Manuale d’uso / di manutenzione del prodotto 8400 del fabbricante Dell
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Dell™Dimension™8400ServiceManual Before You Begin Opening the Computer Cover Technical Overview Specifications Advanced Troubleshooting System Setup Removing and Installing Parts Closi.
Back to Contents Page Advanced Troubleshooting Dell™Dimension™8400ServiceManual Power Lights Diagnostic Lights Beep Codes System Messages Power Ligh.
Beep Codes Your computer might emit a series of beeps during start - up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies a problem. One possible beep code (code 1 - 3 - 1) consists of one beep, a burst of three beeps, and then one beep.
System Messages Code Cause 1-1-2 Microprocessor register failure 1-1-3 NVRAM 1-1-4 ROM BIOS checksum failure 1-2-1 Programmable interval timer 1-2-2 DMA initialization failure 1-2-3 DMA pa.
Back to Contents Page CMOS Time and Date Not Set Diskette Boot Failure Drive A or B is present but has failed the BIOS POST. Ensure that the drive is installed correctly in the computer and defined correctly in the system setup program. Check the interface cable at both ends.
Back to Contents Page Before You Begin Dell™Dimension™8400ServiceManual Getting Started Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Getting Started This section provides procedures for removing and installing the components in your computer.
2. Disconnect any telephone or telecommunication lines from the computer. 3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board. 4. Open the computer cover .
Back to Contents Page Opening the Computer Cover Dell™Dimension™8400ServiceManual 1. Follow the procedures in " Before You Begin ." 2. Lay the computer on its side so that the arrow on the bottom of the computer points up.
Back to Contents Page Closing the Computer Cover Dell™Dimension™8400ServiceManual 1. Ensure that all cables are connected, and fold cables out of the way. Gently pull the power cables toward you so that they do not get caught underneath the drives.
Back to Contents Page Removing and Installing Parts Dell™Dimension™8400ServiceManual Memory Cards Drives Hard Drive Front - Panel Inserts .
Addressing Memory With 4 - GB Configurations Your computer supports a maximum of 4 GB of memory when you use four 1 - GB DIMMs. Current operating systems, such as Microsoft ® Windows ® XP, can only use a maximum of 4 GB of address space; however, the amount of memory available to the operating system is less than 4 GB.
5. Insert the module into the connector until the module snaps into position. If you insert the module correctly, the securing clips snap into the cutouts at each end of the module. 6. Close the computer cover . 7. Connect your computer and devices to electrical outlets, and turn them on.
If you are installing or replacing a card, follow the procedures in the next section. If you are removing but not replacing a PCI card, see " Removing a PCI Card ." If you are replacing a card, remove the current driver for the card from the operating system.
7. Before you lower the retention arm, ensure that: l The tops of all cards and filler brackets are flush with the alignment bar. l The notch in the top of the card or filler bracket fits around the alignment guide. 8. Press the retention arm into place, securing the card(s) in the computer.
Removing a PCI Card 1. Follow the procedures in " Before You Begin ." 2. Press the lever on the card retention arm and raise the retention arm. 3. If necessary, disconnect any cables connected to the card. 4. Grasp the card by its top corners, and ease it out of its connector.
2. Press the lever on the card retention arm and raise the retention arm. 3. If you are installing a new card, remove the filler bracket to create a card - slot opening. Then continue with step5 . 4. If you are replacing a card that is already installed in the computer, remove the card.
8. If you replaced a card that was already installed in the computer and you removed the top of the retention mechanism, you may reinstall the top. 9. Before you lower the retention arm, ensure that: l The tops of all cards and filler brackets are flush with the alignment bar.
b. Connect the network cable to the add - in network adapter's connectors. Do not connect the network cable to the integrated connector on the back panel. 16. Install any drivers required for the card as described in the card documentation.
When you install a drive, you connect two cables — a DC power cable and a data cable — to the back of the drive and to the system board. Some drives may also have an audio connector; one end of the audio cable attaches to the drive connector and the other end attaches to the system board.
2. Press in on the tabs on each side of the drive and slide the drive up and out. Installing a Hard Drive 1. Unpack the replacement hard drive, and prepare it for installation. 2. Check the documentation for the drive to verify that it is configured for your computer.
6. Check all connectors to be certain that they are properly cabled and firmly seated. 7. Close the computer cover . 8. Connect your computer and devices to electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation.
a. Disconnect the power and the data cable from the back of the first hard drive. b. Press in the two rail tabs and pull the first hard drive out of the upper bay. c. Gently slide the first hard drive into the lower bay until you hear a click.
4. From the outside of the computer, pull the insert away from the computer's front panel. 5. Remove the insert from the insert frame by pressing on the four tabs. 6. Reattach the empty insert frame over the front of the drive bay. The insert frame fits only one way.
3. Press inward on the two tabs on the sides of the drive, slide the drive upward, and then remove it from the floppy - drive bay. Installing a Floppy Drive 1.
8. Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 9. Enter system setup and select the appropriate Diskette Drive option.
Installing a CD/DVD Drive 1. If you are installing a new drive, unpack the drive and prepare it for installation. Check the documentation that accompanied the drive to verify that the drive is configured for your computer. If you are installing an IDE drive, configure the drive for the cable select setting.
Airflow Shroud Removing the Airflow Shroud 1. Follow the procedures in " Before You Begin ." 2. Disconnect the cooling fan power cable from the fan connector on the system board. 3. Disconnect the power cable from the power connector on the system board.
b. On the retention base locate the tab opposite the power supply. Press on the retention base tab until the heat sink pops up slightly. c. Press out on the second retention tab while lifting the heat sink up and out of the retention base. 3.
5. To remove the processor from the socket, lift the processor vertically in one motion. Leave the release lever extended in the release position so that the socket is ready for the new processor. Installing the Processor 1. Unpack the new processor.
6. Pivot the socket release lever back toward the socket and snap it into place to secure the processor. If you installed a processor replacement kit from Dell, return the original heat sink assembly and processor to Dell in the same package in which your replacement kit was sent.
2. Open the computer cover . 3. Remove any components that restrict access to the system board. 4. Disconnect all cables from the system board. 5. Before you remove the existing system board assembly, visually compare the replacement system board to the existing system board to make sure that you have the correct part.
9. Connect your computer and devices to electrical outlets, and turn them on. Power Supply Removing the Power Supply 1. Follow the procedures in " Before You Begin ." 2. Disconnect the DC power cables from the system board and the drives.
7. Connect your computer and devices to electrical outlets, and turn them on. Battery Replacing the Battery A coin - cell battery maintains computer configuration, date, and time information.
Back to Contents Page Specifications Dell™Dimension™8400ServiceManual Processor Processor type Intel ® Pentium ® 4 with HT Technology NOTE: Not all Pentium 4 processors support Hyper - Threading technology.
x16 slot bidirectional speed — 8 GB/s PCI connector three connector size 120 pins connector data width (maximum) 32 bits PCI Express connector one x1 connector size 36 pins c.
Back to Contents Page orange light — A good connection exists between a 100 - Mbps network and the computer. yellow light — A good connection exists between a 1 Gb (or 1000 - Mbps) network and the computer. off (no light) — The computer is not detecting a physical connection to the network.
Back to Contents Page System Setup Dell™Dimension™8400ServiceManual Overview Entering System Setup System Setup Screens System Setup Options Boot.
NOTE: If you insert a boot device and restart the computer, this option appears in the system setup menu. To boot from a USB memory device, select the USB device and move it so it becomes the first device in the list.
Boot Sequence This feature allows you to change the boot sequence for devices. Option Settings l Diskette Drive — The computer attempts to boot from the floppy drive.
4. Press the spacebar to enable or disable a device (enabled devices have a checkmark). 5. Press plus (+) or minus ( – ) to move a selected device up or down the list. Clearing Forgotten Passwords 1. Follow the procedures in " Before You Begin .
a. Locate the 3 - pin CMOS jumper (CLR CMOS) on the system board. b. Remove the jumper plug from pins 2 and 3. c. Place the jumper plug on pins 1 and 2 and wait approximately 5 seconds. d. Replace the jumper plug on pins 2 and 3. 3.
Back to Contents Page Technical Overview Dell™Dimension™8400ServiceManual Inside Your Computer System Board Components Power Supply DC Connector Pin Assignments Inside Your Computer Follow the procedures in " Before You Begin .
Power Supply DC Connector Pin Assignments DC Power Connector P1.
DC Power Connector P2 DC Power Connectors, P3 and P5 Pin Number Signal name Color Wire Gauge 1 +3.3 VDC Orange 16 - AWG 2 +3.3 VDC Orange 16 - AWG 3 COM Black 18 - AWG 4 +5 VDC.
DC Power Connector P4 DC Power Connector P6 DC Power Connector P7 DC Power Connectors, P8 and P9 2 COM Black 3 +5 VDC Red 4 COM Black 5 +12 VB DC White Pin Number Signal Name 18 - AWG Wire 1 N/C N/C 2 COM Black 3 COM Black 4 +3.
DC Power Connector P10 Back to Contents Page 1 +12 VB DC White 2 COM Black 3 COM Black 4 +5V DC Red Pin Number Signal Name 18 - AWG Wire 1 +12 B VDC White 2 +12 B VDC White 3 +12 B.
Back to Contents Page Dell™Dimension™8400SystemsServiceManual Notes, Notices, and Cautions Abbreviations and Acronyms For a complete list of abbreviations and acronyms, see the Dell Dimension Owner's Manual .
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Dell 8400 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Dell 8400 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Dell 8400 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Dell 8400 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Dell 8400, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Dell 8400.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Dell 8400. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Dell 8400 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
