Supero SuperServer 5013C-i Скачать руководство пользователя страница 45

Страница: 45 / 118

Chapter 5: Advanced Motherboard Setup

5-9

Figure 5-7. P4SCE Layout

(not drawn to scale)

Jumpers not indicated are for test purposes only.

Keyboard/
Mouse

J11

USB1/2

COM1

Parallel Port

VGA

ATX Power Connector

J20

CPU

478 mPGA

GLAN1

GLAN2

DIMM0A

DIMM0B

J21

+12V Power Connector

M C H

JF1

PCI 1

PCI 2

PCI 3

PCI 4

BATTERY

BIOS

UPER P4SCE

IDE #1

IDE #2

USB5/6

CH FAN1

JPWAKE

JPUSB

COM2

J10

JP8 (WD)

JP3

JL1

JP20

Super I/O

RAGE XL

OHFAN

DIMM1A

DIMM1B

FLOPPY

JBT1

J18 (Speaker)

USB3/4

USB7/8

ICH5R

SATA2

SATA1

J16 (IR)

J17 (PWR LED)

WOR

J33

JP1

JP2

BANK0

BANK1

J34

J35

LE2

WOL

PCI 5

J36

SATA LED

J37

CPU FAN

J38

+12V Power Connector

5-8

Motherboard Details

CH FAN2

CH FAN3

CH FAN4

Содержание SuperServer 5013C-i

Страница 1: ...SUPER SUPERSERVER 5013C T SUPERSERVER 5013C i USER S MANUAL Revision 1 1b...

Страница 2: ...R INABILITY TO USE THIS PRODUCT OR DOCUMENTATION EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN PARTICULAR THE VENDOR SHALL NOT HAVE LIABILITY FOR ANY HARDWARE SOFTWARE OR DATA STORED OR USED W...

Страница 3: ...Advanced Transfer Cache in 478 pin microPGA sockets Manual Organization Chapter 1 Introduction The first chapter provides a checklist of the main components included with the server system and descri...

Страница 4: ...r removing processors or main memory and when reconfiguring the motherboard Chapter 6 Advanced Chassis Setup Refer to Chapter 6 for detailed information on the SC811 1U rackmount server chassis You sh...

Страница 5: ...v Preface Notes...

Страница 6: ...ns 2 2 Server Precautions 2 2 2 4 Installing the SuperServer 5013C T 5013C i into a Rack 2 4 Identifying the Sections of the Rack Rails 2 4 Installing the Chassis Rails 2 5 Installing the Rack Rails 2...

Страница 7: ...g the Control Panel 5 3 5 4 I O Ports 5 4 5 5 Installing Processors 5 5 5 6 Installing Memory 5 7 5 7 Adding PCI Cards 5 8 5 8 Motherboard Details 5 9 P4SCE Layout 5 9 P4SCE Quick Reference 5 10 5 9 C...

Страница 8: ...es 6 1 6 2 Control Panel 6 2 6 3 System Fans 6 3 System Fan Failure 6 3 6 4 Drive Bay Installation Removal 6 3 Accessing the Drive Bays 6 3 Serial ATA Drive Installation 5013C T 6 4 CD ROM and Floppy...

Страница 9: ...rs 7 12 7 4 6 Processor and Clock Options 7 12 7 5 Security 7 14 7 6 Boot 7 15 7 7 Exit 7 16 Appendices Appendix A BIOS POST Messages A 1 Appendix B BIOS POST Codes B 1 Appendix C Software Installatio...

Страница 10: ...x Notes SUPERSERVER 5013C T 5013C i User s Manual...

Страница 11: ...n included with the 5013C T 5013C i as listed below One CPU heatsink SNK P0002 One CPU retention module SKT 0115 One 1 3 5 floppy drive FPD PNSC 02 One 1 slim CD ROM drive CDM TEAC 24 B Two 2 10 cm bl...

Страница 12: ...GB s using DDR 400 SDRAM The AGP interface supports 8x data transfers and operates at a peak bandwidth of 2 1 GB s The CSA Communications Streaming Architecture interface connects the MCH to a Gigabi...

Страница 13: ...ed to populate the DIMM slots All memory modules must be the same size and speed Serial ATA 5013C T A Serial ATA controller is incorporated into the E7210 chipset to provide a two port Serial ATA subs...

Страница 14: ...nd BIOS rescue Figure 1 1 Intel E7210 Chipset System Block Diagram Note This is a general block diagram Please see Chapter 5 for details MCH Processor 0 ICH5R USB Ports 4 ATA 100 Ports 2 DIMM DIMM Dua...

Страница 15: ...e SC811 chassis in cludes a single 250W power supply Serial ATA Subsystem 5013C T For the 5013C T the SC811T chassis was designed to support two Serial ATA hard drives The Serial ATA drives are hot sw...

Страница 16: ...nother is internal two USB ports PS 2 mouse and keyboard ports a graphics port and two Gb Ethernet ports See Figure 1 2 Cooling System The SC811 chassis has an innovative cooling design that features...

Страница 17: ...s SuperMicro Computer B V Het Sterrenbeeld 28 5215 ML s Hertogenbosch The Netherlands Tel 31 0 73 6400390 Fax 31 0 73 6416525 Email sales supermicro nl General Information support supermicro nl Techni...

Страница 18: ...1 8 SUPERSERVER 5013C T 5013C i User s Manual Notes...

Страница 19: ...e if it was damaged in any way If the server itself shows damage you should file a damage claim with the carrier who delivered it Decide on a suitable location for the rack unit that will hold the Sup...

Страница 20: ...e coupled together Always make sure the rack is stable before extending a component from the rack You should extend only one component at a time extending two or more simultaneously may cause the rack...

Страница 21: ...mised Mechanical Loading Equipment should be mounted into a rack so that a hazardous condition does not arise due to uneven mechanical loading Circuit Overloading Consideration should be given to the...

Страница 22: ...ck Rails You should have received two rack rail assemblies with the SuperServer 5013C T 5013C i Each of these assemblies consist of two sections an inner fixed chassis rail that secures to the unit A...

Страница 23: ...ves two functions The first is to lock the server into place when installed and pushed fully into the rack which is its normal position Secondly these tabs also lock the server in place when fully ext...

Страница 24: ...he front of the rack rails Slide the chassis rails into the rack rails keeping the pressure even on both sides you may have to depress the locking tabs when inserting See Figure 2 3 When the server ha...

Страница 25: ...are installing the SuperServer 5013C T 5013C i into a Telco type rack follow the directions given on the previous pages for rack installation The only difference in the installation procedure will be...

Страница 26: ...Check the CPU processor You should have one processor already installed into the system board Each processor should have its own heatsink attached See Chapter 5 for instructions on processor installat...

Страница 27: ...Chapter 2 Server Installation 2 9 Figure 2 5 Accessing the Inside of the SuperServer 5013C T 5013C i with drives removed...

Страница 28: ...k drive to the system 3 Check the Serial ATA disk drives 5013C T Depending upon your system s configuration your system may have one or two Serial ATA drives already installed If you need to install S...

Страница 29: ...switch on the power supply This chapter explains the meanings of all LED indicators and the appropriate response you may need to take 3 2 Control Panel Buttons There are two push button buttons locate...

Страница 30: ...he airflow in the system or the ambient room temperature being too warm You should also check to make sure that the chassis cover is installed and that all fans are present and operat ing normally Fin...

Страница 31: ...ed when the system is operating 3 4 Serial ATA Drive Carrier LED 5013C T Each Serial ATA drive carrier has a green LED When illuminated this green LED on the front of the Serial ATA drive carrier indi...

Страница 32: ...3 4 SUPERSERVER 5013C T 5013C i User s Manual Notes...

Страница 33: ...g power you should first power down the system with the operating system first and then unplug the power cords of all the power supply units in the system When working around exposed electrical circui...

Страница 34: ...r be pulled into a cooling fan Remove any jewelry or metal objects from your body which are excellent metal conductors that can create short circuits and harm you if they come into contact with printe...

Страница 35: ...ll components and printed circuit boards PCBs in their antistatic bags until ready for use Touch a grounded metal object before removing the board from the antistatic bag Do not let components or PCBs...

Страница 36: ...the chassis cover is in place when the 5013C T 5013C i is operating to assure proper cooling Out of warranty damage to the 5013C T 5013C i system can occur if this practice is not strictly followed L...

Страница 37: ...o handle them very carefully see previous chapter To prevent the P4SCE mother board from bending keep one hand under the center of the board to sup port it when handling The following measures are gen...

Страница 38: ...ht out until the rails lock into place 2 Check compatibility of motherboard ports and I O shield The P4SCE requires a chassis big enough to support a 12 x 9 5 motherboard such as Supermicro s SC811 1U...

Страница 39: ...See the layout on page 5 9 for connector locations IDE Device Cables J2 5013C i only CD ROM Drive Cable J5 Floppy Drive Cable J7 Serial ATA Device Cables J3 and J4 5013C T only Serial ATA LED cable J3...

Страница 40: ...I O ports Figure 5 1 Control Panel Header Pins Note The COM2 port is a header on the motherboard located near the ATX power connector Mouse Green Parallel Port Burgundy GLAN1 GLAN2 Keyboard Purple CO...

Страница 41: ...on processors 1 Lift the lever on the CPU socket 2 Install the CPU in the socket Make sure that Pin 1 of the CPU is seated on Pin 1 of the socket both corners are marked with a triangle 3 Press the le...

Страница 42: ...5 6 SUPERSERVER 5013C T 5013C i User s Manual Figure 5 3 478 pin Socket Empty and with Processor Installed Figure 5 4 Heatsink Installation...

Страница 43: ...nserting it incorrectly Gently press down on the DIMM module until it snaps into place in the slot see Figure 5 5 CAUTION Exercise extreme care when installing or remov ing DIMM modules to prevent any...

Страница 44: ...stalling a PCI add on card locate the PCI riser card mentioned in Step 1 Begin by depressing the release latch to remove the shield for the PCI slot Next fully seat the PCI card into the riser card an...

Страница 45: ...0A DIMM0B J21 12V Power Connector MCH JF1 PCI 1 PCI 2 PCI 3 PCI 4 BATTERY BIOS S UPER P4SCE IDE 1 IDE 2 USB5 6 J5 CH FAN1 J2 JPWAKE JPUSB COM2 J10 JP8 WD JP3 JL1 JP20 Super I O RAGE XL OHFAN DIMM1A DI...

Страница 46: ...e up Pins 1 2 Disabled Connector Description COM1 COM2 COM Port 1 Port2 DIMM0A 0B 1A 1B Memory DIMM Slots 1 through 4 Fan 1 2 4 Fan Headers GLAN1 GLAN2 Gigabit LAN Ethernet Ports J2 J5 IDE Ports J2 ID...

Страница 47: ...y to meet the ATX safety re quirements Pins 1 2 3 4 Definition Ground 12 V 12V 4 pin PWR Connector J21 Required Connection IR Connector The infrared connector is located on J16 See the table on the ri...

Страница 48: ...ast 4 seconds See the table on the right for pin defini tions Pin Number 1 2 Definition PW_ON 3V PW_ON Pin Definitions JF1 Pin Number 3 4 Definition Reset Ground Reset Pin Definitions JF1 Overheat LED...

Страница 49: ...pin definitions Hard Drive Activity LED Pin Definitions JF1 Pin Number 13 14 Definition 5V HD Activity Pin Number 15 16 Definition Vcc Control PWR_LED Pin Definitions JF1 Serial Port Pin Definitions C...

Страница 50: ...ATX PS 2 keyboard and the PS 2 mouse are located on J11 The mouse port is above the key board port See the table on the right for pin definitions Universal Serial Bus USB There are two Universal Seria...

Страница 51: ...se this feature Wake On Ring The Wake On Ring header is desig nated WOR This function allows your computer to receive and be awak ened by an incoming call when in the suspend state See the table on th...

Страница 52: ...On a two pin jumper Closed means the jumper is on both pins and Open means the jumper is ei ther on only one pin or completely removed Connector Pins Jumper Cap Setting Pin 1 2 short 3 2 1 3 2 1 Fron...

Страница 53: ...plication freezes the system Pins 1 2 will have WD reset the system if a program freezes Pins 2 3 will generate a non maskable interrupt for the program that has frozen See the table on the right for...

Страница 54: ...table on the right for jumper settings The default setting is En abled Jumper Position Pins 1 2 Pins 2 3 Definition Enabled Disabled GLAN1 NIC Enable Disable Jumper Settings J34 GLAN2 Enable Disable...

Страница 55: ...has two connectors to support two drives This special cable should be used to take advantage of the speed this new technology offers The blue connector connects to the onboard IDE connector inter face...

Страница 56: ...tors There are no jumpers to config ure the onboard IDE interfaces J2 and J5 See the table on the right for pin definitions You must use the ATA100 66 cable included with your system to benefit from t...

Страница 57: ...andle them very carefully The following measures are generally suffi cient to protect your equipment from ESD discharge Precautions Use a grounded wrist strap designed to prevent static discharge Touc...

Страница 58: ...n the motherboard to provide you with system control buttons and status indicators These wires have been bundled together in a ribbon cable to simplify the connection Connect the cable from JF1 on the...

Страница 59: ...for information on replacement fans cabling out of the airflow path The LEDs inform you of system status See Chapter 3 for details on the LEDs and the control panel buttons Details on JF1 can be found...

Страница 60: ...w Serial ATA drive install a drive into the carrier with the printed circuit board side toward the carrier so that the mounting holes align with those in the carrier Secure the drive to the carrier wi...

Страница 61: ...stallation and removal These drives are hot swappable meaning they can be installed and removed without powering down the system To remove first push the release button located beside the drive LEDs t...

Страница 62: ...profile to fit into the 5013C T 5013C i First release the retention screws that secure the unit to the rack Grasp the two handles on either side and pull the unit straight out until it locks you will...

Страница 63: ...r with the four screws see Figure 6 5 2 Installing removing IDE drives The two IDE drive bays are located in the front of the chassis making them easily accessible for installation and removal The IDE...

Страница 64: ...you will hear a click Next depress the two buttons on the top of the chassis to release the top cover and push it away from you You can then lift the top cover from the chassis to gain full access to...

Страница 65: ...puter is turned off a back up battery provides power to the BIOS Flash chip enabling it to retain the system parameters Each time the computer is pow ered on the computer is then configured with the v...

Страница 66: ...p program can be activated in one of two ways 1 By pressing Del immediately after turning the system on or 2 When the following message appears briefly at the bottom of the screen during the POST Powe...

Страница 67: ...B 3 5 in Legacy Diskette B This setting allows the user to set the type of floppy disk drive installed as diskette B The options are None 360Kb 5 25 in 1 2MB 5 25 in 720Kb 3 5 in 1 44 1 25MB 3 5 in an...

Страница 68: ...BIOS to automatically detect the status of the IDE HDD installed in the system such as the size the number of cylinders the configurations of items such as Head Precomp Landing Zone and Sector The opt...

Страница 69: ...up Choose Advanced BIOS Setup from the Award BIOS main menu with the Left Right arrow keys You should see the following display Select one of the items in the left frame of the screen to go to the sub...

Страница 70: ...Type If enabled the option allows the user to determine the ACPI Suspend type The options are S1 POS S3 STR S1 S3 APIC Mode This setting allows you to Enable or Disable APIC APIC is used to assign int...

Страница 71: ...ill automatically configure the SATA controller settings Select Combined Mode to combine the functionality of Parallel ATA PATA and SATA with a maximum of two IDE drives available for each channel If...

Страница 72: ...USB 2 0 EHCI Controller The options are Enabled and Disabled USB Legacy Support This setting allows you to enable or disable the functions of USB Keyboard Mouse under POST and DOS The options are Disa...

Страница 73: ...user to select the UART mode for the BIOS The options are IrDA ASKIR and Normal RxD TxD Active This allows the user to change the settings for the RxD TxD Active function The options are Hi Hi Hi Lo...

Страница 74: ...setting allows you to select the setting for the Watch Dog Timer The Options are Disabled 10 Sec 20 Sec 30 Sec 40 Sec I min 2 min and Enabled Power On Function This setting allows the user to decide...

Страница 75: ...ESCD and Manual Enter Yes if are you are using an OS that is PnP Plug and Play compatible Enter No if your OS does not support PnP Reset Configuration Data Enabling this setting resets the extended s...

Страница 76: ...rious temperatures and voltage levels as indicated CPU Warning Temperature This allows you to set the CPU warning temperature If the CPU temperature reaches this threshold an alarm will activate and a...

Страница 77: ...d and Enabled CPU Clock Ration Key in a number between 12x to 16x to set the clock ratio of the processor The default setting is 16x Auto Detect PCI Clk Set this option to Enabled to enable the BIOS t...

Страница 78: ...key When prompted type the User Password in the dialogue box to set or to change the User Password Password Check This setting allows the user to determine if the password is required every time when...

Страница 79: ...user to specify the order of ROM Read Only Memory the system scans first during bootup The options are SATA RAID and PCI Card First Boot Device This item allows the user to set the first boot up devic...

Страница 80: ...This item allows the user to set the third boot up device The options are Floppy LS120 HDD SCSI CDROM ZIP100 USB FDD USB ZIP USB CDROM USB HDD LAN and Disabled Boot Other Device If enabled this optio...

Страница 81: ...ard Changes is highlighted press Enter to discard any changes you made to the BIOS settings and to stay in BIOS Setup Your system should then continue with the boot up procedure Save Exit Setup When t...

Страница 82: ...7 18 SUPERSERVER 5013C T 5013C i User s Manual Notes...

Страница 83: ...he Power On Self Test POST the BIOS will check for problems If a problem is found the BIOS will activate an alarm or display a message The following is a list of such BIOS messages 1 long beep Memory...

Страница 84: ...A 2 SUPERSERVER 5013C T 5013C i User s Manual Notes...

Страница 85: ...pand the Xgroup codes locating in physical address 1000 0 02h Reserved 03h Initial Superio_Early_Init switch 04h Reserved 05h 1 Blank out screen 2 Clear CMOS error flag 06h Reserved 07h 1 Clear 8042 i...

Страница 86: ...1Dh Initial EARLY_PM_INIT switch 1Eh Reserved 1Fh Load keyboard matrix notebook platform 20h Reserved 21h HPM initialization notebook platform 22h Reserved 23h 1 Check validity of RTC value e g a val...

Страница 87: ...46h Reserved 47h Initialize EISA slot 48h Reserved 49h 1 Calculate total memory by testing the last double word of each 64K page 2 Program writes allocation for AMD K5 CPU 4Ah Reserved 4Bh Reserved 4C...

Страница 88: ...hipset registers according to items described in Setup Auto configuration table 6Ch Reserved 6Dh 1 Assign resources to all ISA PnP devices 2 Auto assign ports to onboard COM ports if the corresponding...

Страница 89: ...Assign IRQs to PCI devices 7 Initialize APM 8 Clear noise of IRQs 86h Reserved 87h Reserved 88h Reserved 89h Reserved 90h Reserved 91h Reserved 92h Reserved 93h Read HDD boot sector information for T...

Страница 90: ...B 6 APPENDIX A SUPERSERVER 5013C T 5013C i User s Manual Notes...

Страница 91: ...system Supero Doctor III displays crucial system information such as CPU temperature system voltages and fan status Install Supero Doctor III after the operating system has been installed Key Feature...

Страница 92: ...anagement Pager and E mail alerts SNMP support Health Monitoring CPU and system temperatures System voltages CPU and chassis fans Chassis intrusion Redundant power failure hardware dependant Note For...

Страница 93: ...rom our website at ftp ftp supermicro com utility Supero_Doctor_III You can also download the SDIII User s Guide at http www supermicro com PRODUCT Manuals SDIII UserGuide pdf For Linux we recommend t...

Страница 94: ...can PATA In addition PATA cables are limited to 40cm in length while SATA cables can reach up to one meter Overall SATA provides better functionalities than PATA Introduction to Intel ICH5R Serial RA...

Страница 95: ...1 Press the Del key during system bootup to enter the BIOS Setup Utility Note If it is the first time powering on the system we recommend you load the Optimized Default Settings If you have already d...

Страница 96: ...BIOS Utility the system will reboot Using the Intel ICH5R SATA RAID Utility Program 1 Creating Deleting and Reseting RAID Volumes a After the system exits from the BIOS Setup Utility it will automatic...

Страница 97: ...Enter key The following screen will appear b Specify a RAID Volume Name and press the Tab key or the Enter key to go to the next field Note You can use the Esc key to reselect the previous menu c Use...

Страница 98: ...N to change the RAID volume Then press the Enter key to enter the value and return to the main menu e You will return to the main menu with DISK VOLUME INFORMATION updated as shown in the following s...

Страница 99: ...the Create RAID Volume menu Press the Enter key to return to the main menu Deleting RAID Volume a In the main menu use the Down Arrow and the Up Arrow keys to select item 2 Delete RAID Volume in the m...

Страница 100: ...d to reselect the previous menu Reset Disks to Non RAID a In the main menu use the Down Arrow and the Up Arrow keys to select item 3 Reset Disks to Non RAID in the main menu b When item 3 is highlight...

Страница 101: ...e previous menu 2 Exiting the ICH5R SATA RAID Configuration Utility Program a In the main menu use the Down Arrow and the Up Arrow keys to select item 4 Exit in the main menu b With item 4 Exit highli...

Страница 102: ...from the list indicated in the XP 2000 Setup Screen and press the Enter key f Press the Enter key to continue the installation process If you need to specify any additional devices to be installed do...

Страница 103: ...to the right of these items to install each item from top to the bottom one at a time After installing each item you must reboot the system before moving on to the next item on the list You should ins...

Страница 104: ...ion Accelerator Utility a When the above screen appears click on the icon marked Applica tion Accelerator RAID Edition and the following screen will appear b When the above screen appears click on the...

Страница 105: ...on the screen and the screen below will appear d Specify the folder that you want the program to be installed in and then click on the icon marked Next to begin the installation process e Specify a p...

Страница 106: ...Once the Application Accelerator RAID Edition installation is com pleted the following screen will appear and the system will start to re boot Note Once the XP 2000 Operating System is installed plea...

Страница 107: ...erator Software Please follow the instructions listed below to workaround this issue 1 Click Start and select Programs from the desktop 2 Click Intel R Application Accelerator RAID Edition and select...

Страница 108: ...C 18 SUPERSERVER 5013C T 5013C i Manual 4 Select the Compatibility Tab from the Intel Application Accelerator Properties menu as shown below...

Страница 109: ...Appendix C Software Installation C 19 5 Select the checkbox beside the item Run this program in compatibility mode for as shown below...

Страница 110: ...C 20 SUPERSERVER 5013C T 5013C i Manual 6 Select the correct OS type for your system from the pull down menu 7 Click Apply and OK to complete your selection as shown below...

Страница 111: ...ication Accelerator RAID Edition 1 Once a hard drive disk has failed a pop up message will appear to alert you that the RAID Volume has been degraded and the following screen will appear C 4 Rebuildin...

Страница 112: ...C 22 SUPERSERVER 5013C T 5013C i Manual 3 Unplug the bad HDD and replace it with a new one 4 After you have replaced the bad HDD go to Disk Management in your system The following screen will appear...

Страница 113: ...the following screen 7 When the above screen appears right click on the new disk and It will bring up a manual for the new disk Select the item Write Signature to the new disk as shown below 8 After y...

Страница 114: ...at a new disk is available 10 Right click on the new disk and select Rebuild to disk as shown on the following screen 11 Once you ve made your selection you can go to the RAID Volume setting to see th...

Страница 115: ...IMM slots to support a maximum of 4 GB unbuffered ECC non ECC DDR 400 333 266 low profile SDRAM DIMM Sizes 256 MB 512 MB 1 GB 184 pin modules supported Serial ATA Controller ICH5R I O controller hub i...

Страница 116: ...lower fans System Input Requirements AC Input Voltage 100 240 VAC Rated Input Current 4A 115V to 2A 230V Rated Input Frequency 50 to 60 Hz Power Supply Rated Output Power 250W Model EFA250 Part PWS 02...

Страница 117: ...B EN 55022 Class B EN 61000 3 2 3 3 CISPR 22 Class B Electromagnetic Immunity EN 55024 CISPR 24 EN 61000 4 2 EN 61000 4 3 EN 61000 4 4 EN 61000 4 5 EN 61000 4 6 EN 61000 4 8 EN 61000 4 11 Safety EN 60...

Страница 118: ...D 4 SUPERSERVER 5013C T 5013C i Manual Notes...

Результаты поиска

Содержание SuperServer 5013C-i

Отзывы:

Похожие инструкции для SuperServer 5013C-i

Бренды по названию

Популярные бренды

Supero SuperServer 5013C-i, Руководство пользователя

Результаты поиска

Содержание SuperServer 5013C-i

Отзывы:

Похожие инструкции для SuperServer 5013C-i

Бренды по названию

Популярные бренды