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Frequently Asked Questions about Seagate Hard Drive|FAQ-Intel | FAQ-Logitech | FAQ-ViewSonic | FAQ-Kingston Memery | FAQ-Viking Memery | | FAQ-Western Digital | FAQ-Seagate | FAQ-Maxtor | FAQ-VIA | FAQ-3COM | | FAQ-ACER | FAQ-HP | FAQ-Creative | Why does Device Manager list my ATA/100 device as using PIO instead of UDMA? Windows 2000 does not support ATA/100 (Mode 5) for IDE hard drives until service pack 2 is installed. Without service pack 2 all ATA/100 IDE hard drives that are used with Windows 2000 default to ATA 66 (Mode 4), or PIO mode. How to use FDISK, FORMAT, and SYS to setup a new Seagate ATA drive? Before proceeding with installing an operating system (DOS/Windows 9x), the drive must first be partitioned and formatted. A drive/partition will not be assigned a drive letter and can not be formatted until partitioned using FDISK or a similar utility. If the new drive is a second drive, partitioning and formatting can be done within Windows. Go to the DOS Prompt and run FDISK to set up partitions. A second drive can be formatted within Windows by right clicking the drive in My Computer or Windows Explorerand selecting Format. If the new drive is to be the boot drive, then a startup diskette will need to be used (Windows Me requires the distribution CD to build a bootable hard drive). The startup diskette should be included with the operating system or one can be made from within Windows. A Startup disk can be made by going to Start | Settings | Control Panel | Add/Remove Programs| Startup Disk tab. Place the startup diskette into the A: drive and reboot the computer. FDISK After configuring the new drive as master or slave and configuring system BIOS for the new drive, boot the system with the startup disk in drive A:. At the prompt, type FDISK and <enter>. After the FDISK utility starts, the first screen (if using FAT32 version) should ask if you want to use Large Drive support. If your drive is over 512 MB and you want to make partitions over 2 GB, answer Yes. The next screen should be a menu with either 4 or 5 numbered selections. FDISK Options Current Fixed Disk Drive: 1 Choose one of the following options
Option 1 is used to create a Primary DOS partition or an Extended partition and set the partition(s) size. Use Option 2 to set the boot partition as Active (only one partition can be set Active using FDISK). Option 3 is used to delete partitions (Primary DOS, Extended, Non-DOS). Option 4 displays all settings for each partition. Option 5 lets you select which Fixed Disk to partition (maximum of 4 fixed disks with FDISK). After all configurations are made, use the ESC key to exit the program. Before the drive can be Formatted, the computer will need to be re-booted in order for the new partitions to be given a Drive Letter. Steps for partitioning a hard drive using FDISK
Drive Lettering Drive letter assignment is dynamic, meaning DOS/Windows hands out drive letters in sequence each time the computer boots. Booting to a DOS/Windows floppy and running FDISK /STATUS is a quick way to see how the operating system has assigned hard drive letters. DOS/Windows (FAT File Structure) is limited to four Primary DOS partitions and can only assign one Primary DOS partition per physical hard drive. Using Extended Partitions and Logical Drives, you are only limited by the alphabet for Drive Letters. Every device in your computer has a priority. Drive letters A: and B: are reserved for the Floppy drives. Hard Drives begin with Drive letter C:. Primary DOS partitions have priority over Extended DOS partitions. Therefore, the bootable floppy drive is A:, the non-bootable floppy drive (if present) is B:, the first Active (bootable) primary partition on the first hard drive is C:. Any logical drives or Extended DOS partitions would become D:, E:, F:, etc. (Some networking software reserves Drive Letters starting with F:). If a second hard drive is in the system, the second Primary DOS partition would be D: and then logical drives or Extended DOS partitions on the first drive would then become E:, F:, G:, respectively (Primary DOS has priority over Extended DOS) followed by any logical drives or Extended DOS partitions on the second drive. After four Primary DOS partitions have been used, the next priority is for devices loaded by an external BIOS such as SCSI devices. The last priority is for devices controlled by "block mode" drivers loaded from the CONFIG.SYS and/or AUTOEXEC.BAT; most CD-ROMs fall in this category and their drive letters are assigned when the MSCDEX.EXE loads. RAM drives, Parallel Port drives, and Double Spaced or Stacked drives also fall into this category. If the CD-ROM device driver is loaded first, it gets the next available drive letter. When you add a new device, it will get the next available letter following the above mentioned priority assignment and displace any device using that letter. The displaced device will pick up the next available drive letter, and all associated drivers for the displaced device may need to be reconfigured, a common occurrence when adding a second hard drive to a system with a CD-ROM. FORMAT After a drive is partitioned with FDISK, each partition must be Formatted to make it useable by the Operating System. After re-booting to the A:> prompt, type FORMAT x: (x= drive letter) and <enter>. If this is to be the boot drive, use FORMAT C: /S and <enter> to format the drive and make it bootable by transferring the system files (Windows Me requires the distribution CD to make a drive bootable). The FORMAT command will ask a couple of times if you are sure you want to continue with the operation with the warning that Formatting will destroy all data on the drive. If sure, select Yes. The Format command should start the process and show a percent of drive formatted. If this is a second drive and you are using Windows 95/98, double click the My Computer icon on your Windows desktop. Right click on the first partition of your new drive and choose Format. If this will become the new boot disk, be sure to check the box at the bottom that says "Copy system files." Choose full format. Give the drive a label of up to 11 letters and/or numbers if you like. Click the Start button to begin formatting. You must repeat these steps for each partition you created on the new drive. SYS This command can be used to transfer a fresh copy of system files to a drive that has been partitioned and Formatted (Windows Me will not allow use of SYS command to transfer the system). This will not destroy any data on the drive, but will simply replace the current system files with the ones from the source disk. This is a good way to refresh a drive that has data on it but will no longer boot. Use: SYS x: (x=Drive letter to be refreshed). How is Ultra ATA/100 different from Ultra ATA/33 or Ultra ATA/66? The most significant difference is the increase in transfer rate. There are also some enhancements to error checking with Ultra ATA/100. In addition, these new drives include an enhanced command set to ensure compatibility with future interface additions. What is required to run in Ultra ATA/100 Mode? Similar to Ultra ATA/66, there are basically four requirements:
Will performance be affected if I have to set an Ultra ATA/100 disc drive to a slower speed in order to maintain compatibility with my system? Changing the transfer mode affects only the external transfer rate of the device. If an Ultra ATA/100 device is configured for a slower transfer mode, its maximum speed will of course be limited to the maximum burst transfer rate of that mode. However, the internal performance is not affected by the external transfer mode, therefore the sustained transfer rate will not be as drastically affected as the maximum (burst) transfer rate. Why does my new Ultra ATA/100 drive seem to run slower under Windows 2000 than it did with Windows 98? Microsoft has posted a technical article stating Windows 2000 does not support UATA-100 (Mode 5) for IDE hard drives. According to this article, all UATA-100 IDE hard drives that are used with Windows 2000 will default to UATA-66 (Mode 4). The supported fix is to install Service Pack 3. See Microsoft's article Q260233 for details. (Soucre:Seagate) Related Items: | Seagate Hard Drive | |FAQ-Intel | FAQ-Logitech | FAQ-ViewSonic | FAQ-Kingston Memery | FAQ-Viking Memery | | FAQ-Western Digital | FAQ-Seagate | FAQ-Maxtor | FAQ-VIA | FAQ-3COM | | FAQ-ACER | FAQ-HP | FAQ-Creative | Go to Top | |
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