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#$ 1.2.1. The 845PE-ANT Mainboard The 845PE-ANT mainboard is a Pentium™ 4/ Celeron DDR platform. It sup- ports a maximum memory of 2 GB and comes with six USB2.0 ports. Onboard it has six PCI slots and a 1x/2x/4x AGP slot (which only supports 1.5V AGP cards).
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DC power supply from +1.10V to +1.85V. System Memory The 845PE-ANT mainboard uses Double Data Rate Dual Inline Memory Mod- ules (DDR DIMM). Each mainboard has two 184-pin DIMM sockets. These sockets support 2.5V (power level) single-sided or double-sided PC2100 (DDR266) or PC2700 (DDR333) DDR DIMM modules.
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USB Ports USB allows data exchange between your computer and a wide range of simultaneously accessible external Plug and Play peripherals. The 845PE-ANT mainboard is equipped with six USB2.0 connectors. USB 1 and USB 2 are external connectors. They can be found on the PC 99 ATX connector. The other USB connectors are internal connectors and can be used to connect other USB devices.
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Read back capability that displays temperature, voltage and fan speed. 1.4.1. Hardware Monitoring System Utility The 845PE-ANT mainboard comes with the Hardware Monitoring System utility contained on the CD. It is capable of monitoring the systems hardware conditions such as the temperature of the processor, voltage, and the speed of both the CPU and chassis fans.
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Auxiliary In AUX-IN External Connectors PS/2 Keyboard Connector PS/2 Mouse Connector Serial Port 1 COM1 Serial Port 2 COM2 Parallel Port Universal Serial Port 1 USB1 Universal Serial Port 2 USB2 CN18 GAME/MIDI Port GAME/MIDI The 845PE-ANT MAINBOARD Page 11...
Install a proper heat sink with cooling fan for proper heat dissi- pation. Failing to install a heat sink with cooling fan may cause over- heating which will burnout your CPU and damage your mainboard. Page 12 The 845PE-ANT MAINBOARD...
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CPU. 2.4.2. Memory Modules The 845PE-ANT mainboard has two 184-pin DDR DIMM slots and is able to support a maximum memory of 2 GB. The DDR DIMM slots are located on the right hand side of the board.
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Hardware Installation 2.4.3. PCI Slots The 845PE-ANT mainboard comes with six PCI slots. They are located on the left hand side of the board. Both PCI and PCI expansion cards may require IRQ’s. This mainboard complies with Plug and Play (PnP) specifications. When- ever a PnP compliant card is added the system will automatically be configured and the IRQ’s will be assigned automatically.
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Type: 40 pin blocks The 845PE-ANT mainboard has two IDE connectors: a primary and secon- dary. Each IDE connector can support two IDE drives. This mainboard can therefore support up to four IDE devices. If you install two hard drives, you need to configure the second drive to slave mode in the BIOS setup.
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Type: 3 pin The 845PE-ANT mainboard has a WOL (Wake-On-LAN) connector. This con- nector must be connected to a LAN card that has Wake-On-LAN (WOL) output. This connector powers up the system when a wakeup packet or signal is re- ceived through the LAN card.
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Type: 4 pin un-housed This 845PE-ANT mainboard has one CD-IN connector and one AUX-IN con- nector. The CD-IN connector is used to connect the CD ROM audio out and allows the system to receive audio input from the CD ROM. The AUX-IN con- nector allows the system to receive signals from other audio devices like a ra- dio or tape.
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PC. This makes things like plugging in speakers and earphones much less troublesome. Please make sure the Pin 1 location. Front Audio Connector MIC-IN (Left) Ground MIC-IN (Right) LINE-OUT R LINE-OUT L Page 18 The 845PE-ANT MAINBOARD...
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Any read and write activity by the HDD will turn this LED on. 2.6.4. RS: Reset Button Connector If you connect this connector, you will be able to reset you computer by press- ing the reset button at the front of the chassis. The 845PE-ANT MAINBOARD Page 19...
CN 3 (COM 1) Type: 9 pin male One serial port is available for a mouse and COM 1 COM 2 other serial devices. (I/O addresses used are 3F8H/2F8H/3E8H/2E8H and IRQ3/IRQ4, selected by CMOS setup.) Page 20 The 845PE-ANT MAINBOARD...
It can either be used to connect a joystick to the computer for game participation, or it can be used to attach an external MIDI device. All these motherboards have 3D audio interfaces onboard. SPK-OUT LINE-IN MIC-IN The 845PE-ANT MAINBOARD Page 21...
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FSB will be forced to be 400 MHz. If all the pins are left open then the FSB will be forced to be 533MHz. Pins Frequency Pin 1 and Pin 2 Short Auto Detect FSB Clock Speed Pin 2 and Pin 3 Short 400 MHz All OPEN 533 MHZ Page 22 The 845PE-ANT MAINBOARD...
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Insert the jumper cap on Pin 2 and Pin 3 for 3 ~ 5 seconds. Pull out the jumper cap and replace it on Pin 1 and Pin 2. Turn your PC on and run the BIOS setup program. The 845PE-ANT MAINBOARD Page 23...
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This mainboard supports four IDE Hard Drives. These fields allow you to set your Hard Drive parameters. Move the selection bar to the IDE Hard Drive you want to configure. Press the "ENTER" key. If you select “AUTO” the system BIOS will detect the HDD type automatically. The 845PE-ANT MAINBOARD Page 25...
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> Drive A /B The 845PE-ANT mainboard can support up to two floppy disk drives. These two selection fields allow you to select the floppy drives that are installed on your computer. Select the correct specifications for the diskette drive(s) in- stalled on your computer.
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Programmable Interrupt Controller) BIOS feature. APIC is usually used together with Hyper-Threading Technology or used in multiprocessor main- board, APIC allows better IRQ management. But note that APIC is not supported on Win95 and Win98. The 845PE-ANT MAINBOARD Page 27...
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40 or 80 tracks. Only 360-KB floppy drives have 40 tracks; drives with 720 KB, 1.2 MB, and 1.44 MB capacity all have 80 tracks. Very few modern PCs have 40-track floppy drives so we therefore recommend that you set this field to Disabled to save time. Page 28 The 845PE-ANT MAINBOARD...
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If you are not using a floppy disk this option allows you to release IRQ6. To do this set this option to Yes. You should then also disable the onboard FDC Controller in the Integrated Peripherals Screen. The 845PE-ANT MAINBOARD Page 29...
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This mainboard supports both DDR266 and DDR333 SDR mod- ules. If you do not know what the frequency of your memory modules is then select auto and the system will automatically decide. Page 30 The 845PE-ANT MAINBOARD...
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Ultra DMA/66, select Auto to enable BIOS support. USB Controller This field allows you to enable or disable the onboard USB Controller. USB 2.0 Controller This field allows you to enable or disable the onboard USB 2.0 Controller. The 845PE-ANT MAINBOARD Page 31...
“Auto”. If you install an add on sound card you must disable this field. Init Display First When both an AGP and PCI VGA card are installed on a mainboard, this field can be used to determine the display loading priority during System Startup. Page 32 The 845PE-ANT MAINBOARD...
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Onboard Serial Port 2 option then you will probably not be able to configure this field. IR Transmission Delay This field allows you to “Enable” or “Disable” the IR Transmission Delay. UR2 Duplex Mode This Field allows you to select the IR half or full duplex function. The 845PE-ANT MAINBOARD Page 33...
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This field allows you to select the I/O address for the onboard MIDI port. De- fault is 330. Midi Port IRQ This field allows you to select the IRQ for the onboard MIDI port. Default is 10. Page 34 The 845PE-ANT MAINBOARD...
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Video Off Method This field determines how a monitor is made blank. See the table next page. The 845PE-ANT MAINBOARD Page 35...
When Enabled, an event occurring on each device listed below will restart the global time for the standby mode. Primary IDE 0 Primary IDE 1 Secondary IDE 0 Secondary IDE 1 FDD, COM, LPT Port PCI PIRQ[A-D] Page 36 The 845PE-ANT MAINBOARD...
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MPEG Card) which may not display color properly on your screen. “Enable” the setting in this field may correct this problem. Leave it “Disabled” as the default setting shown above if you are using the normal display card. The 845PE-ANT MAINBOARD Page 37...
This field shows you the speeds of the three cooling fans on the mainboard. Vcore This field and the fields below it show you the current system voltage Shutdown Temperature When the system reaches a certain maximum temperature the system will automatically shutdown. Page 38 The 845PE-ANT MAINBOARD...
PCI slots. When there is no device present on some of the PCI connectors, the clock on the related PCI slot will be disabled to reduce the Electro-Magnetic Interference (EMI). Spread Spectrum When Spread Spectrum is enabled, the EMI radiation on this mainboard will be reduced. The 845PE-ANT MAINBOARD Page 39...
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If the CMOS data is corrupted, or if you selected some CMOS settings and find that the PC system becomes very unstable, you should try to load the opti- mized default values first and then re-configure the BIOS. Page 40 The 845PE-ANT MAINBOARD...
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Whenever you turn on the PC, it will request the user to enter the Password in order to boot up your system. Without the correct password, the PC system will stop and the operating system will not be loaded. The 845PE-ANT MAINBOARD Page 41...
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2. When "System" is selected in Security Option: When you turn on your PC, you will be requested to enter the Password. With- out the correct password, the PC system will stop and the operation system will not be loaded. Page 42 The 845PE-ANT MAINBOARD...
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CMOS RAM. If you do not want to save any of the changes, or settings you selected in the BIOS SETUP utility, move the selection bar to the “EXIT WITHOUT SAVING” option. Press the “Enter” key. Then press “Y” The 845PE-ANT MAINBOARD Page 43...
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If you look at the top of Pin 2 in Pic 2b you will see that there is no connec- tion to the AGP card. This means that this is a 3.3 volt AGP card and can ® therefore not be used on an Intel 845PE mainboard. Page 44 The 845PE-ANT MAINBOARD...
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The first method is a physical check and the second method is a simple measurement between Pin 2 (on Side A) and any ground point on the card. The second method is the recommended method but both methods SHOULD suffice. The 845PE-ANT MAINBOARD Page 45...
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