[iyonix-support] Re: Dead Iyonix
- From: Grahame Parish <grahame.parish@xxxxxxxxxxxxxxx>
- To: iyonix-support@xxxxxxxxxxxxx
- Date: Fri, 11 Mar 2011 21:20:18 GMT
In message <b95277b251.davehigton@xxxxxxxxxxxxx>
Dave Higton <davehigton@xxxxxxxxxxxxx> wrote:
> In message <51b270ef88riscos@xxxxxxxxxxxxx>
> Richard Ashbery <riscos@xxxxxxxxxxxxx> wrote:
>> In article <997e45b251.GrahameParish@xxxxxxxxxxxxxx>, Grahame Parish
>> <grahame.parish@xxxxxxxxxxxxxxx> wrote:
>>> In message <4D7A0763.4000303@xxxxxxxxxxxx> "David J. Ruck"
>>> <druck@xxxxxxxxxxxx> wrote:
>>
>>>> On 11/03/2011 11:09, Grahame Parish wrote:
>>>>> Last night I attached a self-powered native formatted external
>>>>> hard drive to a USB port and it froze the machine - this is not
>>>>> usually a problem.
>>
>>>> It may well have been. Self powered drives can draw too much
>>>> current from the Iyonix's USB ports. See if it boots up without
>>>> the USB PCI card present, you wont be able to do anything without
>>>> USB, but it will indicate if that is the extent of the damage.
>>
>>>> Cheers
>>
>>> Probably not the best term to use - by self-powered I mean that it
>>> has its own power, not dependent on USB power.
>>
>> I'm still a little confused - do you mean the USB hard-drive has its own
>> independent power supply or is it relying on the Iyonix to supply the
>> power? If it has its own power supply I am unable to see a reason for it
>> damaging the USB card but if the latter then I guess damage might have
>> occurred due to the fairly high current demands made by the hard-drive.
> USB devices are either self-powered or bus-powered. Bus-powered
> means they get their power from the USB; self-powered means they
> have their own power supply - they power themselves, most often
> from a wall-wart.
> Dave
This particular drive case came with a PS/2 port power take-off which
is permanently attached to the adjacent PC's keyboard socket. It gets
power even when the PC is off.
--
Grahame Parish
grahame.parish@xxxxxxxxxxxxxxx
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