. Install Integrated GPU Driver NF7-M Appendix B Appendix C. Install USB 2.0 Driver Appendix C Appendix D. Install LAN Driver NF7-S2G Appendix D Appendix E. Install Serial ATA Driver NF7-S Click Finish Main Menu Bios Setup for Serial ATA RAIDRAID Configuration Utility Menu Array ModeOption Delete RAID set Option Rebuild Mirrored setOption Resolve Conflicts Define a New Array Appendix F. Bios Setup for Nvraid NF7-S2/NF7-S2GSetting Up the Bios Nvidia RAID Utility MenuAssinging the Disks Selecting the RAID ModeArray Detail Array ListNF7 Series Appendix G. Abit EQ The Hardware Doctor Utility Appendix G Appendix H. FlashMenu Bios Update Utility Appendix H Appendix I. Troubleshooting Need Assistance? Example Main instructions Technical Support Form Appendix J. How to Get Technical Support Alt.comp.hardware.homebuilt alt.comp.hardware.pc-homebuilt 4QX, UK Thank You Abit Computer Corporation

NF7, NF7-S2G, NF7-M, NF7-S2, NF7-S specifications

The Abit NF7 series of motherboards, which includes the NF7-S, NF7-S2, NF7-M, NF7-S2G, and NF7, is renowned for its performance, stability, and advanced features tailored for AMD processors during the early 2000s. These boards were particularly popular for enthusiasts and gamers seeking to build high-performance systems with the nForce2 chipset, which significantly enhanced system capabilities.

The NF7-S, the flagship model, stood out due to its comprehensive feature set. It supported a broad range of AMD processors, including the Athlon XP and Duron, which made it an appealing choice for various users. One of its main attractions was the dual-channel memory technology, permitting up to 2GB of DDR RAM, effectively doubling memory bandwidth and improving performance in memory-intensive applications.

Another significant feature of the NF7-S was its integrated Universal Audio Codec, delivering high-quality sound without the need for a separate sound card. Additionally, it offered a fast 133MHz FSB (Front Side Bus), enabling remarkable speed in data transfer, thereby enhancing the overall system performance. The motherboard also featured several expansion slots, including AGP 8x and PCI slots, allowing users to install a range of graphics cards and peripherals.

The NF7-S2, a slightly reduced version, maintained many capabilities of the NF7-S while providing essential features suitable for budget-conscious builders. It came with single-channel memory support but still leveraged the strengths of the nForce2 chipset, ensuring solid performance for general computing and light gaming.

The NF7-M was tailored for micro-ATX systems, representing a compact solution for those who needed a smaller footprint without sacrificing performance. With similar specs to its larger counterparts, it also supported dual-channel memory and offered significant connectivity options.

The NF7-S2G included integrated graphics capabilities, catering to users who preferred a more straightforward setup without dedicated graphics cards. This model offered a great balance for everyday computing tasks and casual gaming.

In summary, the Abit NF7-series motherboards were pivotal in advancing desktop performance during their time, providing users with robust options filled with innovative technologies and a variety of features designed for different needs, solidifying their legacy in the history of computer hardware.
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