Learn about the technologies behind the Internet with The TCP/IP Guide!
NOTE: Using robot software to mass-download the site degrades the server and is prohibited. See here for more.
Find The PC Guide helpful? Please consider a donation to The PC Guide Tip Jar. Visa/MC/Paypal accepted.
View over 750 of my fine art photos any time for free at DesktopScenes.com!

[ The PC Guide | Systems and Components Reference Guide | Motherboard and System Devices | System BIOS | BIOS Settings | IDE Device Setup / Autodetection ]

Write Precompensation

This is a relic from the mid-80s. Older disks that use the same number of sectors for every track sometimes required an adjustment to be made while writing, beginning at a certain track number, and this setting was that value. See here for a better description of write precompensation.

Modern IDE/ATA and SCSI drives have built-in intelligent controllers that take care of these sorts of adjustments (and many more) automatically. This setting should normally be set to -1, 0 or 65535 (the largest value it can support) or whatever value the autodetection sets. Which of these "bogus" values your BIOS uses to mean "there is no write precompensation value for this drive" depends on the BIOS. The number itself is ignored by the drive in any event.

Note: IDE autodetection will set this value automatically.

Next: Landing Zone

Home  -  Search  -  Topics  -  Up

The PC Guide (http://www.PCGuide.com)
Site Version: 2.2.0 - Version Date: April 17, 2001
Copyright 1997-2004 Charles M. Kozierok. All Rights Reserved.

Not responsible for any loss resulting from the use of this site.
Please read the Site Guide before using this material.
Custom Search