Re: Microsoft Keyboard Causes Bootup to hang

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From: Walmsley's (nik.walmsleySPAMKILL_at_btinternet.com)
Date: 05/21/04 

Date: Fri, 21 May 2004 09:25:29 +0000 (UTC)

Note replies........

"Tim" <Tim@NoSpam.com> wrote in message news:c8kgug$jlh$1@lust.ihug.co.nz...
> Nic,
>
> Please try and answer the questions below. Someone may be able to point
100%
> at the cause if you do...
>
> There are several things you could do to check earthing problems that
> include checking the resistance between the earth plug on the mains cable
> and the chassis on the PC - this should be zero ohms. Another is to check
> the mounting of the PCB in the case. Cases have light metal flanges aroung
> each IO socket on the rear. These are supposed to touch the socket mounted
> on the mobo. They are there to stop EFI / RFI leakage. Also check that the
> mobo has been mounted correctly. Most usually metal posts are supplied and
> they provide earth conduction to the motherboard.
>
I have no way of checking resistance! Sorry, not that technical.

> If you did not have the correct chassis plate (IE none as some people
have)
> and a problem with the earth and .... a the keyboards USB cable plugged
into
> a self powered hub then... all sorts of things could go wrong. Earth is
> there to protect things when things go wrong, so if there is no earth or
> partial earth then small amounts of current can go all over the place.
> Recently Paul stated something about PSU's pumping out a small flow to
earth
> being 'normal'.
>
It's a MESH PLC computer. I bought the K/B separately. I cost a small
fortune and looks very well put together.

> Have you tried the keyboard on another PC yet?
> Have you tried another one of these keyboards you know is working from
> another PC on your PC?
>
No other pC to try the K/B on, don't know anyone with this type of K/B

> When you plug in the keyboard, plug the keyboard directly into the PS/2
slot
> & plug the USB mouse connector into the PS/2 style adapter (green) into
the
> adjacent Mouse port. Do *not* run the mouse through an intermediate USB
hub.
> The keyboard socket is always in the corner towards the edge of the PC. Is
> this correct? If in doubt, pull the mouse out. If in doubt pull out *all*
> USB stuff & external peripherals until this problem is solved.

All peripheral disconnected and all combinations tried. The K/B is in the
correct socket, the mouse is in USB (But I've tried it in PS/2 and it works
ok, but doesn't solve the problem) No hub is being used. The system only
hangs when this k/b is connected to the PS/2 socket, regardless of any other
combination of peripherals.
>
> Check the keyboard plug does insert correctly. On several occasions I have
> had plugs and adapters (like the green one) where the plastic is too far
> down the sleeve to allow the plug to go in far enough - this is in part
due
> to the case. Checked?

It must be in correctly, I've pushed it right in, and all I need to do is
press the reset button on the machine, and it works fine. I assume this
wouldn't be the case if it wasn't inserted properly?

>
> Do not unplug / plug in keyboards at run time. It may still happen that
this
> can blow an internal motherboard fuse or worse, there is no fuse there any
> longer. (This used to be a problem, I don't know if it still is).
>
Never have/would. Thanks.

> You say the keyboard is an "Elite". Is this a bluetooth keyboard? If it is
> the story may be different.... as I have the "Microsoft Wireless Natural
> Multimedia keyboard" and am using that to describe everything..
>
Elite is not Bluetooth. it's wireless 105keys, with tilt-wheel on the left.
Lots of multimedia buttons too.

> HTH
> - Tim
>
>
>
>
> "Walmsley's" <nik.walmsleySPAMKILL@btinternet.com> wrote in message
> news:c8kacc$de0$1@sparta.btinternet.com...
> > Funy you should mention earthing, when I was disconnecting each
component
> > piece-by-poece, the audio Jack touched the metal at the rear of the PC
> > (Whilst it was off) and it buzzes the speakers. Also, when I very first
> > log
> > onto my screen name, right after the windows start-up sound has finished
> > playing, there is a little crackle from the speakers (Creative I-Trigue
> > 2.1).
> >
> > I accept that a bad earth could cause problems, but wouldn't this affect
> > wired & wireless alike?
> >
> > Just another thought.
> >
> > Nik.
> >
> > "Tim" <Tim@NoSpam.com> wrote in message
> > news:c8jmfm$s69$1@lust.ihug.co.nz...
> >> Hi,
> >>
> >> I have one of these & I know others that do too - no problems at all.
> >>
> >> 1st step: ascertain if there is a fault with your keyboard - try
someone
> >> elses on your machine & / or try yours on a machine with one already
and
> > see
> >> if it works.
> >>
> >> This will actually tell you a couple of things: problem with keyboard,
or
> >> problem with system. I have read of mobos with earthing problems at the
> > PS/2
> >> connector so you can't rule this out.
> >>
> >> Batteries? They're fine - been runnnig on one set of batteries since
last
> >> year - work all day every day. The batteries are NMH that are near
their
> > end
> >> of life. Battery life is substantially better than the original
wireless
> >> devices.
> >>
> >> - Tim
> >>
> >>
> >> "Walmsley's" <nik.walmsleySPAMKILL@btinternet.com> wrote in message
> >> news:c8i63l$e7q$1@sparta.btinternet.com...
> >> > Hi
> >> >
> >> > I've got a brand new PC (pre-built):-
> >> > P4 3.2ghz HT
> >> > 512mb ddr 400mhz RAM
> >> > Asus P4P800SE Mo/Bo (Latest BIOS)
> >> > 200GB S-ATA Maxtor Drive
> >> > Windows XP Home
> >> >
> >> > I've connected a new Wireless Keyboard and mouse from Microsoft
> >> > (optical
> >> > wireless desktop Elite) - LATEST drivers
> >> >
> >> > The Wireless hub has 2 cables running from it. 1 is for the PS/2
> >> > connection
> >> > to the PC, the other is USB for the mouse.
> >> >
> >> > When I connect the Keyboard to the PS/2 socket the system will not
> >> > boot.
> >> > It
> >> > powers up, and the H/D light flickers away, but it will not send
video
> >> > signal to the Monitor, and pressing the power button again does not
> > switch
> >> > it off (I have to hold it for the 4 secs to power down.)
> >> >
> >> > If I hit the reset button, the whole thing fires up fine,
> >> > If I connect a different Keyboard to the PS/2 it fires up fine.
> >> > I've tried changing the wireless channel and this has no effect.
> >> > If I disconnect the wireless K/B, power up with a different K/B,
power
> >> > down,
> >> > reconnect the Wireless K/B, it fires up OK on the FIRST attempt ONLY.
> >> >
> >> > A very bizarre problem!
> >> >
> >> > I'm hoping someone else out there has had this problem, and solved
it!
> >> >
> >> > Any advice on this greatly appreciated!
> >> >
> >> > Nik.
> >> >
> >> > --
> >> > =======================================================
> >> > Remove S P A M K I L L From my Email address to reply to me Directly
> >> > =======================================================
> >> >
> >> >
> >>
> >>
> >
> >
>
>

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