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Chapter 3 BIOS Setup

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EC0-1814(B)

System Resource Managed by BIOS under X86 Platform

We define three kinds of system resources here: I/O port address, IRQ interrupt

number and DMA number.



DMA

Level

Function

DMA0

DRAM Refresh

DMA1

Unassigned

DMA2 Floppy

Disk

DMA3

Unassigned (sometimes used for hard disk)

DMA4

Used for DMAC Cascade

DMA5

Unassigned

DMA6

Unassigned

DMA7

Unassigned



APIC

Advanced programmable interrupt controller. Most motherboards above P4 level

support APIC and provide more than 16 interrupt sources, like IRQ16 - IRQ23; while

some others can have up to 28 interrupt sources, such as motherboard supporting

PCI-X. However, relevant OS are required to enable that function, and currently, only

the OS above Windows 2000 could support that function.



IO Port Address

There is 64K for the system I/O address space. Each peripheral will occupy portion of

the space. The table below shows the I/O address assignments for part of the devices

of the CPU card. As the address of PCI device (e.g. PCI network card) is configured

by software, it is not listed in this table.

Содержание EC0-1814

Страница 1: ...EC0 1814 B Embedded ATX 带 VGA 2LAN 6COM Embedded ATX with VGA 2LAN 6COM Version C00 ...

Страница 2: ...tected by copyright No part of this manual may be reproduced stored in any retrieval system or transmitted in any form or by any means mechanical electronic photocopied recorded or otherwise without the prior written permission from the manufacturer Trademarks EVOC is a registered trademark of EVOC Intelligent Technology Co Ltd Other product names mentioned herein are used for identification purpo...

Страница 3: ...herboards or expansion cards first disconnect the computer and peripherals from their power sources to prevent electric shock to human bodies or damage to the product 6 Remember to disconnect the AC power cord from the socket before removing the board or moving the PC 7 For PC products remember to disconnect the computer and peripherals from the power sources before inserting or removing a board 8...

Страница 4: ... System Memory 2 Graphics Function 2 Network Function 3 Audio Function 3 Power Feature 3 Expansion Bus 3 Watchdog Function 3 Operating System 3 On board I O 3 Chapter 2 Installation 5 Product Outline 5 Locations of Connectors 6 Structure 7 Jumper Setting 8 Serial Port 9 USB Port 9 LAN Port 10 Power Connector 11 Audio Connector 12 SATA Connector 12 ...

Страница 5: ...tor 18 Fan Connector 18 PCI Slot 19 PCIex16 Slot 21 PCIex4 Slot 22 Install the CPU 23 Install the CPU Fan 23 Chapter 3 BIOS Setup 25 BIOS Overview 25 BIOS Parameter Setup 25 Basic Function Setting for BIOS 26 System Resource Managed by BIOS under X86 Platform 38 Chapter 4 Install the Drivers 42 Appendix 43 Watchdog Programming Guide 43 Digital IO Programming Guide 45 Troubleshooting and Solutions ...

Страница 6: ...ovides one PCIe x16 expansion slot one PCIe x4 expansion slot and four PCI expansion slots which provides abundant expansion choices for customers The product realizes high performance as well as miniature design thus it can satisfy the embedded requirements for such industries as ATM POS NET and Media etc Mechanical Dimensions Weight and Environment Dimensions 304 8mm L x 251 2mm W x 41 2mm H Net...

Страница 7: ...tium E6000 E5000 and E2000 series and Intel Celeron E1000 E3000 and 400 series CPU of LGA775 package FSB 800 1066 1333MHz Intel Core 2 Extreme QX9000 series CPU is not supported Chipset Intel G41 Intel ICH7R System Memory Provides two 240Pin DDR3 memory slots supporting 800 1066MHz Un buffered non ECC memory The maximum memory capacity supported by a single memory module is up to 2GB while that su...

Страница 8: ...ion Bus Provides four 32 bit PCI slots one PCIE x16 slot and one PCIE x4 slot Watchdog Function 255 levels programmable by minute or second Supports watchdog timeout interrupt or reset system Operating System Supported OSs Windows XP and Linux On board I O Six serial ports COM1 and COM2 support RS 232 RS 422 RS 485 mode selection Modem wake up function is not supported One IDE connector Four SATA ...

Страница 9: ...Chapter 1 Product Introduction 4 EC0 1814 B One 8 chanenl digital I O Tips how to identify the alarms 1 Long beep indicates system memory error 2 Short beep indicates to power on the computer ...

Страница 10: ...line H1 H8 H2 H10 H6 H4 H5 H7 H9 H3 Unit mm Warning Please adopt appropriate screws and proper installation methods including board allocation CPU and heat sink installation etc otherwise the board may be damaged It is recommended to use M3x6 GB9074 4 88 screws at H1 H10 ...

Страница 11: ... H1 H8 H2 AUDIO1 J3 J2 J1 KM1 H10 PWR2 PCIE2 PCI1 PCI2 PCI3 PCI4 PCIE1 GPIO1 COM2 COM3 COM4 COM5 COM6 JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP12 CPUFAN1 PWR1 H6 FP1 FP3 FP2 H4 J5 SATA1 SATA2 SATA3 SATA4 J4 H5 FDD1 H7 SYSFAN1 IDE1 DIMM1 DIMM2 H9 H3 JCC1 ...

Страница 12: ...PC SIO SATA Port 1 4 CH A DMI X4 10 100 1000 Mbps LAN USB 2 0 G41 Fan Control VGA MAX 24W RJ45 DIMM1 MAX 3 3W SPI Keyboard Connector Connector PCI E Port 6 DDR3 USB 2 0 COM2 HDA COM1 PCI E Port5 LPC Bus USB PORT 4 7 USB PORT 0 3 FSB Bus 8GPIO 10 100 1000 Mbps LAN Tip How to identify the first pin of the jumpers and connectors 1 Observe the letter beside the socket the first pin is usually marked w...

Страница 13: ...on 1 2 Open Normal Default JCC1 1 2 Short Clear the contents of CMOS and all BIOS settings will restore to factory default values 2 JP1 JP10 RS 232 RS 422 RS 485 Mode Selection for COM1 and COM2 Pitch 2 54mm Mode Selection Pin Setting RS 232 RS 485 RS 422 JP1 1 2 3 4 5 6 JP2 1 2 2 3 2 3 JP3 1 2 2 3 2 3 JP4 1 2 2 3 2 3 JP5 1 2 2 3 2 3 JP6 1 2 3 4 5 6 JP7 1 2 2 3 2 3 JP8 1 2 2 3 2 3 JP9 1 2 2 3 2 3 ...

Страница 14: ...acturers Signal Name COM1 COM6 COM1 COM2 Pin RS 232 RS 422 RS 485 1 DCD TXD Data 2 RXD TXD Data 3 TXD RXD NC 4 DTR RXD NC 5 GND GND GND 6 DSR NC NC 7 RTS NC NC 8 CTS NC NC 9 RI NC NC J1 COM1 COM2 COM6 10 NA NA NA Note the data transmission direction is controlled automatically at RS 485 mode USB Port The board provides two sets of RJ45 dual USB connectors J2 and J3 and two sets of 2x5Pin USB pin h...

Страница 15: ...A 10 GND LAN Port The board provides two 10 100 1000Mbps LAN ports RJ45 dual USB connectors J2 and J3 J2 J3 LAN LILED Dual Color Y G LAN Speed Indicator ACTLED Green LAN Activity Status Indicator Green 1000Mbps Blink Data Transmitting Yellow 100Mbps Off No Data to Transmit Off 10Mbps Note it adopts RJ45 2USB combo socket of SUYIN 020180M500PM417ZA ...

Страница 16: ... 4 2mm Pin Signal Name Pin Signal Name 1 3 3V 13 3 3V 2 3 3V 14 12V 3 GND 15 GND 4 5V 16 PS_ON 5 GND 17 GND 6 5V 18 GND 7 GND 19 GND 8 PWROK 20 5V 9 5VSB 21 5V 10 12V 22 5V 11 12V 23 5V PWR1 12 3 3V 24 GND 2 ATX 12V Power Connector Pitch 4 2mm Pin Signal Name 1 GND 2 GND 3 12V PWR2 4 12V ...

Страница 17: ...1 5 and 10 Pin Signal Name 1 GND 2 TX 3 TX 4 GND 5 RX 6 RX SATA1 SATA4 7 GND Hot swap of SATA Hard Disk Notes for hot swap of SATA hard disk 1 The hard disk shall support SATA 2 0 and use 15 pin SATA hard disk power connector 2 The driver of chipset shall support the hot swap of SATA hard disk 3 Hot swap of SATA hard disk with the operating system is forbidden when system is powered on ...

Страница 18: ... hard disk or result in data loss Hot Plug Step 1 Please plug the 1 x 4 pin SATA power connector white into the power adapter Step 2 Please connect the SATA data cable to the SATA connector on board Step 3 Please connect the 15 pin SATA power connector black to the SATA hard disk SATA Data Cable SATA Power Cable ...

Страница 19: ...ase connect the SATA data cable to the SATA hard disk Hot Unplug Step 1 Uninstall the hard disk from the device manager Step 2 Unplug the data cable from the SATA hard disk Step 3 Unplug the SATA 15 pin power connector black from the SATA hard disk ...

Страница 20: ...iate D SUB 15Pin male terminal Pin Signal Name Pin Signal Name 1 Red 2 Green 3 Blue 4 NC 5 GND 6 GND 7 GND 8 GND 9 NC 10 GND 11 NC 12 DDCDATA 13 HSYNC 14 VSYNC J1 VGA1 15 DDCCLK GPIO Connector Pin Signal Name Pin Signal Name 1 GPIO1 2 GPIO5 3 GPIO2 4 GPIO6 5 GPIO3 6 GPIO7 7 GPIO4 8 GPIO8 GPIO1 Pitch 2 54mm 9 GND 10 NC Note the factory default values for the connector are pin 1 3 5 and 7 are for TT...

Страница 21: ...STB 14 AFD 2 PD0 15 ERR 3 PD1 16 INIT 4 PD2 17 SLIN 5 PD3 18 GND 6 PD4 19 GND 7 PD5 20 GND 8 PD6 21 GND 9 PD7 22 GND 10 ACK 23 GND 11 BUSY 24 GND 12 PE 25 GND J1 LPT 13 SLCT IDE Connector The board provides one standard IDE connector Pitch 2 54mm supporting Ultra ATA 100 66 33 BMIDE and PIO modes IDE1 Pin Signal Name Pin Signal Name 1 RESET 2 GND 3 D7 4 D8 5 D6 6 D9 7 D5 8 D10 9 D4 10 D11 11 D3 12...

Страница 22: ...36 DA2 37 CS1 38 CS3 39 LED 40 GND Floppy Driver Connector The board provides one standard floppy driver connector Pitch 2 54mm Pin Signal Name Pin Signal Name 1 GND 2 DENSEL 3 GND 4 NC 5 KEY 6 DRATE 7 GND 8 INDEX 9 GND 10 MOA 11 GND 12 DSB 13 GND 14 DSA 15 GND 16 MOB 17 GND 18 DIR 19 GND 20 STEP 21 GND 22 WD 23 GND 24 WE 25 GND 26 TRACKO 27 GND 28 WP 29 NC 30 RDATA 31 GND 32 HDSEL FDD1 33 NC 34 D...

Страница 23: ...mm Pin Signal Name Pin Signal Name 1 PWRBTN 2 GND 3 GND 4 RESET FP1 5 HDD_LED 6 HDD_LED Power Indicator Connector Pitch 2 54mm Pin Signal Name 1 5V 2 NC FP2 3 GND Loudspeaker Output Connector Pitch 2 54mm Pin Signal Name 1 SPEAKER 2 NC 3 GND FP3 4 5V Fan Connector The board provides two standard fan connectors CPUFAN1 and SYSFAN1 with PWM speed adjustment and speed feedback function Pay attention ...

Страница 24: ...o use a fan with speed detection Adjust the fan s airflow to the direction of heat venting Pin Signal Name 1 GND 2 12V 3 FAN_IO CPUFAN1 SYSFAN1 Pitch 2 54mm 4 FAN_PWM Note FAN_IO fan speed impulse output FAN_PWM fan speed PWM control PCI Slot The board provides four standard PCI slots PCI1 PCI2 PCI3 PCI4 SLOTS version2 2 and 5V system Environment Pin Signal Name Pin Signal Name Pin Signal Name Pin...

Страница 25: ...AD13 B16 PCI_CLK B46 GND A17 PCI_GNT A47 PCI_AD11 B17 GND B47 PCI_AD12 A18 GND A48 GND B18 PCI_REQ B48 PCI_AD10 A19 PCI_PME A49 PCI_AD9 B19 5V B49 GND A20 PCI_AD30 A50 PCI_C BE 0 B20 PCI_AD31 B50 PCI_AD8 A21 3 3V A51 3 3V B21 PCI_AD29 B51 PCI_AD7 A22 PCI_AD28 A52 PCI_AD6 B22 GND B52 3 3V A23 PCI_AD26 A53 PCI_AD4 B23 PCI_AD27 B53 PCI_AD5 A24 GND A54 GND B24 PCI_AD25 B54 PCI_AD3 A25 PCI_AD24 A55 PCI...

Страница 26: ...ERn0 A18 GND B17 PRSNT2 B18 GND A19 RSVD A20 GND B19 PETp1 B20 PETn1 A21 PERp1 A22 PERn1 B21 GND B22 GND A23 GND A24 GND B23 PETp2 B24 PETn2 A25 PERp2 A26 PERn2 B25 GND B26 GND A27 GND A28 GND B27 PETp3 B28 PETn3 A29 PERp3 A30 PERn3 B29 GND B30 RSVD A31 GND A32 RSVD B31 PRSNT2 A B32 GND A33 RSVD A34 GND B33 PETp4 B34 PETn4 A35 PERp4 A36 PERn4 B35 GND B36 GND A37 GND A38 GND B37 PETp5 B38 PETn5 A39...

Страница 27: ...67 GND A68 PERp12 B67 PETn12 B68 GND A69 PERn12 A70 GND B69 GND B70 PETp13 A71 GND A72 PERp13 B71 PETn13 B72 GND A73 PERn13 A74 GND B73 GND B74 PETp14 A75 GND A76 PERp14 B75 PETn14 B76 GND A77 PERn14 A78 GND B77 GND B78 PETp15 A79 GND A80 PERp15 B79 PETn15 B80 GND A81 PERn15 A82 GND B81 PRSNT2 C B82 RSVD PCIex4 Slot Marked as PCIE2 on board Pin Signal Name Pin Signal Name Pin Signal Name Pin Signa...

Страница 28: ...28 PETn3 A29 PERp3 A30 PERn3 B29 GND B30 RSVD A31 GND A32 RSVD B31 PRSNT2 A B32 GND Install the CPU Please install the CPU as follows refer to the figure below Align the notches in the CPU with the notches on the socket and put the CPU into the socket When the CPU is fully seated in the socket close the upper cover on CPU socket and then lock the CPU via hook Install the CPU Fan Please install the...

Страница 29: ... the four screws Finally connect the fan power cable to the fan socket on the CPU card Note It is recommended to use cooling fan authenticated by Intel before installing the fan smear the heat sink compound on the surface between CPU and the fan cooling fin to improve the heat dissipation performance always check whether the fan is operating normally to ensure the heat dissipation within the chass...

Страница 30: ...the performance of system make system unstable and even unable to work normally BIOS Parameter Setup Prompt message for BIOS setting may appear once the system is powered on and the computer booted At that time invalid at other time press the key specified in the prompt message usually Del to enter into BIOS setting If the BIOS setting in CMOS is destroyed system will ask you to enter BIOS setting...

Страница 31: ... Select Item Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit V02 57 c Copyright 1985 2004 American Megatrends Inc Main System Time Choose this option and set the current time by which is displayed in the format of hour minute second Reasonable range for each option is Hour 00 23 Minute 00 59 Second 00 59 System Date Choose this option and set the current date by which is d...

Страница 32: ... to Sub Screen Tab Select Field F1 General Help F10 Save and Exit ESC Exit V02 57 c Copyright 1985 2004 American Megatrends Inc CPU Configuration BIOS SETUP UTILITY Configure advanced CPU settings Module Version 3F 1C Manufacturer Intel Genuine Intel R CPU 2 40GHz Frequency 2 40GHz FSB Speed 800MHz Cache L1 32 KB Cache L2 512 KB Core Multi Processing Enabled Select Screen Select Item Change Field ...

Страница 33: ...t ESC Exit V02 57 c Copyright 1985 2004 American Megatrends Inc ATA IDE Configuration Mode selection for SATA 1 controller there are three options Disabled Compatible and Enhanced Configure SATA as SATA controller type selection there are three options for this item IDE RAID and AHCI Only when ATA IDE Configuration is under Enhanced mode are RAID and AHCI supported Both RAID and AHCI functions req...

Страница 34: ...r IO Configuration BIOS SETUP UTILITY Configure Super IO Chipset Floppy A 1 44MB 31 2 OnBoard Floppy Controller Enabled Serial Port1 Address 3F8 IRQ4 Serial Port2 Address 2F8 IRQ3 Uart IRQ Attribute Level Active Low Serial Port3 Address 200 Serial Port3 IRQ 10 Serial Port4 Address 208 Serial Port4 IRQ 10 Serial Port5 Address 210 Serial Port5 IRQ 10 Serial Port6 Address 210 Serial Port6 IRQ 10 Para...

Страница 35: ...motherboard The options are Disabled 3F8H IRQ4 3E8 IRQ4 2E8 IRQ3 and 2F8H IRQ3 Uart IRQ Attribute Level Active Low IRQ mode option under Windows system Edge Active High IRQ mode option under Linux system Serial Port 3 6 Address Set the addresses of COM3 6 on motherboard Serial Port 3 6 IRQ Set the IRQs of COM3 6 on motherboard Parallel Port Address Set the address of the parallel port on motherboa...

Страница 36: ...ce Select Screen Select Item Change Field Tab Select Field F1 General Help F10 Save and Exit ESC Exit V02 57 c Copyright 1985 2004 American Megatrends Inc System Temperature Current system temperature it is monitored by thermal resistor on motherboard CPU Temperature Current CPU temperature it is monitored by temperature sensor on motherboard CPUFAN1 Display the current CPU fan speed SYSFAN1 Displ...

Страница 37: ...ontrollers are supported One controller usually has two USB connectors USB 2 0 Controller This option is used to set whether to support USB 2 0 controller Legacy USB Support This option is used to support legacy USB devices keyboard mouse and storage device etc when this option is set to Enabled the USB device could be used even if under OS that doesn t support USB such as DOS Power Management Con...

Страница 38: ... the specified time is expired it will wake the system from power saving mode even from power off mode This function shall be supported by ATX power Clock Generator Configuration BIOS SETUP UTILITY Configure Clock Generator Spread Spectrum Control Enabled Auto PCI Clock Enabled Select Screen Select Item Change Field F1 General Help F10 Save and Exit ESC Exit V02 57 c Copyright 1985 2004 American M...

Страница 39: ...ESC Exit V02 57 c Copyright 1985 2004 American Megatrends Inc DRAM Frequency Configure the frequency for DRAM it is recommended to use automatic modification instead of manual modification otherwise it will not be able to power on because it is not supported by DRAM Configure DRAM Timing by SPD BIOS configures the time sequence of the SDRAM according to the contents of the SPD chip Most of the mem...

Страница 40: ... use including 18 bit 24 bit single channel and dual channel etc Only when the LVDS graphics card supplied by EVOC is used and the Boot Display Device option is set to LVDS is this option available PCIPnP BIOS SETUP UTILITY Advanced PCI PnP Settings WARNING Setting wrong values in below sections may cause system to malfunction IRQ3 Available IRQ4 Available IRQ5 Available IRQ7 Available IRQ9 Availa...

Страница 41: ...ntent of OEM LOGO Wait For F1 If Error Configure whether to prompt pressing F1 during system error 1st 4th Boot Device Configure the priority of the boot sequence for devices when the system boots Security BIOS SETUP UTILITY Security Settings Supervisor Password Not Installed User Password Not Installed Change Supervisor Password Change User Password Install or Change the password Select Screen Se...

Страница 42: ... again to exit Discard Changes and Exit If you do not want to save the change into CMOS storage please choose this option and press Enter press Enter again to exit Discard Changes If error occurs in your change and the changes need to be neglected please choose this option and press Enter in order to enter corresponding options again and reset it Load Optimal Defaults This menu is used to load def...

Страница 43: ... motherboards above P4 level support APIC and provide more than 16 interrupt sources like IRQ16 IRQ23 while some others can have up to 28 interrupt sources such as motherboard supporting PCI X However relevant OS are required to enable that function and currently only the OS above Windows 2000 could support that function IO Port Address There is 64K for the system I O address space Each peripheral...

Страница 44: ... speaker 062h 063h Carrier Resource 064h Standard 101 102 Key or Microsoft Natural PS 2 Keyboard 065h 06Fh Carrier Resource 070h 071h Real Time Clock NMI 072h 07Fh Carrier Resource 080h Carrier Resource 081h 083h DMA Controller 2 084h 086h Carrier Resource 087h DMA Controller 3 088h Carrier Resource 089h 08Bh DMA Controller 4 08Ch 08Eh Carrier Resource 08Fh DMA Controller 5 090h 09Fh Carrier Resou...

Страница 45: ...ve IDE dual FIFO 378h 37Fh LPT1 3B0h 3BBh Intel R G41 Express Chipset Family 3C0h 3DFh Intel R G41 Express Chipset Family 3F0h 3F5h Standard Floppy Disk Controller 3F6h Master IDE dual FIFO 3F7h Standard Floppy Disk Controller 3F8h 3FFh COM1 400h 41Fh Intel R N10 ICH7 Family SMBus Controller 27DA 480h 4BFh Carrier Resource 4D0h 4D1h Carrier Resource 800h 87Fh Carrier Resource A00h A0Fh Carrier Res...

Страница 46: ...one interrupt which is assigned by BIOS or OS Interrupt assignment of some devices of X86 platform is shown in the table below but it does not show the interrupt source occupied by the PCI devices Level Function IRQ0 System Timer IRQ1 Standard 101 102 Key or Microsoft Keyboard IRQ2 Reserved IRQ3 COM 2 IRQ4 COM 1 IRQ5 Reserved IRQ6 Standard Floppy Disk Controller IRQ7 Parallel Port 1 IRQ8 System CM...

Страница 47: ...Chapter 4 Install the Drivers 42 EC0 1814 B Chapter 4 Install the Drivers Regarding the driver program of this product please refer to the enclosed CD ...

Страница 48: ... of BIOS Setup interface into Reserved before using The following describes WDT program in C language The steps to program WDT are listed as follows Enter WDT programming mode Set WDT operating mode enable WDT disable WDT 1 Enter WDT Programming Mode Description the function PreInitWDT is used to initialize the registers relevant to WDT please invoke the function before configuring and using WDT I...

Страница 49: ...T to interrupt mode Please replace the constant IRQ_NO with the interrupt number need to be used The available range of the interrupt number has been listed in the beginning of this chapter Wtime 0 Configure WDT to time by minute 1 Configure WDT to time by second Timeout 0 disable WDT TIME_OUT_VALUE Enable WDT Please replace the constant TIME_OUT_VALUE with the unit number of timeout value 0x01 0x...

Страница 50: ...vides 8 channel programmable digital IO pins four for input while the other four for output The following provides digital I O program in C language please follow the steps below to implement digital I O programming The GPIO1 8 described in the Users Manual are corresponding with GPIO30 31 34 35 36 37 20 and 21 of the Super IO take GPIO1 2 3 and 4 setting to input it is read only for input and GPI...

Страница 51: ...ialized to GPIO function 2 Input output program outportb INDEX_PORT 0xE3 Temp_val inportb DATA_PORT 0xfc outportb DATA_PORT Temp_val GPIO20 and 21 i e GPIO7 and 8 are set to output outportb INDEX_PORT 0xE4 Temp_val inportb DATA_PORT 0xfc outportb DATA_PORT Temp_val GPIO7 and 8 are set to low level outportb INDEX_PORT 0xF0 Temp_val inportb DATA_PORT 0x33 0x3f outportb DATA_PORT 0x3F GPIO30 31 34 an...

Страница 52: ...SB1 1 port 3 When connecting with a USB flash drive the system prompts that a high speed device has been connected with a low speed connector Solution enable the USB high speed transmission mode on the motherboard Different motherboards may have different settings Change the FULLSPEED option to HISPEED in USB device option Analysis it could result from improper operation when inserting or removing...

Страница 53: ... ATX find out users requirement for the PCI card voltage 6 No PCI card can be detected after entering the system Solution if the PCI card functions abnormally replace it with a new one if it functions normally when re inserted or inserted in another PCI slot then there is something wrong between the PCI card and the slot If AT power is adopted and the PCI card requires 3 3V voltage then the AT pow...

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