-=PCTechTalk=- Re: Method to test hub?
- From: "rawhide101" <rawhide101@xxxxxxxxxxx>
- To: <pctechtalk@xxxxxxxxxxxxx>
- Date: Mon, 15 Jul 2002 10:01:02 -0400
Perhaps this will help. Cut to #4, #5 and #6 to avoid history.
1. System is Win 98 SE, HP 8565 with Belkin 4-port USB hub connected to rear
USB connector of computer; front USB connector isn't being used.
A new hard drive was installed as drive C; after a few hours all appeared OK.
Then a HP scanner was installed using the USB connector on back of computer;
sequentially, a Palm cradle, a digital camera and a FlashLink card were
installed using the front USB connector.
2. In MY COMPUTER, Camera and Flash link were assigned Removable Disk F and G
respectively when those items were installed. All worked OK. (The hdds are C,
D and E; CDRW is drive M; CD is drive N.)
3. Two days later the Belkin hub was connected to USB connector on rear of
computer. The four devices were quickly, and randomly, connected to the Belkin.
Some worked, some didn't.
4. An article or email scan-read a few years ago described similar problems
with a Mac or Apple. A printer had to be attached to either the closest, or most
distant, cable connector so all other peripherals on the cable could function
properly. The problem was blamed on electrical noise being generated by the
printer.
5. Hoping a similar approach might work here I disconnected all USB devices
from the Belkin; the scanner was reconnected to Belkin USB nearest the computer;
worked OK at "USB #1".
With scanner connected, the Palm cradle was connected to Belkin USB #2; both OK.
The card reader was connected to Belkin USB #3 Belkin and didn't work, but
connecting camera as #3 did.
Card reader was connected to Belkin USB #4 and all four devices work OK. Turns
out, the sequence that worked is the sequence in which the devices were
installed. Why? Don't know... don't have equipment to test the devices, and
don't want to disturb what's working.
6. I just now ran all four devices simultaneously to be sure all were still OK
after three weeks use. Scanned a page of text, synchronized Palm, and looked at
images in camera and on separate card, and read over this reply. All devices
worked "AOK".
Jim
-----Original Message-----
From: pctechtalk-bounce@xxxxxxxxxxxxx
[mailto:pctechtalk-bounce@xxxxxxxxxxxxx]On Behalf Of ~OoO~
Sent: Monday, July 15, 2002 1:07 AM
To: pctechtalk@xxxxxxxxxxxxx
Subject: -=PCTechTalk=- Re: Method to test hub?
You know... funny thing... cause mine does something similar... I have the
Belkin 4-port USB hub, and when I connect too many of the larger items, they
don't play nice together... some work, some don't, and the ones that don't work
occasionally DO work.. basically, it seems like they're fighting for power, but
they shouldn't be, cause the hub has its own power supply... and individually,
like you, they work fine.
So, maybe we have the same problem, but for now I haven't been able to fix it.
Let me know if you get successful in figuring it out.
..::[ Sir Troth ]::..
::::::::::::::::::::::::::::::::::::::::::::::::::
ICQ: 1717439
AIM: SirTrothX
MSN: SirTroth@xxxxxxxxxxx
YAHOO: SirTroth
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----- Original Message -----
From: Master NetLord
To: PCTechTalk - Freelists ; WinTips-Tricks ; WinXPHelp
Sent: Sunday, July 14, 2002 10:44 PM
Subject: -=PCTechTalk=- Method to test hub?
Any of your hardware guru's know a way to test a USB hub to make sure it's
working? After loading WinXP Pro, the hub doesn't work. It has a red light
on.....not the green light. If I disconnect it and connect individual pieces of
equipment, they work just fine. I also deleted the driver for the generic hug
and reloaded it......no help. Any way to check other than what I've done?
Regards from the
"Keyboard Cowboy",
Master NetLord
,,,,,
Ô¿Ô¬
Cincinnati, Ohio
Scottsdale, Arizona
«::::»¤«::::»¤¤«::::»¤«::::»
Sunday
07/14/2002
10:40:09 PM
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