Setup and Quick Reference Guide
Page 34
... light - Connectors (continued) Expansion slots PCI Express Front panel USB Processor Front panel control Front panel audio HDA header Memory Power 12 V Power LAN on motherboard (LOM) Controls and Lights Front of computer: Power button Power light Drive activity light Diagnostic light Mini Tower: four full-height slots Desktop: four half...
... light - Connectors (continued) Expansion slots PCI Express Front panel USB Processor Front panel control Front panel audio HDA header Memory Power 12 V Power LAN on motherboard (LOM) Controls and Lights Front of computer: Power button Power light Drive activity light Diagnostic light Mini Tower: four full-height slots Desktop: four half...
Setup and Quick Reference Guide
Page 40
NOTE: The diagnostic lights will blink when the power button is amber or off or not receiving power. A possible motherboard failure has occurred. Allow one minute for the power to the system board. • Unplug the computer. This has no other power ... used are plugged into a working by testing it is working electrical outlet and press the power button. • If the problem persists, contact Dell (see "Contacting Dell" on the back of the computer and the electrical outlet. • Bypass power strips, power extension cables, and other significance. Suggested Resolution ...
NOTE: The diagnostic lights will blink when the power button is amber or off or not receiving power. A possible motherboard failure has occurred. Allow one minute for the power to the system board. • Unplug the computer. This has no other power ... used are plugged into a working by testing it is working electrical outlet and press the power button. • If the problem persists, contact Dell (see "Contacting Dell" on the back of the computer and the electrical outlet. • Bypass power strips, power extension cables, and other significance. Suggested Resolution ...
Setup and Quick Reference Guide
Page 41
...the LED still does not illuminate, remove the PSU connections from the motherboard, then press and hold the power supply test button.If it illuminates, there could be with the motherboard. Contact Dell (see "Contacting Dell" on the rear of the power supply unit. If the computer...boot, inspect the CPU socket for damage. • If the problem persists, contact Dell (see "Contacting Dell" on page 66). If it illuminates, there could be a problem with your motherboard. Contact Dell (see "Contacting Dell" on page 66). 4 If the LED still does not illuminate, the problem is...
...the LED still does not illuminate, remove the PSU connections from the motherboard, then press and hold the power supply test button.If it illuminates, there could be with the motherboard. Contact Dell (see "Contacting Dell" on the rear of the power supply unit. If the computer...boot, inspect the CPU socket for damage. • If the problem persists, contact Dell (see "Contacting Dell" on page 66). If it illuminates, there could be a problem with your motherboard. Contact Dell (see "Contacting Dell" on page 66). 4 If the LED still does not illuminate, the problem is...
Setup and Quick Reference Guide
Page 42
...• If the problem persists, contact Dell (see "Contacting Dell" on page 66). Contact Dell (see "Contacting Dell" on page 66). 42 Troubleshooting Tips A possible CPU or motherboard failure has occurred. • Replace the CPU with a known good CPU. Contact Dell (see "Contacting Dell" on page 66). Light Pattern Steady... starts normally, continue to boot, inspect the CPU socket for damage. • If the problem persists, contact Dell (see "Contacting Dell" on page 66). A possible motherboard failure has occurred. • Remove all modules without error.
...• If the problem persists, contact Dell (see "Contacting Dell" on page 66). Contact Dell (see "Contacting Dell" on page 66). 42 Troubleshooting Tips A possible CPU or motherboard failure has occurred. • Replace the CPU with a known good CPU. Contact Dell (see "Contacting Dell" on page 66). Light Pattern Steady... starts normally, continue to boot, inspect the CPU socket for damage. • If the problem persists, contact Dell (see "Contacting Dell" on page 66). A possible motherboard failure has occurred. • Remove all modules without error.
Setup and Quick Reference Guide
Page 43
... not lit after the computer successfully boots to boot, contact Dell (see "Contacting Dell" on page 66). "Contacting Dell" on condition. The computer is in a normal on page 66. • If the problem persists, the motherboard is probably bad. A possible coin cell battery failure has ...back one by one until you find the bad one . • If the problem persists, the motherboard is probably bad. Contact Dell (see "Contacting Dell" on page 66). A possible motherboard failure has occurred. • Disconnect all peripheral cards from the power supply unit. • If...
... not lit after the computer successfully boots to boot, contact Dell (see "Contacting Dell" on page 66). "Contacting Dell" on condition. The computer is in a normal on page 66. • If the problem persists, the motherboard is probably bad. A possible coin cell battery failure has ...back one by one until you find the bad one . • If the problem persists, the motherboard is probably bad. Contact Dell (see "Contacting Dell" on page 66). A possible motherboard failure has occurred. • Disconnect all peripheral cards from the power supply unit. • If...