EPIA TVOut driver
pair of utilities for creating full-screen BIOS Boot logos For the VIA
*NEW RELEASE* 12/04/03
This version no
longer chokes on greyscale TIFFs that have alpha
and copes better with greyscale images in general.
BIOS on your computer is risky at the best of times -
the BIOS with a modified BIOS image is VERY
and may well result in a non-working motherboard that
very difficult, if not impossible, to resurrect. You use these
and their results entirely at your own risk.
If you do come
to grief and end up with a machine that won't boot, it
still be possible to resurrect it. If your BIOS chip is
either re-flash it for you, or provide you with a new one, ready
with the BIOS of your choice. When I needed a dead motherboard
my BIOS chip and payment winged their way over to The Netherlands, and
chip was returned, reflashed and working, in around a fortnight :)
BIOS versions have the ability to display a fullscreen
logo when booting, instead of the usual POST screen. The logo
is embedded in the BIOS image, and although its 'filename' has the
.BMP, it is *not* a BMP file - it's an odd but simplistic format
to herein as AWBM.
The boot logos
created by this program have only been tested so far
with my VIA
In theory they
should work with other recent Award BIOS versions that
full-screen logo support, but I have yet to test this.
What does it do?
TIFF2AWBM convert images between 8-bit (256-colour) TIFF
the custom AWBM format used by the EPIA BIOS.
What doesn't it do?
*CANNOT* modify a BIOS image, or extract logos from a
image. For that you need a program like CBROM (version 2.xx
Windows only, unfortunately).
are only intended for use with full-screen logos - they
be used to create EPA (Energy Star) logos.
How do I customise my Boot
your logo in a graphics package. For the EPIA you
to make a 640x480 image with 256 colours. Once you've done that,
it as a TIFF file, and use:
to convert to
AWBM format. (The original logo in the EPIA BIOS
filename VPSD.BMP, though it's most definitely *not* a BMP file...) Now
CBROM to insert this logo into the BIOS image, by typing:
succeeds, you can now flash your machine with the modified BIOS
Note - if your
logo is very elaborate, CBROM may complain that there
enough room in the BIOS file. The EPIA0205.BIN BIOS has about 18k
free space for the logo - but a 640x480x256 image takes about 300k
The BIOS image
is a basically a catalogue of lha files, so you can use
to guage how much space your logo will take when it's compressed:
HINT: If you're having
keeping your logos small enough, try to avoid dithering, and make sure
gradients are vertical (i.e. horizontal scanlines have constant
will help maximise the compression that can be achieved.
desparate for more BIOS space for your logo, it may be
to remove certain parts of the BIOS to make room. On the EPIA
BIOS version 0207, you can safely remove the pxe.lom network boot rom,
the EPA logo, with:
CBROM EPIA0207.BIN /pci release
CBROM EPIA0207.BIN /epa release
this results in a machine that can no longer boot over
network, but the free space for the boot logo is increased to around
If you still need network boot functionality, it may also be
to replace the pxe.lom boot rom with via-rhine etherboot rom, which
works, but is considerably smaller. Please note, though, that I
While I am
currently using a pxe-less BIOS on my EPIA-5000, and it's
nicely, it's quite possible that attempting the same thing on other
/ BIOS revisions will result in a system that won't boot. You
proceed at your own risk!