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ICPMB-8650

SOCKET 478 PENTIUM 4

Motherboard with

SATA & Ethernet & USB 2.0

Manual Rev: 1.1

Summary of Contents for ICPMB-8650

Page 2: ...ights are reserved No part of this manual may be reproduced by any mechanical electronic or other means in any form without prior written permission of the manufacturer Trademarks ICP MB 8650 is registered trademarks of ICP Electronics Inc IBM PC is a registered trademark of International Business Machines Corporation INTEL is a registered trademark of INTEL Corporation Award is registered tradema...

Page 3: ...nnector 13 3 4 Serial Port 14 3 5 Compact Flash Storage Card Socket 15 3 6 IrDA Infrared Interface Port 16 3 7 USB Port Connector 16 3 8 Keyboard Mouse Connector 17 3 9 Fan Connector 18 3 10 Serial ATA Connector 18 3 11 VGA Connector 19 3 12 LAN Connector 19 3 13 Audio Connector 20 3 14 ATX 12V Power connector 21 3 15 iButton connector 22 3 16 Digital I O connector 22 3 17 External Switches and In...

Page 4: ...P PCI Configuration Setup 45 4 11 PC Health Status 46 4 12 Frequency Voltage Control 47 4 13 Load Fail Safe Defaults 48 4 14 Load Optimized Defaults 48 4 15 Set Password 49 4 16 Exit Selecting 50 Appendix A Watchdog Timer 51 Appendix B Address Mapping 53 Appendix C How to Upgrade a New BIOS 55 Appendix D Install memory modules 58 ...

Page 5: ... s not support any 3 3V AGP card The integrated graphics controller provides 3D 2D and display capabilities ICPMB 8650 is supports one or two 64 bit wide DDR data channels Available bandwidth up to 2 7GB s for single channel mode and 5 4GB s in dual channel mode For the application that needs high speed serial transmission the ICPMB 8650 provides USB2 0 for your choice The high speed USB2 0 host c...

Page 6: ...ications its best advantage so there is no need to do any changes for users current accessories Floppy disk drive interface Supports up to two floppy disk drives 5 25 360KB and 1 2MB and or 3 5 720KB 1 44MB and 2 88MB Serial ports Six RS232 ports with 16C550 UART or compatible with 16 byte FIFO buffer Support up to 115 2Kbps Ports can be individually configured to COM1 2 3 4 5 6 or disabled Bi dir...

Page 7: ...net Keyboard and PS 2 mouse connector A connector is located on the mounting bracket for easy connection to a keyboard or PS 2 mouse Audio AC 97 Audio CODEC Compact flash It can be used with a passive adapter True IDE Mode in a Type I II CF Socket Power consumption PENTIUM4 3 0GHz 2GB DDR400 DDR SDRAM 5V 4 7A 12V 6 1A 3 3V 0 7A 12V 0 2A 5VSB 0 7A Recommended 350 watt power supply or higher Operati...

Page 8: ...oard Computer X1 RS 232 Cable with bracket X3 FDD cable X1 PATA IDE cable X2 SATA IDE cable X2 SATA Power cable X1 Driver CD X1 If any of these items are missing or damaged contact the dealer from whom you purchased this product Save the shipping materials and carton in case you want to ship or store the product in the future ...

Page 9: ...50 First a layout diagram of the ICPMB 8650 is shown followed by unpacking information that should be carefully followed The jumpers and switch settings for the ICPMB 8650 configuration such as CPU type selection system clock setting and watchdog timer are also listed ...

Page 10: ...6 2 1 ICPMB 8650 s Layout ...

Page 11: ...7 2 2 ICPMB 8650 s Dimensions Unit mm ...

Page 12: ... remove any static charge before touching your ICPMB 8650 You can do it by using a grounded wrist strap at all times or by frequently touching any conducting materials that is connected to the ground ü Handle your ICPMB 8650 by its edges Don t touch IC chips leads or circuitry if not necessary ü Do not plug any connector or jumper while the power is on Note All shaded rows in tables of this manual...

Page 13: ...MOS Setup JP1 Description 1 2 default Keep CMOS Setup Normal Operation Short 2 3 Clear CMOS Setup 2 5 COM3 RS232 RS422 485 Selection JP2 COM3 RS232 RS422 485 Selection JP2 Description 1 3 Short default RS232 3 5 Short 2 4 Short RS422 3 5 Short 4 6 Short RS485 Note When RS422 485 is in use the COM3 s RS232 port will be disabled 2 6 Compact Flash Master Slave Function Setting JP3 Compact Flash Maste...

Page 14: ...nector USB2 USB dual port connector USB3 USB dual port connector KB MS1 Keyboard Mouse connector FAN1 FAN2 FAN connectors SATA1 SATA2 Serial ATA connectors VGA1 VGA connector CN1 Audio connector CN2 USB dual port LAN RJ45 connectors CN3 Audio AUX in connector CN4 Audio CD in connector CN5 ATX 12V Power connector CN6 5 1 Channel Audio connector CN7 Front Panel Audio connector CN8 S PDIF connector C...

Page 15: ...ION 1 RESET 2 GROUND 3 DATA 7 4 DATA 8 5 DATA 6 6 DATA 9 7 DATA 5 8 DATA 10 9 DATA 4 10 DATA 11 11 DATA 3 12 DATA 12 13 DATA 2 14 DATA 13 15 DATA 1 16 DATA 14 17 DATA 0 18 DATA 15 19 GROUND 20 N C 21 DRQ 22 GROUND 23 IOW 24 GROUND 25 IOR 26 GROUND 27 CHRDY 28 REV PULL LOW 29 DACK 30 GROUND DEFAULT 31 INTERRUPT 32 N C 33 SA1 34 N C 35 SA0 36 SA2 37 HDC CS0 38 HDC CS1 39 HDD ACTIVE 40 GROUND ...

Page 16: ... PIN DESCRIPTION PIN DESCRIPTION 1 GROUND 2 RWC0 3 GROUND 4 NC 5 GROUND 6 RWC1 7 GROUND 8 INDEX 9 GROUND 10 MO A 11 GROUND 12 DS B 13 GROUND 14 DS A 15 GROUND 16 MO B 17 GROUND 18 DIR 19 GROUND 20 STEP 21 GROUND 22 WD 23 GROUND 24 WGATE 25 GROUND 26 TRK0 27 GROUND 28 WP 29 GROUND 30 RDATA 31 GROUND 32 HEAD 33 GROUND 34 DSKCHG ...

Page 17: ...N1 Parallel Port Connector PIN DESCRIPTION PIN DESCRIPTION 1 STROBE 2 DATA 0 3 DATA 1 4 DATA 2 5 DATA 3 6 DATA 4 7 DATA 5 8 DATA 6 9 DATA 7 10 ACKNOWLEDGE 11 BUSY 12 PAPER EMPTY 13 PRINTER SELECT 14 AUTO FORM FEED 15 ERROR 16 INITIALIZE 17 PRINTER SELECT LN 18 GROUND 19 GROUND 20 GROUND 21 GROUND 22 GROUND 23 GROUND 24 GROUND 25 GROUND ...

Page 18: ...6 byte Read Receive FIFO serial ports COM1 D SUB Serial Port Connector PIN DESCRIPTION PIN DESCRIPTION 1 DCD 6 DSR 2 RXD 7 RTS 3 TXD 8 CTS 4 DTR 9 RI 5 GROUND COM2 3 4 5 6 Serial Port Connector PIN DESCRIPTION PIN DESCRIPTION 1 DCD 2 DSR 3 RXD 4 RTS 5 TXD 6 CTS 7 DTR 8 RI 9 GROUND 10 GROUND ...

Page 19: ...ment PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GROUND 26 PULL DOWN 2 D3 27 D11 3 D4 28 D12 4 D5 29 D13 5 D6 30 D14 6 D7 31 D15 7 CS1 32 CS3 8 N C 33 N C 9 GROUND 34 IOR 10 N C 35 IOW 11 N C 36 VCC 12 N C 37 IRQ15 13 VCC 38 VCC 14 N C 39 MASTER SLAVE 15 N C 40 N C 16 N C 41 RESET 17 N C 42 IORDY 18 A2 43 N C 19 A1 44 VCC 20 A0 45 ACTIVE 21 D0 46 PDIAG 22 D1 47 D8 23 D2 48 D9 24 N C 49 D10 25 PULL DOW...

Page 20: ...ION 1 VCC 2 NC 3 IR RX 4 Ground 5 IR TX 6 CIRRX 3 7 USB Port Connector The ICPMB 8650 is equipped with Eight USB Version 2 0 ports for the future new I O bus expansion USB1 2 ports USB Connector PIN DESCRIPTION PIN DESCRIPTION 1 VCC 5 VCC 2 DATA0 6 DATA1 3 DATA0 7 DATA1 4 GROUND 8 GROUND USB2 2 ports USB Connector PIN DESCRIPTION PIN DESCRIPTION 1 VCC 2 GROUND 3 DATA2 4 DATA3 5 DATA2 6 DATA3 7 GRO...

Page 21: ...onnector PIN DESCRIPTION PIN DESCRIPTION 1 VCC 5 VCC 2 DATA6 6 DATA7 3 DATA6 7 DATA7 4 GROUND 8 GROUND 3 8 Keyboard Mouse Connector The ICPMB 8650 has a keyboard mouse connector KB MS1 Keyboard Mouse Connector PIN DESCRIPTION PIN DESCRIPTION 1 KB DATA 7 MS DATA 2 NC 8 NC 3 GROUND 9 GROUND 4 KB VCC 10 MS VCC 5 KB CLOCK 11 MS CLOCK 6 NC 12 NC ...

Page 22: ...an s rotation signal to the system BIOS in order to recognize the fan speed Please note that only specific fans offer a rotation signal FAN1 FAN2 CPU Fan Connector PIN DESCRIPTION 1 Ground 2 12V 3 Rotation Signal 3 10 Serial ATA Connector The ICPMB 8650 provide 2 Serial ATA ports to connect with Serial ATA devices SATA1 SATA2 Serial ATA Connector PIN NO DESCRIPTION PIN NO DESCRIPTION 1 S_TXP 3 S_R...

Page 23: ...12 DDC DAT 13 HSYNC 14 VSYNC 15 DDCCLK 3 12 LAN Connector The ICPMB 8650 is equipped with Ethernet Controllers 10 100Mbps which are connected to the LAN via an RJ45 LAN connector The pin assignments are as follows CN2 RJ45 Connector 10 100 1000 PIN DESCRIPTION PIN DESCRIPTION L1 TX0 L7 TX3 L2 TX0 L8 TX3 L3 TX1 L9 Active L4 TX2 L10 Active L5 TX2 L11 LINK L6 TX1 L12 LINK ...

Page 24: ...or Line in Line out MIC in CN3 Audio AUX In connector PIN DESCRIPTION 1 AUX LEFT 2 GROUND 3 GROUND 4 AUX RIGHT CN4 Audio CD In connector PIN DESCRIPTION 1 CD SIGNAL LEFT 2 GROUND 3 GROUND 4 CD SIGNAL RIGHT CN6 5 1 Channel Audio connector PIN DESCRIPTION PIN DESCRIPTION 1 SUR OUT L 2 CEN OUT 3 GROUND 4 GROUND 5 SUR OUT R 6 LFE OUT 7 GROUND ...

Page 25: ... 2 GROUND 3 MIC BIAS 4 5V 5 LINE OUT R 6 LINE OUT R Return 7 NC 9 LINE OUT L 10 LINE OUT L Return CN8 S PDIF connector PIN DESCRIPTION 1 5V 3 S PDIF OUT 4 GROUND 5 S PDIF IN 3 14 ATX 12V Power connector CN5 ATX 12V Power connector PIN DESCRIPTION 1 GROUND 2 GROUND 3 12V 4 12V ...

Page 26: ...IPTION 1 iButton input output 2 GROUND 3 16 Digital I O connector CN10 Digital I O connector PIN DESCRIPTION PIN DESCRIPTION 1 DGPI0 2 DGPO0 3 DGPI1 4 DGPO1 5 DGPI2 6 DGPO2 7 DGPI3 8 DGPO3 9 DGPI4 10 DGPO4 11 DGPI5 12 DGPO5 13 DGPI6 14 DGPO6 15 DGPI7 16 DGPO7 17 GROUND 18 VCC ...

Page 27: ... for monitoring and controlling your CPU board All functions are in the CN11connector CN11 Pin Assignment and Functions FUNCTION PIN DESCRIPTION 2 BUZZER 4 NC 6 NC BUZZER 8 VCC 10 RESET RESET 12 GROUND 9 IDE_LED HDD LED 11 IDE_LED 1 LED POWER LED 3 LED GROUND 5 VCC POWER BUTTON 7 POWER BUTTON ...

Page 28: ...TION 1 TX 2 TX 3 RX 4 RX 3 19 ATX Power connector ATX1 ATX Power connector PIN DESCRIPTION PIN DESCRIPTION 1 VCC3 11 VCC3 2 VCC3 12 12V 3 GROUND 13 GROUND 4 5V 14 PS ON 5 GROUND 15 GROUND 6 5V 16 GROUND 7 GROUND 17 GROUND 8 POWER GOOD 18 NC 9 5VSB 19 5V 10 12V 20 5V ...

Page 29: ...two ways 1 By pressing Del immediately after switching the system on or 2 By pressing the Del key when the following message appears at the bottom of the screen during POST Power On Self Test Press DEL to enter SETUP If the message disappears before you respond and you still wish to enter Setup restart the system to try again by turning it OFF then ON or pressing the RESET button on the system cas...

Page 30: ... Quit without saving changes Submenus Exit Current page to the next higher level menu Move Enter Move to the item you desired PgUp key Increase the numeric value or make changes PgDn key Decrease the numeric value or make changes key Increase the numeric value or make changes key Decrease the numeric value or make changes Esc key Main Menu Quit and save no changes into CMOS Status Page Setup Menu ...

Page 31: ...nter the sub menu Note that a brief description of each highlighted selection appears at the bottom of the screen 4 4 1 Setup Items The main menu includes the following main setup categories Recall that some systems may not include all entries Standard CMOS Features Use this menu for basic system configuration See Section 4 5 for the details Advanced BIOS Features Use this menu to set the Advanced...

Page 32: ...pports PnP PCI See section 4 10 for the details PC Health Status Use this menu to monitor your hardware See section 4 11 for details Frequency Voltage Control Use this menu to configure your settings for frequency voltage control See section 4 12 for the details Load Fail Safe Defaults Use this menu to load the BIOS default values for the minimal stable performance for your system to operate See s...

Page 33: ... the details Exit Without Save Abandon all CMOS value changes and exit setup See section 4 15 for the details 4 5 Standard CMOS Setup The items in Standard CMOS Setup Menu are divided into 10 categories Each category includes no one or more than one setup items Use the arrow keys to highlight the item and then use the PgUp or PgDn keys to select the value you want in each item Item Options Descrip...

Page 34: ... None 360K 5 25 in 1 2M 5 25 in 720K 3 5 in 1 44M 3 5 in 2 88M 3 5 in Select the type of floppy disk drive installed in your system Video EGA VGA CGA 40 CGA 80 MONO Select the default video device Halt On All Errors No Errors All but Keyboard All but Diskette All but Disk Key Select the situation in which you want the BIOS to stop the POST process and notify you Base Memory N A Displays the amount...

Page 35: ...of a formatted disk given by a disk checking program Access Mode CHS LBA Large Auto Choose the access mode for this hard disk 4 6 Advanced BIOS Features This section allows you to configure your system for basic operation You have the opportunity to select the system s default speed boot up sequence keyboard operation shadowing and security Virus Warning Allows you to choose the VIRUS Warning feat...

Page 36: ...Hard Disk Boot Priority This setting is to select hard disk boot priority CPU L1 L2 Cache These two categories speed up memory access However it depends on CPU chipset design Enabled Enable cache Disabled Disable cache Hyper Threading Technology This setting is to enable or disable hyper threading CPU support Quick Power On Self Test This category speeds up Power On Self Test POST after you power ...

Page 37: ...signments The choice Enabled Disabled Boot Up Floppy Seek Seeks disk drives during boot up Disabling speeds boot up The choice Enabled Disabled Boot Up NumLock Status Select power on state for NumLock The choice On Off Gate A20 Option Select if chipset or keyboard controller should control GateA20 Normal A pin in the keyboard controller controls GateA20 Fast Lets chipset control GateA20 Typematic ...

Page 38: ...ot and access to Setup will be denied if the correct password is not entered at the prompt Setup The system will boot but access to Setup will be denied if the correct password is not entered at the prompt Note To disable security select PASSWORD SETTING at Main Menu and then you will be asked to enter password Do not type anything and just press Enter it will disable security Once the security is...

Page 39: ... been chosen because they provide the best operating conditions for your system DRAM Timing Selectable The first chipset settings deal with CPU access to dynamic random access memory DRAM The default timings have been carefully chosen and should only be altered if data is being lost Such a scenario might well occur if your system had mixed speed DRAM chips installed so that greater delays may be r...

Page 40: ...mance and Slow gives more stable performance This field applies only when synchronous DRAM is installed in the system The Choice 2 3 DRAM Frequency For This field displays the capability of the memory modules that you are using either H W TRAP The choice Auto DDR266 DDR333 DDR400 System BIOS Cacheable Selecting Enabled allows caching of the system BIOS ROM at F0000h FFFFFh resulting in better syst...

Page 41: ...e user information of peripherals that need to use this area of system memory usually discusses their memory requirements The Choice Enabled Disabled AGP Aperture Size MB Select the on chip video window size for VGA drive use The Choice 4MB 8MB 16MB 32MB 64MB 128MB 256MB On chip VGA Enabled Disabled On chip VGA 4 8 Integrated Peripherals ...

Page 42: ...38 ...

Page 43: ...t the onboard IDE interface supports Modes 0 through 4 provide successively increased performance In Auto mode the system automatically determines the best mode for each device The choice Auto Mode 0 Mode 1 Mode 2 Mode 3 Mode 4 IDE Primary Secondary Master Slave UDMA Ultra DMA 33 66 implementation is possible only if your IDE hard drive supports it and the operating environment includes a DMA driv...

Page 44: ...roller and you have USB peripherals The Choice Enabled Disabled USB Keyboard Support Select Enabled if your system contains a Universal Serial Bus USB controller and you have a USB keyboard The Choice Enabled Disabled AC97 Audio This item allows you to decide to enable disable the ALC202A chipset The choice Auto Disabled Onboard FDC Controller Select Enabled if your system has a floppy disk contro...

Page 45: ...ed Auto UART Mode Select Select a serial port 2 operation mode The choice Normal IrDA ASKIR SCR Onboard Parallel Port Select an address and corresponding interrupt for the parallel ports The choice 378 IRQ7 278 IRQ5 3BC IRQ7 Disabled Parallel Port Mode Select a parallel operation mode The choice SPP EPP ECP ECP EPP Watchdog Timer Unit Select Select the WatchDog Timer unit The choice Second Minute ...

Page 46: ...effectively save energy while operating in a manner consistent with your own style of computer use ACPI Function This feature is switch of ACPI function Configuration options Enable Disable ACPI Suspend Type This feature is switch of POS S1 or STR S3 function Configuration options S1 POS S3 STR S1 S3 ...

Page 47: ...ividually When not disabled each of the ranges are from 1 min to 1 hr except for HDD Power Down which ranges from 1 min to 15 min and disable Video Off Method This determines the manner in which the monitor is blanked V H SYNC Blank This selection will cause the system to turn off the vertical and horizontal synchronization ports and write blanks to the video buffer Blank Screen This option only w...

Page 48: ...e all other devices remain active The choice 1Min 2Min 3Min 4Min 5Min 6Min 7Min 8Min 9Min 10Min Disabled Soft off By PWR BTTN Instant off allows the system to switch off immediately the power button is pressed Otherwise it will only so after you press the power switch for more 4 seconds Wakeup By PCI Card When this option is set enabled system will wakeup then wakeup event from PCI Card Resume By ...

Page 49: ...ed that only experienced users should make any changes to the default settings Reset Configuration Data Normally you leave this field Disabled Select Enabled to reset Extended System Configuration Data ESCD when you exit Setup if you have installed a new add on and the system reconfiguration has caused such a serious conflict that the operating system can not boot The choice Enabled Disabled Resou...

Page 50: ...e sub menu that follows this field a sub menu is preceded by a Ø The choice Auto ESCD Manual PCI VGA Palette Snoop Leave this field at Disabled Choices are Enabled Disabled 4 11 PC Health Status Note normal CPU Fan RPM is over than 5000 RPM If your CPU Fan RPM is less than that figure something is wrong and the CPU will be in overheat condition Make sure that the connection at Fan1 Fan2 is correct...

Page 51: ...ol Auto Detect DIMM PCI Clk This item allows you to enable disable auto detect DIMM PCI Clock The choice Enabled Disabled Spread Spectrum This item allows you to enable disable the spread spectrum modulate The choice Enabled Disabled ...

Page 52: ... Pressing Y loads the BIOS default values for the most stable minimal performance system operations 4 14 Load Optimized Defaults When you press Enter on this item you get a confirmation dialog box with a message similar to Load Optimized Defaults Y N N Pressing Y loads the default values that are factory settings for optimal performance system operations ...

Page 53: ... password is disabled the system will boot and you can enter Setup freely PASSWORD DISABLED When a password has been enabled you will be prompted to enter it every time you try to enter Setup This prevents an unauthorized person from changing any part of your system configuration Additionally when a password is enabled you can also require the BIOS to request a password every time your system is r...

Page 54: ...system off The next time you boot your computer the BIOS configures your system according to the Setup selections stored in CMOS After saving the values the system is restarted again Exit Without Saving Pressing Enter on this item asks for confirmation Quit without saving Y N Y This allows you to exit Setup without storing in CMOS any change The previous selections remain in effect This exits the ...

Page 55: ...it second or minute is dependent on the item Watchdog Timer unit select in CMOS setup You have to call sub function 2 to set the time out period of Watchdog Timer first If the time out value is not zero the Watchdog Timer will start counting down While the timer value reaches zero the system will reset To ensure that this reset condition does not occur the Watchdog Timer must be periodically refre...

Page 56: ...MOV AX 6F02H setting the time out value MOV BL 30 time out value is 48 seconds INT 15H ADD YOUR APPLICATION PROGRAM HERE CMP EXIT_AP 1 is your application over JNE W_LOOP No restart your application MOV AX 6F02H disable Watchdog Timer MOV BL 0 INT 15H EXIT ...

Page 57: ...rupt Controller 0C0 0DF DMA Controller 0F0 0FF Numeric data processor 1F0 1F7 Primary IDE Channal 2E8 2EF Serial Port 4 COM4 2F8 2FF Serial Port 2 COM2 378 37F Parallel Printer Port 1 LPT1 3B0 3BB Intel R 82865 Graphics Controller 3C0 3DF Intel R 82865 Graphics Controller 3E8 3EF Serial Port 3 COM3 3F6 3F6 Primary IDE Channal 3F7 3F7 Standard floopy disk controller 3F8 3FF Serial Port 1 COM1 4E8 4...

Page 58: ...IRQ8 RTC clock IRQ1 Keyboard IRQ9 AUDIO SMBus Cntrlr IRQ2 Available IRQ10 COM4 COM6 IRQ3 COM2 IRQ11 COM3 COM5 IRQ4 COM1 IRQ12 PS 2 mouse IRQ5 VGA SMBus Cntrlr IRQ13 FPU IRQ6 FDC IRQ14 Primary IDE IRQ7 Available IRQ15 Secondary IDE DMA Channel Assignments Channel Function 0 Available 1 Available 2 Floppy disk 8 bit transfer 3 Available 4 Cascade for DMA controller 1 5 Available 6 Available 7 Availa...

Page 59: ... A type format A s That will format the floppy and transfer the needed system files to it NOTES A This procedure will erase any prior data on that floppy so please Proceed accordingly B Typically four files will be transferred only COMMAND COM being visible when running a simple directory listing C Please leave the diskette UN write protected for the balance of this procedure 2 Download the BIOS u...

Page 60: ...s Enter N for no and skip to step 9 7 To save the old BIOS hit Y for yes 8 Enter a name for the OLD BIOS file and hit enter NOTE PLEASE be sure you do NOT save the old BIOS file to the same file name as the new BIOS if you use the same BIOS name the old file will write over the new BIOS file WITHOUT a warning prompt A simple file name for saving the old BIOS to is OLDBIOS BIN 9 Your second option ...

Page 61: ...dure noted above boot the system with that diskette in the floppy drive If you do not have floppy made during the upgrade procedure noted above you will need to repeat steps 1 though 3 above for the version of the BIOS you wish to recover to 2 Complete steps 4 5 6B 9 10 and 11 above substituting the name of the BIOS you wish to recover for the upgrade BIOS at step 5 Install screen ...

Page 62: ... Channel Technology the bandwidth of Memory Bus will add double up to 6 4GB s ICPMB 8650 includes 4 DIMM sockets and each Channel has two DIMM socket If you want to operate the Dual Channel Technology please note the following explanations due to the limitation of Intel chipset specifications 1 Only one DDR memory module is installed The Dual Channel Technology can t operate when only one DDR memo...

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