It seems that the famous
V.Control overclocks only 1 of the two VSA-100 GPUs on your Voodoo 5 5500, so when you overclock to something like 220mhz and think you're tough, in fact you did almost nothing !

This is the only tool that overclocks both of the Voodoo 5 5500 GPUs:
VSA100 Overclocker from the developer KoolSmoky

a letter from the developer himself:
++++++++++++++++++++++++++++++++++++++
VSA100 Overclocker ver.1.00

April 3, 2004

Hardware: Voodoo4 4500, Voodoo5 5500, Voodoo5 6000
Platform: Windows 9x/NT4/2k/XP

Currently both V.Control (my bad! ) and VooDoo5 Overclocker set the
frequency only on the first VSA100. So if you are trying to overclock,
the card will still run rest of the chips at factory settings and you
will see only a marginal improvement in speed since the card will run
as fast as it's slowest VSA100.

This tool will overclock *all* VSA100 chips on the card. The frequency
is set on-the-fly so no reboots are required. The chips will return
to factory settings when the PC is rebooted.

First install V.Control and copy files, VSA100_OC.exe.manifest, VSA100
_OC.exe, and VSA100_OC.dll to the directory of V.Control.

ex) C:\Program Files\KSmoky\V_Ctrl

Unload V.Control from the system tray.

Run VSA100_OC.exe.

The rest should be self-explanatory.

Note: VSA100 Overclocker and V.Control cannot be run at the same time.

If you have questions come visit the english forums at www.3dfxzone.it
V.Control is hosted at http://www.3dfxzone.it/koolsmoky

Enjoy!

Hiroshi Morii (KoolSmoky)
koolsmoky 'at' 3dfxzone 'dot' it
++++++++++++++++++++++++++++++++++++

SO . . . in order to overclock the Voodoo 5 5500 we need:
1) download V.Control 1.82 beta
2) Download VSA100 Overclocker (and follow the order above, when the overclock itself is done from VSA100 Overclocker and not from V.Control(!)
both here: https://www.3dfxzone.it/dir/3dfx/voodoo5/tweakers/

P.S - my Voodoo 5 5500 project: http://www.iopanel.net/forum/thread12920.html