Fred A. Miller wrote:
Once again, a strange hardware problem has "hit." At least it's on my
own box and not someone else's. I've spent off and on the past 2 days
checking everything I can think of, searching the Net. as well, trying
to find the answer as to why an Epson Precision 4990 Photo printer can't
be configured by Yast.
It IS seen by the system, as I checked with hwinfo --usb and it's found,
so I know that it does respond to the USB port. I have the 3 iscan files
installed, which are supposed to provide FULL function for this scanner,
yet, when I use "edit" in Yast, an entry is entered for "epson" that
says the scanner can't be found. I double checked that it can't be used
with xsane and iscan. The is the first time I've not been able to
configure a scanner that is seen by the system and drivers are rated as
"complete" and listed in Yast.
I hope someone knows a "cure" for this! I'm using 10.3 64-bit.
Tanks in advance!
As with your problem a couple of weeks ago, I am unable to give you a
definitive answer but can offer this comment.
Only last night I read an article (about power supplies) which is
pointing out that with all the new CPUs and video cards most of the
problems (such as you may be experiencing) are/maybe caused by poor
PSUs. El cheapo PSUs -- and these do not necessarily include those which
are pretty high priced! - even though rated as being able to high
wattage demands may not be able to do so and therefore cause 'you' problems.
As a guide, I have been using the following table to work out what sort
of wattage "my" PSU should be able to handle:
COMPONENT
WATTS
MOB
15-30
CPU-
Low
end
20-50
High
end(1)
60-100
RAM
7W/128MB
PCI
card
5
Network card
4
Floppy
5
Graphics card-
Low
end
20-60
High
end(1)
60-100
CD/DVD/RW
10-25
IDE HD
10-30
SCSI - 10K-15K
10-45
To the TOTAL watts arrived at using above, ADD 30% to arrive at the
wattage needed to be handled by the PSU.
(Note1: these figures are applicable BEFORE the latest dual-and
quad-core CPUs and also before the latest high end video cards came into
being. Check their tech data to see what wattage they draw.)
While the above figures give you a ball-park figure for what wattage
your PSU should be able to handle, it then becomes a matter of ensuring
that you get a PSU which *will* be able to 'deliver' because many PSUs
(including expensive ones) claim one thing but simply do not 'deliver'
when it comes to the crunch.
Cheers.
--
Past experience, if not forgotten, is a guide for the future.
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