Hi Matthias, thanks for your reply.

The revision as printed on the card is 1.7

You should try an external power supply for the MF.

The Multiface will accept AC and DC, as it were. The RME power supplies are pin positive.

perhaps strange to comment here. but it is not a host error problem, but that the Word Clock, when the RME Hammerfall DSP Multiface (1st gen) starts, after cold boot, in the morning, the Word Clock LED lights up, in the Hammerfall DSP Settings, you see sometimes LOCK and even SYNC, under Word Clock.

well i don't have Word Clock connected..

i always notice when seasons change, also equipment can act differently, or other electrical apparatus...

it is cold now in the morning.

it happens only the first minutes. in a way of course no problem. after that it is steady.

by the way, indeed a RME Hammerfall DSP Multiface (1st gen), with a PCI card (Rev 1.8), connected via supplied cable, and a Startech PCI Express to PCI Adapter Card.

drivers: 4.38
windows 10 pro 21H1 (up to date)
Ryzen 9 5900X on a Gigabyte Aeros X570 Elite

(sidenote: when flashing the PCI Card, the RME wasn't used for a long time, it was a gift from a friend, we give eachother stuff, we don't need, or make good prices for it.. a nice combi with my 2021 system/canvas, because well, indeed the driver efficiency is higher, and great latencies..
when flashing the PCI Card to firmware 55, it failed, but i call it flashing with crashing, windows 10 crashed, i didn't gave up, and eventually it succeeded.)

my previous main soundinterface was a Motu Ultralite Mk3 Hybrid, not bad, but the drivers, and the what is called the 'double buffer', made it a dated soundinterface. also the effiency, but that can also be the drivers, was less..

so quite pleased to have soundinterface, that perfectly suits my needs. i use a Roland MMP-2 as pre-amps, for 2 mikes, s/pdif (Multiface as master).

but the Word Clock 'search', and that it even locks and syncs.. is a bit strange.. or not?

EDIT: it is great to have an up-to-date canvas, because i work ITB, with a 19 year old soundinterface that performs, well i can't compare it to all new stuff, but for the price (only the Startech PCI Express to PCI Adapter Card...), well...
and with Roland MMP-2, not quite known, but not bad, it works for me, even great. and that thing must also be 19 years old or so... me like...

works without any problems! i wanted to make a seperate thread, but it is mentioned here several times, and also on Gearspace, that Startech PCI Express to PCI Adapter Card is the one (there are others), that works..

flawlessly (perhaps it did interfere with the flash update process, but unlikely, i think).

and that on a X570 aeros elite, with an AMD... as if AMD is less, but because of some compatibility issues, but also Intel suffers from it (the mentioned Motu wasn't stable, after switching programs (ASIO), and some time; crackles on the AMD system, completely stable). EDIT: some controllers not recognized, solution, a USB PCIe card, with another chipset, and that works...

so, try one! it seems that it works for a lot of people or all, even. and the HDSPe card, second hand is more expensive, than you buy a complete Multiface... even with a HDSPe card, if you can find one, nowadays..

long story short: excellent. no stability issues. using multiple DAW's, and other tools/programs that use ASIO.
latency, well... great, low.. and efficient.. the bridge doesn't seem to add a lot, perhaps only in nanoseconds..

i can never post short messages......