So groove is still panicking at odd times. NMI errors still in evidence. Tried two different AGP video cards, did memory tests. Nothing. This is annoying beyond words. The box panicked last night while I was cutting up some 800MB WAV files on soul, with the data on groove's array. *sigh* Reboot. After writing a quick script to use 85% of the system RAM (doing nothing else), I started concurrent copies of sixteen So groove is still panicking at odd times. NMI errors still in evidence. Tried two different AGP video cards, did memory tests. Nothing. This is annoying beyond words. The box panicked last night while I was cutting up some 800MB WAV files on soul, with the data on groove’s array. *sigh* Reboot. After writing a quick script to use 85% of the system RAM (doing nothing else), I started concurrent copies of sixteen >800MB files from soul across an NFS mount. I also copied 2GB of MP3’s to mycroft via SMB. Simultaneously. The load on groove rose to 20.10, it was surprisingly responsive, and no errors. Woke up this morning to a few dozen.At this point, if tonight’s test with an ancient S3 ViRGE PCI video card doesn’t show results, the mainboard’s going back.