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Fwiw... My PCIe-424 card doesn't seem to work properly in the PCIe x1 slot in my computer, but it DOES in the x16 slot. My computer, a Shuttle XH510G2, only has those two slots. Luckily, I don't need to use the x16 slot for anything else (as this a dedicated DAW machine, with only the 424 installed)...

Thanks for the reply, Mike. But... how does it apply to the question posed in my original post? My system is working fine (under Windows). I am not in need of drivers. My question was "has anybody reverse-engineered the configuration protocol" (for the PCI-424 card) such that someone (like...

Has anyone done this, or is aware of an open-source project that has done this? For example, a third-party configuration app alternative to MOTU's own "PCI Audio Setup" and/or "CueMix" apps? I have a system with four 24 I/O interfaces attached to a PCIe-424. As a Windows develope...

Update: I haven't done any chilling spray diagnostics (as Mike suggested), but I did try slapping a heat sink on the larger voltage regular (since that is the one "with" a heat sink in the REV 2 board): https://i.postimg.cc/yJkSDxjf/IMG-4983.jpg ...and, lo and behold, the flashy unit maint...

Thanks Mike. That's a great idea to use a chilling spray.

Interesting too is that the REV 2 main board has a large 12000uf 16V capacitor, whereas the REV 1 has 15000uf 10V. Another design change.

Some things I have tried/noticed: - One of my other (working) units has firmware 1.1, while the "flashy" unit has 1.0. I moved the 1.1 chip into the flashy unit, but this did not help (was a long shot). - I measured voltage output of both regulators (that I could find) in the flashy unit a...

I have a 24 I/O rack unit hooked to a PCIX-424 card. When I first turn the unit on, the sample rate indicators do their normal "scan" before eventually settling on a single rate, which remains solidly lit (for example, "44.1", or whatever was last configured). I can then also con...

It's common under Windows, with hardware that requires a shutdown like a PCI card, to install the driver before installing the hardware so that the Plug & Play system will be "primed" and able to recognize the new hardware upon reboot. It can make the installation process smoother... f...

It's a MusicXPC C6x...
http://musicxpc.com/c6x.asp

Hmm... I don't have the ASUS ATK utility. What is it? When I remove the MOTU driver, then my system can sleep/hibernate normally. When I install again, the problem returns. Besides, the message identifies the MOTU driver specifically... so I'm not convinced the problem is due to another piece of sof...

Hello, I have a 24 I/O with a PCI-242 card. Whenever I try to put Windows to sleep with the PCI-424 driver installed, Windows does not sleep, and about 30 seconds later, the following message appears: "System Standby Failed: The deivce driver for the 'MOTU PCI Audio Device' device is preventing...