PlanetZ forums - scopeusers.com

This is a rather bizzarre behavior I've noticed about SFP 4.5 installer. I've finally gotten it working all properly so it's all good, but I'd share my discovery & perhaps someone else with similar experience can shed some technical light on this.

If I have WD MyBook connected on USB2 port during installation of SFP 4.5, it seems to affect the install process...modules in the project don't install correctly or something, giving me errors about some DSP file missing. And I've tried installing it a few times and it was different error message with different module each time. Finally, I was able to isolate the problem to WD MyBook. As soon as I tried installing without WD MyBook connected to my computer, everything installed perfectly. Once SFP is installed, WD MyBook doesn't seem to really affect SFP's performance in anyway.

Has anyone else experienced anything like this...with external HD causing odd SFP 4.5 install behavior? Or anyone have an idea on what might be causing the problem? My initial thought was possibly Scope card was sharing IRQ with USB2 port or something like that but Scope seems to have claimed an independent IRQ all by itself so that's probably not the cause.

BTW, my system is:
Windows XP Pro SP2 running in ACPI Multiprocessor PC mode
ASUS P4P800 Deluxe
P4 3GHz 800MHz FSB
2G PC3200 DIMM
ATi A-I-W 9600
Adaptec AHA-2940 PCI SCSI controller
PowerPulsar (15-DSP)/Pulsar Plus (4-DSP)/Pulsar SRB (4-DSP)
WD 200G HD on primary IDE Master
Plextor PX-712A on 2ndary IDE Master
iomega jaz 1GB on SCSI
iomega zip 100 on SCSI...yes, why?
ScanDisk Cruzer Mini 1G USB device
and of course, the culprit, WD MyBook Pro II 1TB on USB2

since the mybook pro II has firewire, too, as well as your p4p800 should have (iirc), did you also try this constellation?

-greetings, markus-

since the mybook pro II has firewire, too, as well as your p4p800 should have (iirc), did you also try this constellation?

Firewire connection may just be the way to go with WD MyBook! SFP installs perfectly well with the HDD connected on via Firewire. Why? Who knows....

well, it happened to me that every time I plugged-in a USB HDD to the Scope DAW, SFP would crash... This was because of shared IRQs btw scope and USB2 driver I couldn't fix, so what I did was uninstall all USB drivers, put the USB HDD in the other DAW, and use LAN to send files to and from that pc. I am now installing a network HDD so it'll always be available to both computers.

why not just disable the usb controller(s), that are sharing with the scope card(s) in the device manager? most motherboards have many more controllers than you really need.....

I tried disabling individual USB controllers, but the USB2 controller always gets the same IRQ as the Scope... Funny thing is that it happens in standard pc and in ACPI modes.

USB1 is just too slow to transfer files of significant size, so I just disabled them all, and use LAN which is fast enough for me. UltraVNC has a window for file transfer, so I just use that. For MIDI, I'm using a parallel MOTU, but I'll be giving MIDI over LAN a second try...

BTW Gary, since you're here, I would like to ask your opinion on another subject which is explained here: http://www.planetz.com/forums/viewtopic.php?t=23970
I found this through a lot of experimentation and troubleshooting, but I can't explain it, and the thread gathered low interest for someting which is quite unusual noone ever noticed after so many years of Scoping...

(reminder: Scope is in a standalone pc. If I only open SFP, and route incoming MIDI via Hubi, I can't touch anything on the GUI without having severe timing issues. But, if I add ASIO modules to the project, have an app like Reaper use that driver and echo the incoming MIDI to Scope, all is perfect!)


Cheers,

T

why not just disable the usb controller(s), that are sharing with the scope card(s) in the device manager? most motherboards have many more controllers than you really need.....

In my computer, the USB controller that's sharing IRQ with a Sonic Core card seems rather important since when I disable it from Device Manager, all my USB devices are gone. I'm using ASUS P4P800 Deluxe.

At least right now, I'm able to run my system okay at ULLI setting of 7ms @ 44.1 Khz without too much disruptions so not too much complaint here. Spealing of ULLI settings, I'll have to post a new thread regarding it since that's another beast all together.

Tau, i don't know why that problem exists, but if it works with Reaper.....