Have you ever played with the transmit and receive buffers in the Intel drivers? When I used to run a HDHR, I found that by tweaking the receive buffer higher to 1024 and using “Extreme” for Interrupt Moderation, I was able to eliminate recording glitches on a machine.
This was a bit of a different scenario as the HDD I/O seemed to be the problem and by increasing the buffer size, I apparently was able to give enough time for the I/O bottleneck to dissipate and buffer to be serviced.
