And now, after overclocking the PPC, the 68k and maybe the SCSI, it's time for a graphics boost!
Fortunately, this time the overclock can be done without hacking with soldering and others.
In fact, the overclock of the BVisionPPC (and also of the CVision) can be done via software,
and with a few tooltype parameters of the CGX, we can improve a little the performances.
NOTE: to work, this option needs the CyberGraphX 4 RTG software, upgraded to the last
pre7 beta, that allows the use of brand new functions, activable with the tooltypes.
Let's go!: First of all, let's see how the thing goes. To overclock the BVision, we have to
change two tooltypes. The are two precautional tips, that will prevent the overclock to people
that haven't read carefully the docs, where is stated that overclocking the Permedia could lead,
if done without a cooler, to crashes, and even to the break of the card due to overheating, as the
Permedia could unsolder itself for the heat generated, and you know, Permedia is not a cool chip
even if clocked at the default value. So we have first to add a tooltype that activates another
tooltype, that sets the speed :-) The first tooltype is "IINSTALLEDAFANONMYPERMEDIA2", with
the little thing that it should be inserted backwards, that sounds like: "2AIDEMREPYMNONAFADELLATSNII"!
You can cut the string and paste it to the tooltype of the DEVS:Monitors/BVisionPPC file.
And half of the work is done. This tooltype activates the real overclock one, that allows to
set the mhz used for the card. This is "MELTDOWN=XX", where XX is a number between 80 and 100, and
where 80 is the default value, and every value over it represents an overclock. Do some tests,
and you will find the optimal fail-safe setting, that will improve the graphic performance
according to the added MHZs. Make sure that you add a cooler and a fan, it's never enough when
you have to face chips that run at 100 celsius degrees and more.
I have noticed that the 2D performance improvement is not visible with nude eye, while the 3D one
is far more visible, mainly in demos like Engine (68k), or in games like WipeOut and HereticII, where
the overclocked PPC and the overclocked Permedia2 will give the best speeds available on 1200.
Give a look!