comp.os.linux.hardware Google Group

Re: Re (2): UPS with earth leakage device.

2010-01-07T18:41:17Z

Em Quinta 07 Janeiro 2010 08:27, no.top.p...@gmail.com escreveu:
You are confusing a UPS with a emergency electric generator; those are the
ones that start working after the power goes off.
A UPS needs to keep the power up without letting it go down even for a split
second.
The only switch a ups does when the power goes off is that it stops charging

Re (2): UPS with earth leakage device.

2010-01-07T08:27:12Z

OK, I don't want to influence original contributions, by giving my
full present analysis. But the failure process takes a finite time.
And I insist that the UPS can only acts AFTER the beginning of the
mains 'failure process'.
Can you contribute more than "wrong" ?
---
No, AFAIK the earth-leakage -detector works by measuring

Re: UPS with earth leakage device.

2010-01-06T20:47:23Z

Without checking it the consultant could not have had a clue...
but sure a UPS can fail just like any other device
but if the problem was traced to the UPS
chances are it was simply not grounded properly
better get someone who knows what they are doing
to check the wiring etc

Re: UPS with earth leakage device.

2010-01-06T19:25:56Z

Em Quarta 06 Janeiro 2010 17:23, no.top.p...@gmail.com escreveu:
wrong.

UPS with earth leakage device.

2010-01-06T17:23:26Z

In my building someone get earth-leakage faults in the middle of the
night. A consultant said that it's caused by UPS/s.
But I can't understand since the UPS is designed to switch on AFTER
the mains failure. So how can it cause the mains failure.
== TIA.

Re: SciFi-like virus stories ?

2010-01-06T12:43:19Z

It's not simply booting. But simply plugging in the USB drive, that
allows the virus to infect a computer.
See ArameFarpodo's post.
I disable auto-run on my computers for all external drives
(network mounted, USB, etc.)
One of the easy ways to hack into a computer facility is to drop
infected USB drives in the parking lot. A lot of people will pick them

White balance on built-in webcam

2010-01-04T08:49:30Z

For some reason, after recent update I suspect, the automatic white
balance is no longer works on my laptop's webcam: seems to be fixed on a
daylight settings, so I get yellowish cast when light source is
tungsten/halogen bulbs. Also, judging by the [very light] flickering,
it's defaulted to the US frequency of 60Hz, as opposed to 50Hz here in

Re: SciFi-like virus stories ?

2010-01-05T01:32:59Z

Em Terça 05 Janeiro 2010 00:07, no.top.p...@gmail.com escreveu:
The autorun in windows uses a file named (allways) autorun.inf in the root
of the volume (cd, dvd, usb, sd card , etc)
When you insert a cd, dvd or usb stick, windows gets a notification and look
for that file, if it finds one, opens it and inside are several instructions

SciFi-like virus stories ?

2010-01-05T00:07:22Z

Although, learnt at the 8-bit device level, I KNOW computers
down to the transistor level. So I get very annoyed and insulted
by these art-students and journalist's stories.
OK, while writing this, I've realised that eg. the facility :"boot from
a USB, or any other device" is where the virus could be introduced.

Re: PPC/RISC HARDWARE STILL ON!!

2010-01-04T18:41:37Z

Nevermind the FixStars PowerStation. These are better:
[link]
[link]

Re: problems mounting external USB HD

2010-01-04T14:21:13Z

Monitor the output of dmesg immediately after connecting it with
the USB cable and you should see some identifier for the disk.
For example,
[ 8.796141] usb-storage: device scan complete
[ 8.804434] scsi 6:0:0:0: Direct-Access WD 10EAVS External
1.75 PQ: 0 ANSI: 4
[ 8.897221] sd 6:0:0:0: Attached scsi generic sg5 type 0

Re: problems mounting external USB HD

2010-01-04T03:16:20Z

In article <4b30dce4$0$36587$edfad...@dte xt01.news.tele.dk>,
My USB HDs don't spin down on umount, so while possibly undesirable, that
is not unprecedented. I borrowed one from my friend (no idea what it is
on the inside, besides 750GB) that does a force umount if USB becomes
unpowered (e.g. if I turn off the monitor through whose USB port it's

Re: Mini ITX motherboards - Intel Atom

2010-01-02T19:32:35Z

I saw a comparison of low power CPUs some months back in the German
magazine C't. The way it panned out (from memory) was that the Atom
had more power than the C3, but that the Atom was really held back by
the crappy chipset Intel were using. Slow and power hungry. This was
to prevent the Atom from invading the Celeron's market.

Re: Mini ITX motherboards - Intel Atom

2010-01-02T16:27:22Z

<...>
Tom's Hardware has a detailed article comparing Atom's vs. Core 2 Duo:
[link]
Atom's 8W TDP seems attractive, but its impact is somewhat muddied when
comparing the total power required "at the plug." Check the graphs on
page 7 (from the ref) showing total power comsuption.

Re: Mini ITX motherboards - Intel Atom

2010-01-01T16:56:13Z

The via cpu's are basically souped pentium I's. They do not have
instruction ordering introduced with the pentium pro and seen on
pentium II and later processors.
Do you know if the atom has such an architecture?