Xbox Homebrew Modchip with PC motherboard (v0.7)
Tutorial
written
by :
XanTium
LEGAL
NOTE:
Opening
your
xbox
will
void
your
warranty
, xbox-scene.com
takes
NO responsibility
for
whatever
might
happen.This
modification
can
be illegal
in your
specific
country
, please
check
your
local
laws
before
using
this
guide.
What
you
need
:
-a PC
motherboard
with
a socketed
BIOS.
-a PDIP
32-pin
FlashROM
(for
example
29F020(2Mbit)
, 29F040(4Mit)
or 29F080(8Mit)).
-a flash
program
like
this
one
(uniflash)
(check
if your
motherboard
is supported).
-an
Xbox
BIOS
images
(for
legal
reasons
we can't
post
it here)
Cut
BIOS
image
The
BIOS
images
is 8Mbit
(1024kbyte)
but
infact
it's
4x the
image
of an
xbox
BIOS
, so
just
256kbyte
is needed.
So if
you
use
a 2Mbit
you
will
have
to split
the
image
in 4,
if you
use
a 4Mbit
chip
you'll
have
to split
it in
2. (if
you
use
a 8Mbit
chip
you
don't
have
to split
the
image).
Windows
Commander
is an
example
of a
program
that
can
split
files
exactly
...
there
are
many
others
thought.
When
the
image
is cut
, use
the
"last
one"
to flash
the
chip.
(if
you
split
in 4
, you
take
the
4th
image
and
if you
split
in 2
you
take
the
2nd).
Remove
PC BIOS
and
put
it back
Just
remove
the
PC BIOS
from
the
socket
once
(when
the
pc is
off)
and
put
it back
in ,
this
will
make
sure
the
BIOS
chip
will
be "easy"
to remove
later.
Check
BIOS
settings
Restart
your
PC (with
the
PC BIOS
in the
socket)
, enter
the
BIOS
settings
and
make
sure
your
PC will
cach
the
BIOS
image
to its
RAM
after
booting
(it
should
be an
option
somewhere
in your
BIOS
settings
, often
called
something
similar
to "cacheable
BIOS")
, else
your
PC will
not
like
you
to remove
the
BIOS
while
the
PC is
running.
Flash
the
BIOS
chip.
Boot
your
pc in
DOS
and
go to
the
location
where
uniflash
is placed.
Now
remove
the
PC BIOS
(yeah
, while
the
pc is
running)
and
insert
the
new
chip
you
bought.
Now
type
"uniflash
-e C:\location\of\xboxbios.bin"
Wire
the
chip
Use
our
diagrams
to wire
your
chip
: ownmade
mod
diagrams
you're
done
:)
Tutorial
written
by :
XanTium
sources
: xboxhacker
