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D-4 Dell Precision 610 Mini Tower Systems User’s Guide

You can clean the heads of your diskette drives by using a commercially available

diskette-drive head-cleaning kit. These kits include diskettes pretreated with a chemi-

cal solution to nonabrasively remove contaminants that accumulate on the drive

heads during normal opera tion .

If the kit does not contain instructions, insert one of the pretreated diskettes into a

diskette drive and turn on the system. After 20 or 30 seconds, remove the diskette

from the drive. Repeat this procedure for each diskette drive in the computer.

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This section discusses various environmental factors that can adversely af f ect system

performance and longevity.

Temperature extremes can cause a variety of problems, including premature aging

and f ailure of chips or mechanical f ailure o f devi ces. E xtreme temp erat ure fluct uation s

can cause chips to become loose in their sockets and can cause expansion and con-

traction of disk drive plat ters, resulting in read or write data errors. When you perform

a low-level format operation on a hard-disk drive, it is important to ensure that the

drive’s surrounding temperature is at or near the temperature at which the drive will

be opera ted. F ail ure to d o s o c an result i n re loc ati on of th e tra cks on the di sk pla tters.

To mini mize the neg ative ef f ect s of temperat ure on syste m performan ce, fol low these

guidelines:

Ensure tha t the s ystem is ope rated in an e n v ironment no col der than 10° Celsiu s

Ensure that the system has adequ a te ventilation. Do not place it within a closed-

in wall unit or on top of cloth material, which can act as insulation. Do not place it

where it will receive direct sunlight, particularly in the afternoon. Do not place it

next to a heat source of any kind, including heating vents during winter.

Adequate ventilation is particularly important at high altitudes. System perfor-

mance may not be optimum when the system is operating at high temperatures

as well as high altitudes.

Make sure that all slots and openings on the computer remain unobstructed,

especially the fan vent on the back of the computer.

Clean the syst em at regular intervals to avoid any buildup of dust and debris,

which can cause a system to overheat.

If the system has been exposed to abnormally cold temperatures, allow a two-

hour warm-up period to bring it up to normal operating temperature before