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Question posted by redGopal on September 19th, 2014

My Dell Dimension 9100 Hard Drive Is Plugged In, But It Won't Turn On.

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Answer #1: Posted by freginold on November 20th, 2014 10:13 AM

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freginold

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Often when a computer won't turn on, it's because one of two components has failed: either the power supply unit or the motherboard (assuming you've ruled out the power coming in from the wall or surge protector as the problem).

Power supplies are generally not terribly expensive, compared to other components. If you're not getting any power at all, the power supply is a likely culprit. It's a much cheaper option to try than the motherboard. If you have a voltmeter or a power supply tester, you can check the power supply to verify that it's not supplying any power.

The motherboard is expensive to replace, so if you think the motherboard is the problem (if you've tried the power supply or ruled it out as the problem) it might be cheaper to get a new computer than have the motherboard repaired or replaced.

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Related Dell Dimension 9100 Manual Pages

Owner's Manual - Page 1

Dell™ Dimension™ 9100 Service Tag CD or DVD eject button CD or DVD activity light FlexBays (2) for optional floppy drive or optional Media Card Reader microphone connector headphone connector diagnostic lights hard-drive activity light power button USB 2.0 connectors (2) cover latch release power connector sound-card connectors (5) network adapter USB 2.0 connectors (5) card slots ...

Owner's Manual - Page 11

... your configuration. Finding Information 11 support.dell.com NOTE: Select your Dell computer. The software automatically detects your computer...Desktop System Software (DSS)- DSS provides critical updates for your computer, and click Submit. 5 Under Select a Device, scroll to view the appropriate support site. • Community - The website may not be as memory, the hard drive...

Owner's Manual - Page 25

...the desktop is on the hard drive and then completely turning off the display and the hard drive after a defined period of inactivity, click the Start button, click Turn Off Computer, and then click Stand by turning ... available in before it . To set standby mode to just the monitor or the hard drive, or you are not using it entered hibernate mode. Hibernate Mode Hibernate mode conserves...

Owner's Manual - Page 26

...a scheme, click the drop-down menu in the Turn off monitor, Turn off the hard drive. If you want to be locked up. To ...turning off the monitor, and turning off hard disks, System stand by, or System hibernates field, and then select a timeout from batteries for the changed scheme. If you want to use your hard drive with enough disk space to store the contents of the computer memory, Dell...

Owner's Manual - Page 36

...com | support.dell.com A program is compatible with the program. • If necessary, uninstall and then reinstall the program. Then restart your mouse, press and hold the power button for an earlier Windows operating system R U N T H E P R O G R A M C O M P A T I B I L I T Y W I Z A R D - BACK UP YOUR FILES IMMEDIATELY USE A VIRUS-SCANNING PROGRAM TO CHECK THE HARD DRIVE, FLOPPY DISKS...

Owner's Manual - Page 46

... page 66). • If the problem persists, contact Dell (see page 119). • Ensure that no special memory module/memory connector placement requirements exist (see page 64). • Verify that the memory modules that you are installing are detected. A possible floppy drive or hard drive failure has occurred. Suggested Resolution • If the computer...

Owner's Manual - Page 47

...turn off after the system successfully boots to ensure that it is functioning properly. • The operating system is correct for the devices installed on your screen identifying a problem with a device (such as the floppy drive or hard drive..., contact Dell (see page 119). If the computer starts normally, troubleshoot the last card removed from the hard drive, CD drive, and DVD drive (see ...

Owner's Manual - Page 51

... Dell PC Restore by Symantec restores your hard drive to resolve a hardware conflict on the hard drive and removes any applications installed after you received the computer. Troubleshooting Tools 51 Dell ... the computer. Manually Reinstalling Drivers 1 After copying the required driver files to your hard drive, click the Start button and right-click My Computer. 2 Click Properties. 3 ...

Owner's Manual - Page 53

... you received your computer. NOTICE: Using PC Restore permanently deletes all data on the hard drive and removes any files or programs until the system restoration is automatically disabled. To use PC Restore: 1 Turn on . Troubleshooting Tools 53 Using Dell PC Restore by Symantec only as the last method to All Programs→ Accessories...

Owner's Manual - Page 58

...block any object near these vents. Use the headphone connector to turn off the computer. Use the lights to turn on the computer. Use only a dry cloth to clean ...computer problem based on page 45. www.dell.com | support.dell.com 5 IEEE 1394 connector (optional) 6 vents 7 USB 2.0 connectors (2) 8 power button 9 hard-drive activity light 10 diagnostic lights (4) 11 ...

Owner's Manual - Page 62

www.dell.com | support.dell.com Inside View of Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. power supply system board CD or DVD drive *floppy drive *may not be present on all computers hard drive 62 Removing and Installing Parts

Owner's Manual - Page 86

... want to keep, back up your computer from the electrical outlet before you align the colored stripe with the pin 1 connector. www.dell.com | support.dell.com Serial ATA hard drives should be connected to the connector labeled SATA on the system board. When disconnecting an IDE cable, grasp the colored pull tab and...

Owner's Manual - Page 88

....dell.com | support.dell.com 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 the drive is configured for your computer. 3 If your replacement hard drive does not have the hard drive bracket attached, remove the bracket from the old hard drive by unsnapping it from the drive. 4 Snap the hard drive...

Owner's Manual - Page 89

... required for the drive to electrical outlets, and turn them on a hard surface. CAUTION: To guard against electrical shock, always unplug your computer and devices to verify that they are properly cabled and firmly seated. 8 Close the computer cover. NOTICE: To connect a network cable, first plug the cable in to the hard drive. Instead, set it...

Owner's Manual - Page 90

... new hard drive. www.dell.com | support.dell.com 3 Press in the empty drive bay and slide the bracket up and out. 4 Snap the hard drive bracket onto the new hard drive. NOTICE: Do not install any drive into place until you feel a click or feel a click. hard drive hard drive bracket 6 Gently slide the drive into the lower hard-drive bay until you have the hard drive bracket...

Owner's Manual - Page 91

... certain that came with the drive for drive operation. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 10...floppy drive, see ""Installing a Floppy Drive" on page 55. 2 Remove the computer cover (see page 60). 7 Connect the power and hard drive cables to the drive. 8 Check all connectors to electrical outlets, and turn them ...

Owner's Manual - Page 106

... 375 W Heat dissipation 1280 BTU/hr Voltage (See the safety instructions 90 to 135 V and 180 to the network. www.dell.com | support.dell.com Controls and Lights Power control Power light Hard-drive access light Link integrity light (on integrated network adapter) Activity light (on the network. solid green for important voltage setting...

Owner's Manual - Page 110

... you to boot from the next device in the boot sequence list. www.dell.com | support.dell.com System Setup Options NOTE: Depending on your computer and installed devices, the...of devices specified in the list. Identifies and defines the SATA controller settings for hard drives. Identifies whether the computer's processor supports Hyper-Threading and lists the processor bus speed, ...

Owner's Manual - Page 138

...hard drive activity light, 58 problems, 31 hardware Dell Diagnostics, 48 Hardware Troubleshooter, 51 headphone connector, 58 Help and Support Center, 12 hibernate mode, 25, 27 Hyper-Threading, 28 I IEEE 1394 connector, 58 installing parts before you begin, 55 recommended tools, 55 turning... two, 21-22 connect VGA, 21-22 display settings, 23 extended desktop mode, 23 hard to read, 43 motherboard.

Owner's Manual - Page 139

... setting up, 13 USB, 14 problems battery, 29 blue screen, 36 CD drive, 30 CD-RW drive, 31 computer crashes, 35-36 computer stops responding, 35 Dell Diagnostics, 48 diagnostic lights, 45 drives, 30 DVD drive, 30 e-mail, 31 error messages, 33 general, 35 hard drive, 31 Internet, 31 keyboard, 34 Media Card Reader, 34 memory, 37...