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Intel D946GZTS - Desktop Board Motherboard, Product Manual

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Intel D946GZTS - Desktop Board Motherboard Product Manual Download Page 58

Intel Desktop Board D946GZTS Product Guide 

58 

 

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Summary of Contents for D946GZTS - Desktop Board Motherboard

Page 1: ...Intel Desktop Board D946GZTS Product Guide Order Number D55583 002 ...

Page 2: ... with FCC standards for home or office use Canadian Department of Communications Compliance Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Le présent appareil numerique német pas de bruits radioélectriques dépassant les limites applicables...

Page 3: ...ments such as medical industrial alarm systems test equipment etc may not be supported without further evaluation by Intel Document Organization The chapters in this Product Guide are arranged as follows 1 Desktop Board Features a summary of product features 2 Installing and Replacing Desktop Board Components instructions on how to install the desktop board and other hardware components 3 Updating...

Page 4: ...4 bytes GHz Gigahertz one billion hertz KB Kilobyte 1024 bytes MB Megabyte 1 048 576 bytes Mbit Megabit 1 048 576 bits MHz Megahertz one million hertz Box Contents Intel Desktop Board D946GZTS I O shield One diskette drive cable One ATA 66 100 cable Two locking Serial ATA cables Intel Express Installer CD ROM Quick Reference Guide Configuration and battery caution statement label ...

Page 5: ...peed Control 18 Chassis Intrusion Detection 19 Power Management Features 19 ACPI 19 Power Connectors 19 Fan Headers 20 LAN Wake Capabilities 20 Instantly Available PC Technology 20 5 V Standby Power Indicator LED 21 Wake from USB 22 Wake from PS 2 Keyboard Mouse 22 PME Signal Wake up Support 22 WAKE Signal Wake up Support 22 Speaker 22 Battery 22 Real Time Clock 22 2 Installing and Replacing Deskt...

Page 6: ...les 49 Connecting Power Cables 50 Other Connectors and Headers 51 Setting the BIOS Configuration Jumper 52 Clearing Passwords 53 Back Panel Connectors 54 3 Updating the BIOS Updating the BIOS with the Intel Express BIOS Update Utility 61 Updating the BIOS with the ISO Image BIOS Update File or the Iflash Memory Update Utility 62 Obtaining the BIOS Update File 62 Updating the BIOS with the ISO Imag...

Page 7: ...ing a PCI Express x16 Card 40 21 Connecting the IDE Cable 42 22 Connecting the Serial ATA Cable 43 23 Internal Headers 44 24 Back Panel Audio Connectors 48 25 Location of Chassis Fan Headers 49 26 Connecting Power Supply Cables 50 27 Location of Other Connectors and Headers 51 28 Location of the BIOS Configuration Jumper Block 52 29 Back Panel Connectors 54 30 Removing the Battery 59 Tables 1 Feat...

Page 8: ...Intel Desktop Board D946GZTS Product Guide viii ...

Page 9: ...troller Hub GMCH Intel 82801GB I O Controller Hub ICH7 Graphics Intel 946GZ Express Chipset with Intel Graphics Media Accelerator 3000 Intel GMA 3000 PCI Express graphics card support via a PCI Express x16 connector Audio 6 channel 5 1 onboard subsystem featuring Intel High Definition Audio interface SigmaTel STAC9227 audio codec HD Audio Link header Expansion Capabilities One PCI Express x1 conne...

Page 10: ...rs Three fan sensing inputs used to monitor fan activity Remote diode temperature sensing Voltage sensing to detect out of range values Intel Precision Cooling Technology Related Links For more information about Desktop Board D946GZTS including the Technical Product Specification TPS BIOS updates and device drivers go to http support intel com support motherboards desktop Supported Operating Syste...

Page 11: ...Desktop Board Features 11 Desktop Board Components Figure 1 shows the approximate location of the major components on Desktop Board D946GZTS Figure 1 Desktop Board D946GZTS Components ...

Page 12: ...chassis fan header 3 pin O Alternate front panel power LED header P Speaker Q Serial ATA connectors R Processor socket S 12 V processor core voltage connector 2 x 2 pin T Processor fan header 4 pin U DIMM 0 Channel A socket V DIMM 0 Channel B socket W Rear chassis fan header 3 pin X Battery Y IDE connector Related Links Go to the following links for more information about Desktop Board D946GZTS ht...

Page 13: ...ons the board should be populated with DIMMs that support the Serial Presence Detect SPD data structure If your memory modules do not support SPD you will see a notification to this effect on the screen at power up The BIOS will attempt to configure the memory controller for normal operation The desktop board supports the dual or single channel memory configurations defined below Two 240 pin Doubl...

Page 14: ...mum of 512 MB of system memory is required in order for the Intel GMA 3000 integrated graphics controller to operate properly Related Link Go to the following link for more information about the Intel 946GZ Express Chipset http developer intel com design nav pcserver htm Onboard Audio Subsystem Desktop Board D946GZTS has a flexible 6 channel 5 1 onboard audio subsystem that includes a SigmaTel STA...

Page 15: ...port One parallel port with Extended Capabilities Port ECP and Enhanced Parallel Port EPP support Serial IRQ interface compatible with serialized IRQ support for PCI systems PS 2 style mouse and keyboard interfaces Interface for one 1 2 MB or 1 44 MB diskette drive Intelligent power management including a programmable wake up event interface PCI power management support LAN Subsystem The LAN subsy...

Page 16: ...er systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements even if no device or a low speed USB device is attached to the cable Use a shielded cable that meets the requirements for a full speed USB device The desktop board supports up to eight USB 2 0 ports via ICH7 four ports routed to the back panel and four ports routed to two internal USB 2 0 header...

Page 17: ...6 connector One PCI Express x1 connector Two PCI bus connectors BIOS The BIOS provides the Power On Self Test POST the BIOS Setup program the PCI PCI Express and IDE auto configuration utilities and the video BIOS The BIOS is stored in a Serial Peripheral Interface SPI Flash device The BIOS can be updated by following the instructions on page 61 in Chapter 3 Serial ATA and IDE Auto Configuration I...

Page 18: ...en available for viewing and changing depending on whether the supervisor or user password was entered Setting a user password restricts who can boot the computer The password prompt is displayed before the computer is booted If only the supervisor password is set the computer boots without asking for a password If both passwords are set you can enter either password to boot the computer Related L...

Page 19: ...e from PS 2 keyboard mouse Power Management Event signal PME wakeup support WAKE signal wake up support ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer The use of ACPI with the desktop board requires an operating system that provides full ACPI support Power Connectors ATX12V compliant power supplies can turn off the computer p...

Page 20: ...n detecting a Magic Packet frame it asserts a wake up signal that powers up the computer Instantly Available PC Technology CAUTIONS For Instantly Available PC technology the 5 V standby line for the power supply must be capable of delivering adequate 5 V standby current Failure to provide adequate standby current when using this feature can damage the power supply and or effect ACPI S3 sleep state...

Page 21: ...by power indicator is still lit disconnect the power cord before installing or removing any devices connected to the board Failure to do so could damage the board and any attached devices The desktop board s standby power indicator shown in Figure 3 is lit when there is standby power still present on the board even when the computer appears to be off For example when this LED is lit standby power ...

Page 22: ...rom an ACPI S3 state PME Signal Wake up Support When the PME signal on the PCI bus is asserted the computer wakes from an ACPI S3 S4 or S5 state WAKE Signal Wake up Support When the WAKE signal on the PCI Express bus is asserted the computer wakes from an ACPI S2 S3 S4 or S5 state Speaker A speaker is mounted on the desktop board The speaker provides audible error code beep code information during...

Page 23: ...elecommunications links networks or modems before performing any of the procedures described in this chapter Failure to disconnect power telecommunications links networks or modems before you open the computer or perform any procedures can result in personal injury or equipment damage Some circuitry on the board can continue to operate even though the front panel power button is off Follow these g...

Page 24: ... sure that the calculated total current loads of all the modules within the computer is less than the output current rating of each of the power supplies output circuits Observe Safety and Regulatory Requirements Read and adhere the instructions in this section and the instructions supplied with the chassis and associated modules If you do not follow these instructions and the instructions provide...

Page 25: ...internal components from dust and foreign objects and promotes correct airflow within the chassis Install the I O shield before installing the desktop board in the chassis Place the shield inside the chassis as shown in Figure 4 Press the shield into place so that it fits tightly and securely If the shield doesn t fit obtain a properly sized shield from the chassis supplier Figure 4 Installing the...

Page 26: ...rforming the procedures described here Failure to disconnect the power before you open the computer can result in personal injury or equipment damage Do not lift or handle the desktop board by the chipset heatsink Handling may damage the thermal interface material that resides between the heatsink and the chipset silicon Refer to your chassis manual for instructions on installing and removing the ...

Page 27: ...Installing and Replacing Desktop Board Components 27 Figure 5 shows the location of the mounting screw holes for Desktop Board D946GZTS Figure 5 Desktop Board D946GZTS Mounting Screw Hole Locations ...

Page 28: ...sor make sure the AC power has been removed by unplugging the power cord from the computer the standby power LED should not be lit see Figure 3 on page 21 Failure to do so could damage the processor and the board To install a processor follow these instructions 1 Observe the precautions in Before You Begin on page 23 2 Open the socket lever by pushing the lever down and away from the socket Figure...

Page 29: ...the socket contacts Figure 7 B Figure 7 Lift the Load Plate 4 Remove the plastic protective socket cover from the load plate see Figure 8 Do not discard the protective socket cover Always replace the socket cover if the processor is removed from the socket Figure 8 Remove the Protective Socket Cover ...

Page 30: ...ays replace the processor cover if the processor is removed from the socket Figure 9 Remove the Processor from the Protective Processor Cover 6 Hold the processor with your thumb and index fingers oriented as shown in Figure 10 Make sure fingers align to the socket cutouts Figure 10 A Align notches Figure 10 B with the socket Figure 10 C Lower the processor straight down without tilting or sliding...

Page 31: ...Installing and Replacing Desktop Board Components 31 7 Pressing down on the load plate Figure 11 A close and engage the socket lever Figure 11 B Figure 11 Close the Load Plate ...

Page 32: ...install the Thermal Module use the following procedure 1 With the BTX Support and Retention Module SRM installed in the chassis position the Thermal Module on the desktop board with the fan end extending past the edge of the desktop board and over the exposed end of the SRM 2 Align the four captive screws in the Thermal Module with the mounting holes in the desktop board and SRM as shown in Figure...

Page 33: ...ule Fan cable between the Thermal Module and the desktop board or SRM see Figure 13 Figure 13 Use Care Routing the Thermal Module Fan Cable 4 Tighten the captive screw at each corner of the Thermal Module see Figure 14 The screws may be tightened in any order Figure 14 Secure the Thermal Module ...

Page 34: ...he SRM refer to the chassis manual the boxed processor installation manual or the Intel World Wide Web site at Integration Overview for Systems Based on the Boxed Intel Pentium 4 Processor in the 775 Land Package BTX Removing the Processor For instructions on how to remove the Thermal Module and processor refer to the processor installation manual or the Intel World Wide Web site at Integration Ov...

Page 35: ... can access the PC Serial Presence Detect Specification at http www intel com technology memory ddr specs dda18c32_64_128x72ag_a pdf The desktop board has two 240 pin DDR2 DIMM sockets providing Channel A and Channel B For dual channel performance install a matched pair of DIMMs equal in speed and size see Figure 16 Figure 16 Dual Channel Memory Configuration Example NOTE All other memory configur...

Page 36: ...esktop Board D946GZTS Product Guide 36 To make sure you have the correct DIMM place it on the illustration of the DDR2 DIMM in Figure 17 All the notches should match with the DDR2 DIMM Figure 17 Use DDR2 DIMMs ...

Page 37: ...IMM 4 Make sure the clips at either end of the DIMM socket s are pushed outward to the open position 5 Holding the DIMM by the edges remove it from its anti static package 6 Position the DIMM above the socket Align the small notch at the bottom edge of the DIMM with the keys in the socket see inset in Figure 18 7 Insert the bottom edge of the DIMM into the socket 8 When the DIMM is inserted push d...

Page 38: ...mputer 3 Remove the AC power cord from the computer 4 Remove the computer s cover 5 Gently spread the retaining clips at each end of the DIMM socket The DIMM pops out of the socket 6 Hold the DIMM by the edges lift it away from the socket and store it in an anti static package 7 Reinstall and reconnect any parts you removed or disconnected to reach the DIMM sockets 8 Replace the computer s cover a...

Page 39: ...press connector pins Depending on the over current protection of the power supply certain desktop board components and or traces may be damaged Installing a PCI Express x16 Card 1 Observe the precautions in Before You Begin on page 23 2 Place the card in the PCI Express x16 connector Figure 19 A and press down on the card until it is completely seated in the connector and the card retention notch ...

Page 40: ... card from the connector 1 Observe the precautions in Before You Begin on page 23 2 Remove the screw Figure 20 A that secures the card s metal bracket to the chassis back panel 3 Push down on the card ejector lever Figure 20 B to release the card from the connector C 4 Pull the card straight up Figure 20 Removing a PCI Express x16 Card ...

Page 41: ... other IDE transfer protocol are attached to the same cable the maximum transfer rate between the drives may be reduced to that of the slowest drive Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device For example do not connect an ATA hard drive as a slave to an ATAPI CD ROM drive For correct function of the cable 1 Observe the precautions in Before You Begin on...

Page 42: ...Intel Desktop Board D946GZTS Product Guide 42 Figure 21 Connecting the IDE Cable ...

Page 43: ... ATA protocol and connects a single drive to the desktop board For correct cable function 1 Observe the precaution in Before You Begin on page 23 2 Attach the locking cable end to the connector on the board Figure 22 A 3 Attach the cable end without the lock to the drive Figure 22 B Figure 22 Connecting the Serial ATA Cable ...

Page 44: ...onnecting cables to the internal headers observe the precautions in Before You Begin on page 23 Figure 23 shows the location of the internal headers Item Description A Front panel audio B USB 2 0 C Alternate front panel power LED D Front panel E HD Audio Link Figure 23 Internal Headers ...

Page 45: ...tions in Before You Begin on page 23 2 Turn off all peripheral devices connected to the computer Turn off the computer and disconnect the AC power cord 3 Remove the cover 4 Install a correctly keyed and shielded front panel audio cable NOTE Some chassis still use a front panel audio solution based on the AC 97 audio specification Refer to Table 5 below to connect an AC 97 front panel solution to t...

Page 46: ...B 2 0 Header Signal Names USB Port A USB Port B Pin Signal Name Pin Signal Name 1 POWER 2 POWER 3 D 4 D 5 D 6 D 7 GND 8 GND 9 KEY 10 NO CONNECT Note USB ports may be assigned as needed Connecting to the Front Panel Header Before connecting to the front panel header observe the precautions in Before You Begin on page 23 See Figure 23 D on page 44 for the location of the multi colored front panel he...

Page 47: ...e pin assignments for the front panel header Table 8 Alternate Front Panel Power LED Header Pin Description In Out 1 Front panel green LED Out 2 No pin 3 Front panel yellow LED Out Connecting to the HD Audio Link Header See Figure 23 E for the location of the HD Audio Link header Table 9 shows the pin assignments for the header Table 9 HD Audio Link Header Signal Names Pin Signal Name Pin Signal N...

Page 48: ...ti channel audio feature can be enabled Figure 24 shows the back panel audio connectors The default connector assignments are shown in the table The connectors are retaskable using the audio driver interface Item Description A Line in retasking jack B Line out retasking jack C Mic in retasking jack Figure 24 Back Panel Audio Connectors ...

Page 49: ...9 Connecting Chassis Fan and Power Cables Connecting Chassis Fan Cables Connect the chassis fan cables to the two chassis fan headers on the desktop board Figure 25 shows the location of the chassis fan headers Figure 25 Location of Chassis Fan Headers ...

Page 50: ...ion properly The 2 x 12 pin main power connector on the desktop board is backwards compatible with ATX12V power supplies with 2 x 10 connectors Figure 26 shows the location of the desktop board power connectors Figure 26 Connecting Power Supply Cables 1 Observe the precautions in Before You Begin on page 23 2 Connect the main power supply cable to the 2 x 12 pin connector 3 Connect the 12 V proces...

Page 51: ...rs Figure 27 shows the location of the other connectors and headers on the desktop board Item Description A Chassis intrusion header B PCI Express x1 connector C PCI bus connector 1 D PCI bus connector 2 E Diskette drive connector Figure 27 Location of Other Connectors and Headers ...

Page 52: ...ff the power and unplug the power cord from the computer before moving the jumper Moving the jumper with the power on may result in unreliable computer operation Figure 28 shows the location of the desktop board s BIOS configuration jumper block Figure 28 Location of the BIOS Configuration Jumper Block ...

Page 53: ...page 23 2 Turn off all peripheral devices connected to the computer Turn off the computer Disconnect the computer s power cord from the AC power source wall outlet or power adapter 3 Remove the computer cover 4 Find the configuration jumper block see Figure 28 5 Place the jumper on pins 2 3 as shown below 6 Replace the cover plug in the computer turn on the computer and allow it to boot 7 The comp...

Page 54: ... line out connector located on the back panel is designed to power either headphones or amplified speakers only Poor audio quality may occur if passive non amplified speakers are connected to this output Figure 29 shows the back panel connectors Figure 29 Back Panel Connectors ...

Page 55: ...st be in accordance with local environmental regulations PRECAUTION Risque d explosion si la pile usagée est remplacée par une pile de type incorrect Les piles usagées doivent être recyclées dans la mesure du possible La mise au rebut des piles usagées doit respecter les réglementations locales en vigueur en matière de protection de l environnement FORHOLDSREGEL Eksplosionsfare hvis batteriet erst...

Page 56: ...n onjuist type batterij Batterijen moeten zoveel mogelijk worden gerecycled Houd u bij het weggooien van gebruikte batterijen aan de plaatselijke milieuwetgeving ATENÇÃO Haverá risco de explosão se a bateria for substituída por um tipo de bateria incorreto As baterias devem ser recicladas nos locais apropriados A eliminação de baterias usadas deve ser feita de acordo com as regulamentações ambient...

Page 57: ...AUŢIE Risc de explozie dacă bateria este înlocuită cu un tip de baterie necorespunzător Bateriile trebuie reciclate dacă este posibil Depozitarea bateriilor uzate trebuie să respecte reglementările locale privind protecţia mediului ВНИМАНИЕ При использовании батареи несоответствующего типа существует риск ее взрыва Батареи должны быть утилизированы по возможности Утилизация батарей должна проводит...

Page 58: ...nda geri dönüştürülmelidir Kullanılmış piller yerel çevre yasalarına uygun olarak atılmalıdır OСТОРОГА Використовуйте батареї правильного типу інакше існуватиме ризик вибуху Якщо можливо використані батареї слід утилізувати Утилізація використаних батарей має бути виконана згідно місцевих норм що регулюють охорону довкілля ...

Page 59: ...ct the computer s power cord from the AC power source wall outlet or power adapter 3 Remove the computer cover 4 Locate the battery on the board see Figure 30 5 With a medium flat bladed screwdriver gently pry the battery free from its connector Note the orientation of the and on the battery 6 Install the new battery in the connector orienting the and correctly 7 Replace the computer cover Figure ...

Page 60: ...Intel Desktop Board D946GZTS Product Guide 60 ...

Page 61: ...t combines the functionality of the Intel Flash Memory Update Utility and the ease of use of Windows based installation wizards To update the BIOS with the Intel Express BIOS Update utility 1 Go to the Intel World Wide Web site http support intel com support motherboards desktop 2 Navigate to the D946GZTS page click view Latest BIOS updates and select the Express BIOS Update utility file 3 Downloa...

Page 62: ... Flash Memory Update Utility You can obtain either of these files through your computer supplier or by navigating to the Desktop Board D946GZTS page on the Intel World Wide Web site at http support intel com support motherboards desktop Navigate to the D946GZTS page click view Latest BIOS updates and select the ISO Image BIOS Update or Iflash BIOS Update utility file Updating the BIOS with the ISO...

Page 63: ...age press any key to confirm the BIOS upgrade operation 6 Wait for the BIOS upgrade process to complete CAUTION DO NOT POWER DOWN YOUR COMPUTER before the update is complete The update may take up to 5 minutes Updating the BIOS with Iflash With the Iflash Memory update utility you can update the system BIOS from a bootable CD ROM bootable USB flash drive or other bootable USB media The utility ava...

Page 64: ...option during POST to boot to the USB device 3 Manually run the IFLASH EXE file from the USB device and manually update the BIOS Recovering the BIOS It is unlikely that anything will interrupt the BIOS update however if an interruption occurs the BIOS could be damaged Due to BIOS size and recovery requirements a CD R with the BIO file in the root directory will be required For more information abo...

Page 65: ... shutdown due to a thermal event overheating MULTI_BIT_ECC_ERROR The firmware has detected that a Multi Bit ECC Error occurred SINGLE_BIT_ECC_ERROR The firmware has detected that a Single Bit ECC Error occurred CMOS_BATTERY_ERROR The firmware has detected that a CMOS battery failure occurred CMOS_CHECKSUM_ERROR The firmware has detected that a CMOS Checksum Error occurred CMOS_TIMER_ERROR The firm...

Page 66: ...Intel Desktop Board D946GZTS Product Guide 66 ...

Page 67: ... EN 60950 1 2002 Information Technology Equipment Safety Part 1 General Requirements European Union IEC 60950 1 2001 First Edition Information Technology Equipment Safety Part 1 General Requirements International Place Battery Marking There is insufficient space on this desktop board to provide instructions for replacing and disposing of the Lithium ion coin cell battery For system safety certific...

Page 68: ... is in navolging van de bepalingen van Europees Directief 89 336 EEC 73 23 EEC Eesti Antud toode vastab Euroopa direktiivides 89 336 EEC ja 73 23 EEC kehtestatud nõuetele Suomi Tämä tuote noudattaa EU direktiivin 89 336 EEC 73 23 EEC määräyksiä Français Ce produit est conforme aux exigences de la Directive Européenne 89 336 EEC 73 23 EEC Deutsch Dieses Produkt entspricht den Bestimmungen der Europ...

Page 69: ...a Birliği nin 89 336 EEC ve 73 23 EEC yönergelerine uyar Product Ecology Statements The following information is provided to address worldwide product ecology concerns and regulations Recycling Considerations As part of its commitment to environmental responsibility Intel has implemented the Intel Product Recycling Program to allow retail consumers of Intel s branded products to return used produc...

Page 70: ...espondiente reciclado Consulte la http www intel com intel other ehs product_ecology Recycling_Program htm para ver los detalles del programa que incluye los productos que abarca los lugares disponibles instrucciones de envío términos y condiciones etc Français Dans le cadre de son engagement pour la protection de l environnement Intel a mis en œuvre le programme Intel Product Recycling Program Pr...

Page 71: ...ossam enviar produtos Intel usados para locais selecionados onde esses produtos são reciclados de maneira adequada Consulte o site http www intel com intel other ehs product_ecology Recycling_Program htm em Inglês para obter os detalhes sobre este programa inclusive o escopo dos produtos cobertos os locais disponíveis as instruções de envio os termos e condições etc Russian В качестве части своих ...

Page 72: ...components used on the board contain a small amount of lead which is necessary for component performance and or reliability This desktop board is referred to as Lead free second level interconnect The board substrate and the solder connections from the board to the components second level connections are all lead free Table 14 shows the various forms of the Lead Free 2nd Level Interconnect mark as...

Page 73: ...uropean Union AS NZS CISPR22 Class B Australian Communications Authority Standard for Electromagnetic Compatibility Australia and New Zealand CISPR 22 3rd Edition Class B Limits and methods of measurement of Radio Disturbance Characteristics of Information Technology Equipment International CISPR 24 1997 Information Technology Equipment Immunity Characteristics Limits and Methods of Measurement In...

Page 74: ...cable have passed Class B EMC testing and are marked accordingly Pay close attention to the following when reading the installation instructions for the host chassis power supply and other modules Product certifications or lack of certifications External I O cable shielding and filtering Mounting grounding and bonding requirements Keying connectors when mating the wrong connectors could be hazardo...

Page 75: ...ective 89 336 EEC and Low Voltage directive 73 23 EEC Australian Communications Authority ACA C tick mark Includes adjacent Intel supplier code number N 232 Japan VCCI Voluntary Control Council for Interference mark S Korea MIC Ministry of Information and Communication mark Includes adjacent MIC certification number CPU D946GZTS For information about MIC certification go to http support intel com ...

Page 76: ...ltage directive as applicable should be obtained Additionally other directives such as the Radio and Telecommunications Terminal Equipment R TTE directive may also apply depending on product features In the United States A certification mark by a Nationally Recognized Testing Laboratory NRTL such as UL CSA or ETL signifies compliance with safety requirements Wiring and cables must also be UL liste...

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