Usinage Manuel ESA-OFPPT-PDF
Information
Adjusting
BIOS settings
To be able
to modify the BIOS parameters, you must first enter the configuration program
child. To do this, you must access it by pressing one or more contacts when the
computer starts. You will therefore start the computer and scan among the
displayed messages for something like "Press <del> to enter
SETUP". Note that the message can be formulated differently (and sometimes
in French!), And that the contact (s) to be pressed can vary (F1, F2, DEL, CTRL
+ Del…).
Before
starting to detail the parameters of the BIOS it should be known that according
to the BIOS manufacturers the alternatives proposed can vary. Likewise,
motherboard manufacturers, who buy BIOS licenses, can connect them according to
the circumstance:
·
Motherboard chipset;
·
Microprocessor model and brand (AMD, CYRIX, INTEL, K6, PII, MMX ...)
· Additional
integrated chipset functionalities: SCSI, child, network ...
We cannot
therefore detail all the alternatives of all the BIOS according to all possible
and imaginable motherboards! We will therefore stick to the parameters and
advancements in addition to current.
To enter the
Setup which will serve as an example, press the "Del" key when
prompted.
Elements of
the Setup
Standard
Setup
Date / Time
Select this choice to change the date
or the time.
Unless you
have a very old hard disk, choose TYPE 47 (however it is sometimes type 0 or
USER depending on the BIOS ...) which allows you to enter custom parameters for
the hard disk. Since the fight of the EIDE interface, the BIOS have the
possibility to configure up to 4 EIDE hard disks or CD-ROM drives (in this case
the type of hard disk will not be 47 but CD-ROM or ATAPI). Once the type of
hard drive defined, you will have to enter the geometry parameters of it that
you should find on a label stuck on it (or in its documentation):
§ Cyl:
number of cylinders on the hard drive.
§ Head:
number of heads.
§ Sect:
number of sectors of the hard disk. Consideration obligatorily 17 for
collectible hard disks MFM (Modified Frequency Modulated) and 26 for disks RLL
(Run Length Limited).
The
following hard drive parameters do not appear in all BIOSs:
§ WPcom:
(Write Precompensation) is not used in addition to the current hard disks:
leave what the standard BIOS defaults to offer (0 or 65535) unless your hard
disk is very old.
§ LZone:
(landing zone) is the zone for parking the address / write heads of the hard
disk if the latter does not do so automatically when the machine is switched
off. The value used here is either the maximum number of cylinders or 0.
§ LBA Mode:
allows the BIOS to support hard disks larger than 540 MB.
§
Multi-division Transfers: sector transfer mode, a high value can improve the
transfer speed. An analyzer in the standard case following the hard drives.
§ Transfer
Mode: Data transfer mode, in addition to this value is high in addition to the
transfers will be fast. If your PC does not start in addition to or you cannot
start up your operating system, decrease this value. Value to decrease also in
case of hard drive crash during overclocking.
§ Ultra DMA:
if your hard drive and your controller allow it, activating this choice will
improve transfers between the hard drive and the PC.
Consideration,
many recent BIOSes avoid the tedious declaration of the parameters of the hard
disk by systematically auto-detecting it at startup or by having a choice
Auto-Detect Hard Disks.
Declaration
of the new IDE hard drive to the computer
You will now
declare the hard drive in the BIOS of the computer so that it, and your
operating system, recognize it.
To do this,
you must enter the BIOS setup program. To declare the hard drive to the BIOS,
you will have to go to the part reserved for disk setup. The ideal is to have
the documentation of your BIOS under the eyes vehicle BIOS screens vary
depending on the publishers who create them and some manufacturers who have
licenses to modify them. Basically avoid going to the "Progressed",
"Chipset", "Attachment and play", "PCI setup"
menus, but go to a "general" or "hard-drive" menu (disc
hard).
Once you
have found the hard disks setup menu, you will discover that there is a list of
lines reserved for configuring disks. Each of them is reserved for a hard disk
and contains different input fields to be filled with the parameters of the
disk. But first you have to find out which line compares the disc you are
interested in. Based on the jib following uses:
The master
hard drive of the chief IDE controller (which will bear the letter C in DOS) is
designated by the lowest number in the BIOS (generally "drive 0") and
which happens to be the head of the list.
The slave
hard drive of the chief IDE controller (which will bear the letter D) appears
in the BIOS with a number higher than the previous drive (drive 1 in general).
The master
hard drive of the second controller has a higher standard number affinity to
the previous one (drive 2).
Finally, the
slave hard drive of the second controller also has a higher number (drive 3).
Note that
this numbering is also valid for CD-ROM drives and CDR (and CD-RW) writers. So,
if you have a master hard drive on the IDE head controller and a master CD-ROM
drive on the second IDE controller these will typically be designated as
standard BIOS standard drive 0 (hard drive) and drive 2 (CD-ROM). You will not
have to fill in the other intermediate fields if you have nothing connected to
the corresponding connectors.
Once you
have found the parameter line for the new hard drive, you must enter the input
fields. Take a sheet of paper and note all the alternatives that are on this
screen (settings of all hard drives) vehicle if you make a mistake you can
return to it. If you have a printer you can also make a screen copy on paper
using the <Print. screen>. BIOS in addition to modern have a choice
"Auto-distinguish" or "Auto", for each hard drive, do not
hesitate to choose vehicle it will take care of the setting according to the
disc. Other BIOSes have a choice that will detect all disks at the record: do
not hesitate to use it there too. Standard against absolutely avoid the option
"group hard drive" or "low level configuration" vehicle you
could lose your data (if you choose a hard drive) or even make the hard drive
unusable (these choices are there for old RLL drives and / or MFM which have no
compatibility with the IDE).
If you
cannot find an alternative to hard drive auto-detection, you will need to enter
its parameters that you noted before installing it in the box (or which can be
found in the documentation that may have been supplied with you) :
In head
enter the type of hard drive. It is generally a number, between 1 and 46, which
defines certain standard hard drive "antique" settings: they will not
serve you anything because they cannot be modified. Standard against when you
go to scroll through this list you could come across the famous choice
"auto" which allows to choose auto-detection (use it!). If you do not
have this alternative you should come across a type 47 (or "Client"
or "0") which will allow you to modify the other settings of the disk
line (note that some BIOSes only offer you the choice between AUTO and USER):
choose it.
You must
then enter the number of cylinders (chamber), heads (heads) and sectors (segments).
Enter these, as you noted them, in the corresponding fields.
There can
also be an alternative "landing zone" (zone where the address heads
can be parked), but which is hardly used any more. If you have noted
information on this one, and that the option is offered to you, enter them,
otherwise leave the field with the number proposed by default (typically 0 or
65535).
If your hard
drive exceeds 540 MB you must activate the LBA option which allows the BIOS to
let the operating system know that it is dealing with a disc larger than this
size. If you do not find this alternative you must use a utility which remedies
this insufficiency of the BIOS and which is generally delivered with the disc
(if this is not the case you will have to buy DISK MANAGER from ONTRACK)
You might
have an Ultra DMA alternative. If you can change the zone to this value: do so,
since your transfers between the computer and the disk buffer will only be
faster.
When you
have entered all the parameters, you can weakling the BIOS after saving them
(often the F10 key performs both operations).