Dell PowerEdge 4200 Series User Manual

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Contents

Dell PowerEdge 4200 Series User Manual Manual pdf 52 page image

4-4 Dell PowerEdge 4200 Systems User’s GuideTimeTime resets the time on the computer’s internal clock.Time is kept in a 24-hour format (hours:minutes:seconds). To change the time, use the plus and minuskeys. If you prefer, you can type numbers in each of theappropriate fields.NOTE: If your system is connected to a network, the Timecategory may reflect the time maintained by the networkserver, depending upon how the network is configured. In thiscase, changing the Time category on your system has noeffect.DateDate resets the date on the computer’s internal calendar.Your system automatically displays the day of the weekcorresponding to the settings in the three fields that fol-low (month, day-of-the-month, and year).To change the date, use the plus and minus keys to increaseand decrease the numbers. If you prefer, you can typenumbers in the month, day-of-the-month, and year fields.NOTE: If your system is connected to a network, the Datecategory may reflect the date maintained by the networkserver, depending upon how the network is configured. In thiscase, changing the Date category on your system has noeffect.Diskette Drive A and Diskette Drive BDiskette Drive A and Diskette Drive B identify the typeof diskette drives installed in the drive cage.The options for both categories are:• 360 KB, 5.25 Inch• 1.2 MB, 5.25 Inch• 720 KB, 3.5 Inch• 1.44 MB, 3.5 Inch (default for diskette A)• Not Installed (default for diskette B)Fast Video BIOSFast Video BIOS offers the options of shadowing and/orcaching the video BIOS for improved performance.For the built-in video controller chip, the Fast VideoBIOS category offers the following options:• On and Cached (the default)• On• OffIf you choose the On option, your system boots andimmediately copies the video BIOS code from the flashmemory chip into write-protected memory locations infaster random-access memory (RAM). This process isknown as shadowing. If you choose On and Cached (thedefault), your system boots and not only shadows thevideo BIOS code, but also allows it to be cached. Cach-ing saves time for the microprocessor(s) by holdingavailable the most recently accessed data and instructionsin an intermediate storage area of static RAM (SRAM),which is faster than system RAM. Shadowing and cach-ing let the system manipulate video display data morequickly and easily, improving video performance.Memory CacheMemory Cache can be set to Enabled (the default) orDisabled.Cache memory decreases the average memory cycle timeto boost system performance. You may want to set Mem-ory Cache to Disabled to aid in troubleshooting softwareproblems.Boot SequenceThe Boot Sequence category can be set to A: then C: (thedefault), C: then A:, or C: Only.The term boot refers to the system’s start-up procedure.When turned on, the system “bootstraps” itself into anoperational state by loading into memory a small pro-gram that in turn loads the necessary operating system.Boot Sequence tells the system where to look for the filesthat it needs to load.Selecting A: Then C: causes the system to try bootingfrom drive A first. If it finds a diskette that is not boot-able in the drive or finds a problem with the drive itself,the system displays an error message. If it does not find adiskette in the drive, the system then tries to boot fromthe hard-disk drive (drive C).