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amber light — Blinking amber indicates a problem with the power supply inside the computer. If the system cannot boot and there is a solid amber light, this indicates a problem with the system board (see "Power Problems" in your computer Owner's Manual). Hard-drive access light green Link integrity light (on integrated network adapter) green light — A good connection exists between a 10-Mbps network and the computer. orange light — A good connection exists between a 100-Mbps network and the computer. off (no light) — The computer is not detecting a physical connection to the network. Activity light (on integrated network adapter) yellow blinking light Diagnostic lights four lights on the front panel (see "Diagnostic Lights") Standby power light AUX_PWR on the system board Power DC power supply: Wattage 305 W Heat dissipation 1041 BTU/hr Voltage (see the safety instructions in the Product Information Guide for important voltage setting information) 90 to 135 V and 180 to 265 V at 50/60 Hz Backup battery 3-V CR2032 lithium coin cell Physical Height 41.1 cm (16.2 inches) Width 18.8 cm (7.4 inches) Depth 45.7 cm (18.0 inches) Weight 14.3 kg (31.4 lb) Environmental Temperature: Operating 10° to 35°C (50° to 95°F) Storage –40° to 65°C (–40° to 149°F) Relative humidity 20% to 80% (noncondensing) Maximum vibration: Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min Storage 0.5 G at 3 to 200 Hz at 1 octave/min Maximum shock: Operating bottom half-sine pulse with a change in velocity of 20 inches/sec (50.8 cm/sec) Storage 27-G faired square wave with a velocity change of 200 inches/sec (508 cm/sec) Altitude: Operating –15.2 to 3048 m (–50 to 10,000 ft) Storage –15.2 to 10,668 m (–50 to 35,000 ft) Back to Contents Page Back to Contents Page Removing the Computer Cover Dell™ Dimension™ 5150/E510 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. 1. Follow the procedures in "Before You Begin." NOTICE: Ensure that sufficient space exists to support the removed cover—at least 30 cm (1 ft) of desktop space. NOTICE: Ensure that you are working on a level, protected surface to avoid scratching either the computer or the surface on which it is resting. 2. Lay your computer on its side with the computer cover facing up. 3. Pull back the cover latch release located on the top panel. Back to Contents Page Back to Contents Page Removing and Installing Parts Dell™ Dimension™ 5150/E510 Service Manual Memory CD/DVD Drive Cards Heat- Sink Assembly Drive Panel Processor Front Panel Fan Assembly Drives Front I/O Panel Hard Drive System Board Floppy Drive Power Supply Media Card Reader (Optional) Memory You can increase your computer memory by installing memory modules on the system board. Your computer supports DDR2 memory. For additional information on the type of memory supported by your computer, see your Owner's Manual. DDR2 Memory Overview DDR2 memory modules should be installed in pairs of matched memory size, speed, and technology. If the DDR2 memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance. See the label on the module to determine the module's capacity. NOTE: Always install DDR2 memory modules in the order indicated on the system board. The recommended memory configurations are: A pair of matched memory modules installed in DIMM connectors 1 and 2 or A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair installed in DIMM connectors 3 and 4 NOTICE: Do not install ECC or buffered memory modules. Only unbuffered, non-ECC memory is supported. NOTE: If you install DDR2 667-MHz memory, the speed is reduced to 533 MHz. If you install mixed pairs of DDR2 400-MHz (PC2-3200) and DDR2 533-MHz (PC2-4300) memory, the modules function at the slowest speed installed. Be sure to install a single memory module in DIMM connector 1, the connector closest to the processor, before you install modules in the other connectors. NOTE: Memory purchased from Dell is covered under your computer warranty. NOTICE: If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module. Otherwise, your computer may not start properly. You should install your original memory modules in pairs either in DIMM connectors 1 and 2 or DIMM connectors 3 and 4. 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 use a maximum of 4 GB of address space; however, the amount of memory available to the opera...