Dell OptiPlex 745 User Manual

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If the screen is difficult to read
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Check the diagnostic lights — See Diagnostic Lights.
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Checkthecardsetting— Enter system setup (see Entering System Setup) and ensure that Primary Video option is set correctly. Exit
system setup and restart your computer.
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Run the monitor self-test — Check the monitor documentation for more information.
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Checkthemonitorsettings— See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing
(degaussing) the monitor, and running the monitor self-test.
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Movethesubwooferawayfromthemonitor— Ifyourspeakersystemincludesasubwoofer,ensurethatthesubwooferisatleast60cm
(2ft)awayfromthemonitor.
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Movethemonitorawayfromexternalpowersources— Fans, fluorescent lights, halogen lamps, and other electrical devices can cause
the screen image to appear "shaky." Turn off nearby devices to check for interference.
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AdjusttheWindowsdisplaysettings— 
1. Click the Start button, click Control Panel, and then click Appearance and Themes.
2. Click Display and click the Settings tab.
3. Try different settings for Screen resolution and Color quality.

Dell OptiPlex 745 Specifications

General

Chipset	Intel Q965 Express
Memory	Up to 8GB DDR2 SDRAM
Form Factor	Mini Tower, Desktop, Small Form Factor, Ultra Small Form Factor
Audio	Integrated High Definition Audio
Power Supply	305W (Mini Tower)
Processor	Intel Core 2 Duo, Pentium D
Graphics	Integrated Intel Graphics Media Accelerator 3000
Networking	Integrated Gigabit Ethernet
Expansion Slots	2 PCI, 1 PCIe x16, 1 PCIe x1
Ports	USB 2.0, Serial, Parallel, RJ-45, Audio jacks
Operating System	Windows XP, Windows Vista
Optical Drive	DVD-ROM, DVD+/-RW