valis wrote: ↑Thu Aug 01, 2019 10:33 pm
IRQ sharing will NOT be the same as it was for Scope's original era---on a modern system with BIOS and Windows OS all set to defaults ACPI stacks everything on on a few IRQ's (for the most part) depending on what bus the hardware uses, and remaps everything on those shared IRQ's as it sees fit (well beyond what Plug & Play used to do).
Case in point, notice in my screenshot here that there are 512 (virtualized) "ISA" IRQ's, and everything "PCI" (which includes PCIe) is largely on IRC 16-20 (below #511):
Yep, I´ve recognized that to on my office machine running Win7 SP1 32Bit.
These "ISA" IRQs were never seen in WinXP ...
Nonetheless, I see your HD Audio Controller, Intel serial I/O 12C Host Controller-A2E0, NVIDIA GTX 2080 graphics card and the RME card share IRQ #16.
So, when I´d use XITE-1 instead of RME, I´d at least try to find a better slot to get out of the way from graphics card and disable HD Audio in BIOS or deactivate in device manager.
It might not urgently necessary w/ your RME card though.
I dunno what the Intel serial host controller does, so no idea if it made sense disabling/de-activate that too.
To me that means, that list is indicator for IRQ sharing still, but much more complex than before and better than nothing.
Sometimes and w/ luck, the audio card won´t show IRQ sharing or disabling some USB does the trick.
On my office machine mentioned above, the HD Audio Controller is on IRQ #22 exclusively,- so that is what I use w/ ASIO4ALL and earphones,- just only for testing plugins after download in different hosts like Reaper, Tone2 Nano Host 1.0.2 and Cantabile lite,- and it works w/ 256 samples buffer size.
Even I already disabled some stuff like Firewire and LTP in device manager, this machine allows some more optimization since I recognized some driver ("USB to USB2 something" shown by LatencyMon) kicks in occasionally and after a longer period of time.
I cannot identify this driver though ... it seems to have a different name on the machine or isn´t shown in device manager or such.
It´s Gigabyte 956P-DQ6, socket 775 w/ Intel Core2Quad,- so it might be good for SCOPE PCI.
Bud