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PRIVATE CUSTOMERS |
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: Bios Info |
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Bios Info |
A small introduction to the function mode...
- The name comes from Basic Input Output System. The processor on your board does not know
after switching on on at all, which it is to make. Therefore
there is a memory module in that in each computer is durably
instructions stored, the notorious Bios chip. A x86 CCU jumps
after switching on on equal to the end (-16Byte) of chip contents and
implements the branch instruction deposited there. All make that
in such a way. Concerned at the goal, the CCU finds then further
instructions. Then the manufacturers of the Bios (thus Award,
AMI, Phoenix...) inserted functions, in order to test e.g. the
components on the board (power on Selftest), to initialize the put in
maps and to hand (if everything folded) control over to the boat range
of the drive assembly. There the operating system is loaded.
- Before the user has the possibility of calling the set UP
routine. It knows there various attitudes makes (which are that,
finds one with www.bios info.de).
These attitudes can be stored then. They stand however not
in the Bios chip, but in an extra for it meant memory, for the CMOS
RAM. That keeps its contents by means of a small battery.
In addition it is queried also with boats by the Bios.
There now if attitudes stand inside, with which the board cannot
boats, helps the deletion CMOS RAM by Jumper or removing of the
battery. The Bios finds now invalid values and loads on his part
default values, with which a start should be possible.
- The board manufacturers have the basic versions, which
them with Award, AMI, Phoenix... to have bought, their needs adapted.
Often it happens that errors are discovered or new functions in
addition to come. Then it gives from the manufacturer an Bios
update in form of a file to the Download. Also with it is mostly
also a Flashprogramm. Since the Bios chip is already for a long
time a again-recordable component (a so-called Flash Eprom), has the
user now the possibility of filling its chip with new contents.
That is possible, because the chip is used only to boats after
switching on on.
- After the chip was described, a restart is necessary.
Everything folded, starts your PC now with the new software.
Otherwise, that is possibly the reason to read this side.
It can be that the binary file (thus the file of the
manufacturer) was not written correctly.
- Rattert after switching on still the floppy disk drive on,
was activated the boat block of the Bios. That is a range on the
chip, which should not actually be affected with the update. The
Bios notices on the basis check totals whether it is startingable.
Then you can with a special starting disk try to flashen your
chip again. That is described also with www.bios info.de. If you got however a wrong
file, the check totals fit and the Bios does not remember at all to
activate the boat block. (even the high-praised dual Bios board
is immune to it not completely, here must then evenly both chips be
expenditure-soldered.)
- Often the boat block is also also again written.
Since the first action of the Flashprogrammes is the deletion of
the chip, the boat block is also deleted. Subsequently, the chip
is filled from in front with data. Because the boat block is
whole at the end, it can be that e.g. after power failure nothing at
all stands there. Assistance from the outside necessarily
becomes also here. One can remove the chip (mostly) and from a
Bios service (e.g. here with us; -)) again with data to fill
leave.
- That happens with a programming device. In addition
the binary file from the board manufacturer (thus e.g. the newest
update - it is always complete contents of the chip) into the
programming device is loaded. Then the chip thereby is again
geflasht. That is actually nothing different one than what the
Flash Utillities should have done. After the chip was again
inserted (ask correctly around!) functions the PC again.
- Sometimes such a chip also gets broken. With each
boats DMI data are written into the chip. That can be done some
10,000 to 1.000.000 times, depending upon manufacturer. Often
the chip is still readably, only describing fails. Then messages
appear like "Can't write ESCD" or "unknown Flash". These come by
the way also, if one writeprotects the chip by Setup or Jumper.
Sometimes it is a wrong chip.
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Heddesheim, 2024.5.02 at 3:14 |
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