AMD ATI Radeon HD 3800 Series User Manual download pdf (Page 10)

ATI Radeon™ HD 3800 Series User Manual

1.4 Monitor Compatibility

The ATI Radeon™ HD 3800 series will work with any VGA, Super

VGA or Multisync monitor.

Super VGA monitors can support IBM® standard VGA plus the 800x600

extended mode used by most VGA cards, and the 1024x768 interlaced

mode used by most VGA cards and the IBM® 8514A.

Multisync monitors are more expensive and will work at all Super VGA

resolutions plus additional higher resolutions or refresh rates. The most

useful multisync monitor specification for determining maximum

resolution and refresh capability is the horizontal frequency range. For PC

use, the lower limit of the range must be no less than 30KHz. The upper

limit is usually 48K Hz, 57K Hz or 64K Hz. These correspond to a

maximum resolution of 1024 x 768, 60 Hz refresh, 1024 x768, 72 Hz

refresh rate; and 1280x1024, 60 Hz refresh rate, respectively.

By default, the ATI Radeon™ HD 3800 series will drive your monitor at

a screen refresh rate of 60 Hz. In other words, it repaints the screen 60

times per second. If the screen is not displayed properly when you boot

your system, your monitor may not support the refresh rate for the

resolution chosen. In this case, you must either lower the resolution to one

that can be supported at 60Hz or lower the refresh rate. The maximum

refresh rate supported by your monitor is specified with the Refresh Rate

utility.

Refer to your manual for information on the monitor’s capabilities. If you

are not sure what refresh rate is supported, you can always try a higher

rate. If the screen looks good, the rate is supported (and will be easier on

your eyes).

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AMD ATI Radeon HD 3800 Series User Manual Page 10