[mythtv-users] Minimum CPU for separate backend
Cory Papenfuss
papenfuss at juneau.me.vt.edu
Fri Jun 25 09:40:12 EDT 2004
On Fri, 25 Jun 2004, Stephen Tait wrote:
>> For a pvr-x50, a 233MHz should be completely fine for a backend.
>
> Like everyone says, most backend processes use little or no CPU. Commercial
> detection and transcoding do benefit from fast CPU's, but pretty much any
> processor from the past 6 or 7 years should be able to handle the bulk of the
> backend work.
I forgot about the commercial flagging. I suppose if you were running
it on a 233, you couldn't record more than 6 hours a day if you expected
commericals to be tagged on time. Of course, if you're recording and watching
that much TV every day, I think you need to seriously reconsider your
lifestyle!
>
>> Be careful, though... My old dual Celeron 300->450 BP6 did not recognize
>> my PVR-250. I think it's a newer PCI revision (subtle little suckers)
>
> Different PCI revisions usually have the notches on the the PCI slots in a
> different place so you (usually) can't physically fir the card in. The first
> board I tried my 250 in didn't show it up either; this was due to there not
> being enough free IRQ's to give the 250 one to itself.
>
Although I've seen that too (my dual athlon board has 64-bit 3.3v PCI),
the PVR-250 fit into the BP6 fine. It wasn't an IRQ conflict because I
stripped it down to nothing, swapped vid cards with different AGP/PCI ones, and
tries many different slots. It just plain couldn't be seen. I talked with
another guy who saw the same thing... pci2.1 vs 2.2 or something? Don't know
exactly, but it's really subtle (except that it absolutely won't work... that
isn't subtle!)
-Cory
More information about the mythtv-users
mailing list