Dell™ PowerVault™ 715N Systems Service Manual System Overview Basic Troubleshooting Codes, Error Messages, and Indicators Removing and Replacing Parts Jumpers, Switches, and Connectors Using the BIOS Setup Utility Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
Back to Contents Page System Overview Dell™ PowerVault™ 715N Systems Service Manual Overview Power Protection Devices System Features Other Documents You Might Need Service Features Technical Specifications Overview Your network attached storage (NAS) appliance enables you to easily add storage to a workgroup, small office, or small business network and offload the file management responsibilities from the server.
Disk management through Dell OpenManage Array Manager. Dell ActiveArchive™ snapshot software. A BIOS Setup utility for quickly viewing and changing the system configuration information. Diagnostics for evaluating your system's components and devices. For more information about using the system diagnostics, see your Installation and Troubleshooting Guide.
Laboratories (UL) safety-approved. Other Documents You Might Need The following documentation is included with your system: The User's Guide, which describes system features, technical specifications, and the BIOS Setup utility. The Installation and Troubleshooting Guide, which provides information about installing and troubleshooting your system. The System Administrator's Guide, which provides system operation and management information. Dell™ PowerVault™ NAS Manager online help.
Memory module capacities 128-, 256-, and 512-MB registered SDRAM DIMMs; must be rated for 133-MHz operation Minimum RAM 256 MB for early systems with a SN1A system board, or 384 MB for later systems with a SN1B system board Drives IDE hard drives four 1-inch, internal hard drives with capacities of at least 40 GB External Ports and Connectors Serial one 9-pin connector UART 16550-compatible NIC two RJ-45 connectors for connection to internal embedded NICs (Intel 82559 10/100 Ethernet controllers)
Operating bottom only tested (negative z-axis) at 0.25 G zero-to-peak, at a sweep of 3 to 200 Hz at 0.5 octave per minute Non-operating all six sides tested (positive and negative x, y, and z axes) at 0.5 G (sinusoidal wave) zero-to-peak, at a sweep of 3 to 200 Hz at 0.5 octave per minute Maximum shock: Operating half sine wave 31 G (bottom only tested) with pulse duration of 2.
Back to Contents Page Basic Troubleshooting Dell™ PowerVault™ 715N Systems Service Manual Overview Internal Visual Inspection Initial User Contact Running System Diagnostics External Visual Inspection Obtaining Technical Assistance Observing the Boot Routine Overview This section describes basic troubleshooting procedures that can help you diagnose a system problem. The procedures can often reveal the source of a problem or indicate the correct starting point for servicing the system.
1. Inspect the system status LEDs for an indication of component malfunction. 2. Turn off the system, including any attached peripherals. 3. If the system is connected to a power distribution unit (PDU), turn the PDU off and then on again. If the system is not receiving power, plug the PDU into another electrical outlet. If it still is not receiving power, try another PDU, and then reconnect the system to the electrical outlet or PDU. 4.
6. If you need to remove and reseat an expansion card, remove the card as described in "Expansion Card," and carefully reinsert the card in its connector until fully seated. 7. Verify that all jumpers are set correctly. For information about jumper settings, see "System Board Jumpers." 8. Ensure that all cable connectors inside the system are firmly attached to their appropriate connectors. 9. Replace the system cover. 10.
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Back to Contents Page Codes, Error Messages, and Indicators Dell™ PowerVault™ 715N Systems Service Manual Overview System Beep Codes System Messages Status Indicators Overview This section describes beep codes, system error messages, and system status indicators that can occur during system startup or, in the case of some failures, during normal system operation.
Pri Master HDD error Primary hard drive is not responding. Replace the primary hard drive. If the problem persists, replace the system and midplane board. Sec Master HDD error Secondary hard drive is not responding. Replace the secondary hard drive. If the problem persists, replace the system and midplane board. Cache Memory Error Cache memory is defective. Disable the cache memory in the BIOS Setup utility. See "Using the BIOS Setup Utility.
Green indicates normal operation. Flashing amber indicates a system failure. Warning Indicators Any pattern or color indicates a system error. See "System Messages" and "System Beep Codes" for more information about possible system errors. Off indicates normal operation. LAN Indicators LAN 1 LED Green indicates that the system is connected to the network through the LAN 1 port. Flashing green indicates that activity between the system and other devices on the network.
Back to Contents Page Removing and Replacing Parts Dell™ PowerVault™ 715N Systems Service Manual Overview System Board and Midplane Board Bezel Power Supply System Cover Expansion Card Inside the Chassis Riser Card Hard Drives Memory Modules Control Panel Board Microprocessor Cooling Fan Battery Overview The procedures in this section require that you remove the cover and work inside the system.
To replace the bezel, push the levers inward and push the bezel onto the front of the system. System Cover The system has a cover that provides access to system board components and the PCI expansion card. To service the system, remove the cover to gain access to internal components. System Cover Removal CAUTION: See the safety instructions in your System Information booklet before working inside your system. 1. Push the latches on the top of the system inward (see Figure 2). 2.
System Cover Replacement 1. Ensure that tools, parts, or unconnected cables are not left inside the system. 2. Fit the cover over the sides of the chassis until the embossed rear arrowhead is aligned with the arrowhead on the side of the cover (see Figure 2). 3. Slide the cover forward until the latches snap into place. Inside the Chassis In Figure 3, the system cover and bezel are removed to provide an interior view of the system.
The hard-drive bays provide space for up to four, 1-inch hard drives. The hard drives are connected to an integrated hard-drive controller on the system board through a backplane board. Power is supplied to the backplane board, the system board, and internal peripherals through the power supply. The backplane board provides power to the hard drives. During a service procedure, you might be required to change a jumper or switch setting.
2 Power connector 3 Interface cable 4 Hard-drive carrier 5 Screws (4) 4. Insert the replacement hard drive into the carrier and install the screws you removed in step 2a to secure the drive. NOTICE: Ensure that the hard drive's power cables do not extend beyond the outside (left) edge of the carrier, which might cause damage to the wires. 5. Open the handle on the carrier and install the replacement hard drive and carrier into its slot in the drive bay (see Figure 4). 6.
To remove the control panel assembly, perform the following steps. CAUTION: Read the safety instructions in your System Information document. 1. Turn off the system. 2. Remove the bezel. 3. Disconnect the system power cables from their electrical outlets. 4. Remove the system cover. 5. Disconnect the ribbon cable from connector JP5 on the midplane board (see Figure 6). 6. Using a #0 Phillips screwdriver, remove the two screws that secure the control panel to the chassis. 7.
Figure 7. Fan Assembly When replacing the fan assembly, ensure that the fan fits over the pegs on the chassis floor, as well as the fan power connector on the corner of the system board. System Board and Midplane Board The system board and midplane board are joined together with a connector and secured to a metal bracket. Connectors on the front of the midplane board connect to the four hard drives.
System Board and Midplane Board Removal CAUTION: Read the safety instructions in your System Information document. 1. Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet. 2. Remove the bezel. 3. Remove the system cover. 4. Remove the fan assembly. 5. Pull each hard-drive carrier partially out of its slot, approximately 2.5 cm (1 inch). 6. Label and disconnect the control panel ribbon cable attached to the midplane board (JP5). 7.
9. Install the riser card. 10. Install the expansion card. 11. Install the fan assembly. 12. Replace the system cover. 13. Replace the bezel. 14. Reconnect any external peripheral cables that you disconnected from their connectors at the back of the system. 15. Connect the power to the system and turn on the system. System Board Features Figure 9 defines the system board features. The system board labels are in parentheses.
To remove a power supply, perform the following steps. CAUTION: Avoid touching the cable connectors on the power supply. Wait 10 to 20 seconds after disconnecting the power cord before removing the power supply or coming into contact with its cable connectors. 1. Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet. 2. Open the bezel. 3. Remove the system cover. 4. Remove the fan assembly. 5.
2 Expansion-card latch 3 Expansion-card bracket slot 4 Riser-card slot 5 Riser card Expansion-Card Removal CAUTION: Read the safety instructions in your System Information document. 1. Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet. 2. Remove the system cover. 3. Release the expansion-card latch (see Figure 11). 4. Remove any cables attached to the expansion card. 5. Grasp the expansion card out and pull it away from the riser-card connector.
3. If not already installed, install the riser card. NOTICE: The riser card must be properly seated in its system board connector before attempting to install an expansion card. 4. Insert the expansion card's card-edge connector firmly into the riser card, and ensure that the mounting bracket enters its slot on the chassis back panel (see Figure 11). 5. When the card is fully seated in the connector and the card-mounting bracket is in its slot, close the expansioncard latch. 6.
Memory Modules The two memory module sockets on the system board can accommodate from 256 MB to 1 GB of registered SDRAM. Memory modules installed in the sockets must be PC-133 compliant. CAUTION: Read the safety instructions in your System Information document. System Memory Upgrade Kits You can upgrade the system memory by installing combinations of 256- or 512-MB registered memory modules.
4. Install or replace the memory module(s) as necessary to reach the memory total you want (see "Installing Memory Modules" or "Removing Memory Modules"). 5. Replace the system cover. 6. Reconnect the system to the electrical outlet, and then turn on the system. NOTE: To perform the next step, you must use the console redirection function on the serial port (COM1). See the System Administrator's Guide for more information about console redirection. 7.
3. Locate the memory module sockets in which you want to install a memory module. Figure 13 shows the location of the memory module sockets. 4. Press down and outward on the ejectors on the memory module socket, as shown in Figure 14, to allow the memory module to be inserted into the socket. Figure 14. Adding or Removing a Memory Module 1 Memory module socket ejectors (2) 2 Memory module 5.
To replace the microprocessor, perform the following steps. NOTE: Only a technically knowledgeable person should perform this procedure. CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information document. CAUTION: The microprocessor and heat-sink assembly can get extremely hot during system operation. Be sure the assembly has had sufficient time to cool before you touch it.
8. Unpack the new microprocessor. If any of the pins on the microprocessor appear bent, contact technical support. 9. Identify the pin-1 corner of the microprocessor by locating the tiny gold triangle that extends from one corner of the large central rectangular area. The gold triangle points toward pin 1, which is also uniquely identified by a square pad. NOTE: Identifying the pin-1 corner is critical to positioning the microprocessor correctly. 10.
The system battery maintains system configuration, date, and time information in a special section of memory when you turn off the system. The operating life of the battery ranges from 2 to 5 years, depending on how you use the system (for example, if you keep the system on most of the time, the battery gets little use and, thus, lasts longer).
6. Replace the system cover. 7. Reconnect the system to the electrical outlet, and then turn on the system power. 8. Enter the BIOS Setup utility to confirm that the battery operates properly. 9. Enter the correct time and date through the BIOS Setup utility's Standard CMOS Setup settings. Also, re-enter any system configuration information that is no longer displayed on the BIOS Setup screens, and then exit the BIOS Setup utility. 10.
Back to Contents Page Jumpers, Switches, and Connectors Dell™ PowerVault™ 715N Systems Service Manual Overview System Board Jumpers Jumpers — A General Explanation System Board Features Overview This section provides specific information about the jumpers on the system board. It also provides some basic information about jumpers and describes the connectors and sockets on the various boards in the system.
Each of the switches has two positions or settings (usually on and off). To change the setting of a slide switch, use a small pointed object such as a small screwdriver or a straightened paper clip to slide the switch to the proper position. To change the setting of a rocker switch, use the screwdriver or paper clip to press down on the appropriate side of the switch. In either case, do not use a pen, pencil, or other object that might leave a residue on the switch.
Figure 4 defines the system board features, including switches, connectors, and labels located on the system board. The system board labels are in parentheses. Figure 4.
Back to Contents Page Using the BIOS Setup Utility Dell™ PowerVault™ 715N Systems Service Manual Entering the BIOS Setup Utility Disabling a Forgotten Password BIOS Setup Options Clearing CMOS Updating the BIOS Responding to Error Messages This section describes the BIOS Setup utility, which is used to change the system configuration information stored in NVRAM on the system board.
navigate screens in the system differ, depending on the version of operating system installed on your console redirection client system. Because of ANSI limitations, not all keys can be used with console redirection. Table 1 shows keystroke combinations used for the version of Windows on your client system. Table 1. BIOS Setup Navigation Keys (Normal Operation) Keys Action Down arrow Up arrow Space bar Moves to the next field. Moves to the previous field. Cycles through the settings in a field.
When the BIOS Setup utility starts, the main program screen appears. The following options or information fields appear on the main BIOS Setup screen. The main BIOS Setup screen displays the current setup and configuration information and optional settings for your system. Standard CMOS Setup — Sets basic information, such as the date and time, the IDE devices, and the diskette drives.
Advanced Chipset Setup Use this screen to make changes to the system’s memory settings. DRAM Integrity Mode — Allows BIOS to perform a parity/ECC check to the POST memory tests, when enabled. Power Management Setup Use this page to set parameters for system power management operation. Power Management/APM — Allows operating systems that have advanced power management (APM) to control some of the power management operations on the system.
You can enter no more than six letters or numbers. 3. Press . 4. To confirm, enter the password again in the dialog box that appears. 5. Press . The password is required when the system boots or when the user enters the BIOS Setup utility. Auto Configuration With Default Settings To install default settings for all features in the BIOS Setup utility, highlight this menu item and press .
d. In the Map Network Drive window, click different user name. The Connect As... window is displayed. e. Enter a user name and password to connect to the NAS system with administrator privileges. f. Click OK. g. Click Finish. 3. Copy the latest BIOS file from support.dell.com to the share. 4. Disconnect the share from the client system. a. Right-click My Computer and select Disconnect Network Drive. b. Select the share that you want to disconnect and click OK.
13. In the File pull-down menu, select Load BIOS and Flash. 14. When the Open window appears, use the folder's navigation icons to move to the NAS system's desktop, and select the share folder in which you placed the downloaded BIOS file. 15. Click Open. A Load BIOS window appears. 16. Select Load BIOS. This message appears: Are You Sure? 17. Click Yes.
9. When the Send File dialog appears, click Browse, and then select the downloaded BIOS file. 10. Select XModem on the Protocol menu, and then click Send. The client system sends the file to the NAS system and automatically updates the BIOS. The NAS system beeps four times and then reboots.
6. Move the jumper plug back to jumpers 1-2. 7. Replace the battery. 8. Replace the system cover, and then reconnect the system to an electrical outlet and turn it on. The system beeps twice to indicate that the password has been cleared. 9. If you want, enter a new supervisor password. NOTE: If you assign a new supervisor password with the jumper plug still removed, the system disables the new password(s) the next time it boots.
