Power supply is an internal unit as far as i know with a FF800; "different power supplies" you probably mean the 220 volts block where your power comes from? Hopefully where you live there's a stable 220-240 Volts powerline, otherwise i seriously would recommend a power stabilizer like Furman makes them, or at least a peak suppressor. I built the latter my self in the past.
There's a thread on a frozen FF800 here https://www.gearslutz.com/board/music-c … 800-a.html. Also here on Firewire PCI(e) cards and more here: http://www.rme-audio.de/english/techinfo/fw800alert.htm
First of all i would dis-connect your FF800 from the 1394 a and or b card (PCI, PCIe, or motherboard connector?). See if it can be switched on "normally" stand alone. You could then de-install the TotalMix stuff from your MAC. With a PC i know they're in the system32 folders i think. Remove the files manually and reboot. If you can test your Firewire 400 or 800 bus with something else maybe? Check your 1394 a/b Firewire computer drivers, with windows i know how to, but with a MAC? Then reinstall the fut-fire-800 file from RME, fresh download, using RME's instructions.
IMO if you cannot access the FF800 then (for firmware vesion and updating) and reload the firmware fresh, or even reinstall an older version, you'll alas ave to send it to AGaudio. I had problems with a recent UFX which came back with a new internal powersupply unit (i think) free of costs. PS I have it for sale now BTW, together with the blue arc remote. - F
PS i had a Fireface 800 for a short while 2 years ago before buying my UFX, and found this readme with the then recent update firmware tool:
RME Intelligent Audio Solutions
Fireface 800 with and without TCO
Flash Update Tool 2.77 for Windows Windows XP/Vista/7 32/64 Bit
!!!New version 04.2014, compatible to 2.9 and 3.x driver!!!
- Requires driver 2.998 or higher
V 2.77: New transmission mode to adress Windows 7 bug
V 2.70:
- Support for different RAM
- volume peak of phase invert fixed
Important notes:
The Flash Update Tool updates the Fireface firmware to the latest revision. An installed driver is required.
How to use:
Start fireface_fut.exe. The program will show you the current revision of your unit, and whether it needs an update or not. If so, then simply press the 'Update' button. A progress bar will indicate when the flash process is finished (Verify Ok).
If more than one unit is installed, all units can be flashed by changing to the next tab and repeating the process.
After the update the unit needs to be reset. This is done by powering down the Fireface for a few seconds. A reboot of the computer is not necessary.
When the update fails (status: failure), the unit's second BIOS will be used from the next cold boot on (Secure BIOS Technology). Therefore the unit stays fully functional. The flash process should then be tried again on a different computer.
Copyright RME 11/2009
All rights reserved. Windows XP/Vista/7 are trademarks of Microsoft Corporation. Fireface is a trademark of RME Germany.