Dell Dimension PY349, Руководство пользователя

Страница: 111 / 158

Appendix
111
System Setup
Overview
Use system setup as follows:
• To change the system configuration information after you add, change, or remove any hardware in your
computer
• To set or change a user-selectable option such as the user password
• To read the current amount of memory or set the type of hard drive installed
Before you use system setup, it is recommended that you write down the system setup screen
information for future reference.
NOTICE:
Unless you are an expert computer user, do not change the settings for this program. Certain changes
can make your computer work incorrectly.
Entering System Setup
1
Turn on (or restart) your computer.
2
When the blue DELL™ logo is displayed, you must watch for the F2 prompt to appear.
3
Once this F2 prompt appears, press <F2> immediately.
NOTE:
The F2 prompt indicates that the keyboard has initialized. This prompt can appear very quickly, so you must
watch for it to display, and then press <F2>. If you press <F2> before you are prompted, this keystroke will be lost.
4
If you wait too long and the operating system logo appears, continue to wait until you see the
Microsoft
®
Windows
®
desktop. Then, shut down your computer (see "Turning Off Your Computer"
on page 61) and try again.
Maximum vibration:
Operating 5 to 350 Hz at 0.0002 G
2
/Hz
Storage 5 to 500 Hz at 0.001 to 0.01 G
2
/Hz
Maximum shock:
Operating 40 G +/- 5% with pulse duration of 2 msec +/- 10% (equivalent to
20 in/sec [51 cm/sec])
Storage 105 G +/- 5% with pulse duration of 2 msec +/- 10% (equivalent
to 50 in/sec [127 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)
Environmental (continued)
book.book Page 111 Monday, July 23, 2007 3:47 PM