USB - UPS problem

  • Thread starter Thread starter DL
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DL

Winxp updated, mobo drivers, bios updated - clean installation following
installation of new hd's some 3 months ago
Recently purchased Eaton Nova AVR 1250 ups to replace an old faulty unit
(different make, but also USB)
USB connected direct to mobo, the ups load level is only 16%
Unit constantly loses its connection, usually it re-enables after a few secs
but occassionaly the only way to reconnect is by rebooting PC (re setting
usb to same or other port has no impact)
If it loses connection then obviously I dont have proper ups protection, ie
no shutdown sequence
Acording to Eaton tech 'there is an inherent problem with winxp & win2k and
USB connection' and I should 'try' a usb pci card, and they wont except an
RMA. This sounds a bit of cock & bull to me
Keybd/wireless mouse, scanner and printer are the only usb devices
connected, mobo has 6 usb connectors No event err's
 
DL said:
Winxp updated, mobo drivers, bios updated - clean installation following
installation of new hd's some 3 months ago
Recently purchased Eaton Nova AVR 1250 ups to replace an old faulty unit
(different make, but also USB)
USB connected direct to mobo, the ups load level is only 16%
Unit constantly loses its connection, usually it re-enables after a few
secs but occassionaly the only way to reconnect is by rebooting PC (re
setting usb to same or other port has no impact)
If it loses connection then obviously I dont have proper ups protection,
ie no shutdown sequence
Acording to Eaton tech 'there is an inherent problem with winxp & win2k
and USB connection' and I should 'try' a usb pci card, and they wont
except an RMA. This sounds a bit of cock & bull to me
Keybd/wireless mouse, scanner and printer are the only usb devices
connected, mobo has 6 usb connectors No event err's
Click to expand...
Go into Device Manager, and under Universal Serial Bus Controllers, open
each of the listings that have "hub" in them. Look under the Power tab and
see what the requirement is for each. If you have any that are needing 500mA
or more, that's likely where your problem lies. If so, you might try using
an external powered hub. I ran into a similar problem with an Xbox
controller hooked to my PC. It draws 500mA and whenever I fired up a game
that used it, my sound (USB sound card) came out like the speakers were
shredded. If I used a different controller or just unplugged the Xbox one,
everything was fine. If you have a spot on the UPS for the power supply for
the external hub, you can plug the USB cable from the UPS into it. If not,
plug some of the other devices into the hub, and the UPS as you have it now.

P.S.- I have a PCI USB 2.0 card that I had tried before I got the powered
hub, but that made no difference. The 7-port hub was $10 through Amazon and
has solved the problem I had.

SC Tom
 
DL said:
Winxp updated, mobo drivers, bios updated - clean installation following
installation of new hd's some 3 months ago
Recently purchased Eaton Nova AVR 1250 ups to replace an old faulty unit
(different make, but also USB)
USB connected direct to mobo, the ups load level is only 16%
Unit constantly loses its connection, usually it re-enables after a few secs
but occassionaly the only way to reconnect is by rebooting PC (re setting
usb to same or other port has no impact)
If it loses connection then obviously I dont have proper ups protection, ie
no shutdown sequence
Acording to Eaton tech 'there is an inherent problem with winxp & win2k and
USB connection' and I should 'try' a usb pci card, and they wont except an
RMA. This sounds a bit of cock & bull to me
Keybd/wireless mouse, scanner and printer are the only usb devices
connected, mobo has 6 usb connectors No event err's
Click to expand...
Have you tried connecting to a different USB plug on the motherboard and
tried a different USB cable? Both are unlikely solutions but easy
diagnostic activities. "Cock and Bull" is probably correct. Have you
tried to return UPS to place of purchase? If they will accept return,
that is certainly easiest fix.
 
Yes, tried different ports / cable
The supplier is being sort of tardy at the mo, will give them a kick on
Monday
 
Hmm;
There are 2 device hubs, one of which shows 6 ports, 4 used, scanner 500Ma,
Cordless 50mA, printer 2mA, and ups 20mA - It does say 500mA available per
port
The other 10 ports avilable (2 ports on the front) I'll swap the ups to
this, see if anything changes
 
Unplug your scanner for a while and see if the problem comes back. If not,
then it's the culprit.

On a side note, what is the USB cable from the UPS being used for? Is it for
shutdown notification? What software was installed for it? Maybe the problem
is the fault of the software?

SC Tom
 
Its the Eaton software that controls the shutdown on pwr failure. Its also
added as a tab in Control Panel>Power Options, so I guess its fully
complient, my last ups wasnt shown here.

Am testing right now
 
Winxp updated, mobo drivers, bios updated - clean installation following
installation of new hd's some 3 months ago
Recently purchased Eaton Nova AVR 1250 ups to replace an old faulty unit
(different make, but also USB)
USB connected direct to mobo, the ups load level is only 16%
Unit constantly loses its connection, usually it re-enables after a few secs
but occassionaly the only way to reconnect is by rebooting PC (re setting
usb to same or other port has no impact)
If it loses connection then obviously I dont have proper ups protection, ie
no shutdown sequence
Acording to Eaton tech 'there is an inherent problem with winxp & win2k and
USB connection' and I should 'try' a usb pci card, and they wont except an
RMA.  This sounds a bit of cock & bull to me
Keybd/wireless mouse, scanner and printer are the only usb devices
connected, mobo has 6 usb connectors No event err's
Click to expand...

Are all the USB ports off the same Root Hub? The description seems to
indicate that the Root Hub may not be able to handle all the USB
traffic correctly.
 
Currently testing on a new hub

Winxp updated, mobo drivers, bios updated - clean installation following
installation of new hd's some 3 months ago
Recently purchased Eaton Nova AVR 1250 ups to replace an old faulty unit
(different make, but also USB)
USB connected direct to mobo, the ups load level is only 16%
Unit constantly loses its connection, usually it re-enables after a few
secs
but occassionaly the only way to reconnect is by rebooting PC (re setting
usb to same or other port has no impact)
If it loses connection then obviously I dont have proper ups protection,
ie
no shutdown sequence
Acording to Eaton tech 'there is an inherent problem with winxp & win2k
and
USB connection' and I should 'try' a usb pci card, and they wont except an
RMA. This sounds a bit of cock & bull to me
Keybd/wireless mouse, scanner and printer are the only usb devices
connected, mobo has 6 usb connectors No event err's
Click to expand...

Are all the USB ports off the same Root Hub? The description seems to
indicate that the Root Hub may not be able to handle all the USB
traffic correctly.
 
Well that ran for about 24 hrs before it failed

DL said:
Currently testing on a new hub



Are all the USB ports off the same Root Hub? The description seems to
indicate that the Root Hub may not be able to handle all the USB
traffic correctly.
Click to expand...
 
Well that ran for about 24 hrs before it failed
Click to expand...

Root Hubs are the primary port off the main board (aka motherboard) of
the PC. These are usually "paired" in twos and if the other Root Hub
"port" is busy, then you will have problems.

Also, was the "new" hub "self-powered?"
 
It was a seperate hub on the mobo connected seperately to the other hub, IRQ
not shared between the two controlers

Well that ran for about 24 hrs before it failed
Click to expand...

Root Hubs are the primary port off the main board (aka motherboard) of
the PC. These are usually "paired" in twos and if the other Root Hub
"port" is busy, then you will have problems.

Also, was the "new" hub "self-powered?"
 
It was a seperate hub on the mobo connected seperately to the other hub, IRQ
not shared between the two controlers





Root Hubs are the primary port off the main board (aka motherboard) of
the PC.  These are usually "paired" in twos and if the other Root Hub
"port" is busy, then you will have problems.

Also, was the "new" hub "self-powered?"
Click to expand...

Several USB devices are not supported unless directly connected onto a
main Root Hub port. Have you tried a direct USB port from this PC?
 
By hub I meant the mobo hub, the mobo shows 2 independent usb controlers
(hubs)

Anyway the supplier has now agreed to RMA me a replacement

It was a seperate hub on the mobo connected seperately to the other hub,
IRQ
not shared between the two controlers





Root Hubs are the primary port off the main board (aka motherboard) of
the PC. These are usually "paired" in twos and if the other Root Hub
"port" is busy, then you will have problems.

Also, was the "new" hub "self-powered?"
Click to expand...

Several USB devices are not supported unless directly connected onto a
main Root Hub port. Have you tried a direct USB port from this PC?
 
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