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Audio dropouts apparently related to ataport.sys
I have recently been experiencing problems such as audio dropouts and freezes of the ASIO transport. Latencymon has flagged ataport.sys (which Latencymon says is the "ATAPI driver extension") as having excessive DPC routine execution time. However I am confused because I thought that ATAPI was used for things such as optical drives, and I don't have any optical drives on this machine. All I have plugged into it are a hard disk, graphics card, on-board sound, on-board ethernet (no wifi), USB audio interface, some USB MIDI controllers and and a USB wireless keyboard/mouse combo.
I used not to have this problem, and I'm having trouble working out what has changed, if anything.
One thing I have been wondering is whether it matters which of the SATA sockets on the motherboard the hard disk is plugged into. I'm wondering whether I plugged it into the wrong one by mistake, because I seem to remember that it did matter which socket you used back in the days of PATA. Is there a way to test whether it is in the right socket (assuming that this is indeed an issue) without opening up the machine?—my machine is in a difficult-to-access location behind loads of other gear and it's backbreaking trying to open it up and fiddle around inside it to test things, so it's something I try to avoid if it's not strictly necessary.
EDIT: I've just had another major dropout in audio playback while latencymon was running, and this time usbport.sys appears to have been to blame. This still leaves the question of why I am having problems of this kind now, when I didn't have them before.
Last edited by ricecrispies; 12 Jan 2018 at 04:57.
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