PSU causing problems to FW-interface?

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-- PSU causing problems to FW-interface?

Posted by Chronosis on Nov-19-2009 15:20:

PSU causing problems to FW-interface?

So my former 380W Antec True Power broke down last week, and I bought an used 250W PSU from a friend for replacement. Did also a fresh install of software/drivers.

Now my Audiofire just crackles in ASIO applications, if I set "release driver when application is in background" in Cubase, and momentarily switch to any other program / then back, it works fine for a short moment.

I'm not sure what the IRQ settings were before, but now firewire is in bus 21 and no other device shares it. CPU isn't showing any spikes either. So could this be caused by the PSU? (the audiofire isn't powered via FW).

Posted by offensive_newbi on Nov-19-2009 17:30:

Perhaps if you are using an undersized and overheating psu that will surely fry your computer and house.

Posted by Chronosis on Nov-20-2009 14:35:

Works fine now. Did a fresh Windows install from a less tweaked image.

Posted by DJ RANN on Nov-20-2009 19:02:

For future reference there's a whole article on how to fix IRQ issues

HERE

Posted by Chronosis on Nov-20-2009 19:25:

quote:
Originally posted by DJ RANN
For future reference there's a whole article on how to fix IRQ issues

HERE

Posted by cryophonik on Nov-20-2009 19:34:

quote:
Originally posted by offensive_newbi
Perhaps if you are using an undersized and overheating psu that will surely fry your computer and house.

Yeah, that was my first thought as well. 250W is pretty meager for any computer that is performing the tasks required for music production and powering the necessary components, assuming of course that you're using a few HDs, a decent processor (dual-core or better), fans, etc. I'd definitely recommend beefing that up as soon as you can. There are many resources on the web that can help you figure out how much power you should have, but I'd throw out 400W as a minimum guesstimate for most music producing computers. It's one of the most important components in your box - don't skimp on it!

Posted by Chronosis on Nov-20-2009 19:44:

quote:
Originally posted by cryophonik
but I'd throw out 400W as a minimum guesstimate for most music producing computers. It's one of the most important components in your box - don't skimp on it!

Yeah, I'm actually looking at buying the Corsair cx400w.