Topic: DPC latency peaks on Dell Latitude D620
I use a Dell Latitude D620 Laptop (WinXP SP3) and a PCMCIA FW card (NEC chip) for Recordings with the FF400.
Unfortunately I had some rare dropouts during some recordings.
Today I ran the DPC latency checker for some time (without the PCMCIA card and thus without the FF connected) and discovered some rare Peaks of more than 16000?s = 16ms!!
After each initieal Peak there is a second peak exactly 30s later, which is around 8000?s.
Besides of these peaks the DPC performance is under 100?s.
However during some more testing I found out that the DPC Latency gets higher when browsing through the file system (windows explorer) but stays well below 1000?s.
Has anybody similar problems? Or an idea which driver or other device might cause these problems?
Thanks for any help,