Hi Mike,
In order to work with the technician effectively, you are going to want to
be closely involved with the work process. In this respect, you will ask
him what he thinks the problem is, or what his first actions are, for
instance if he recommends a full diagnostic.
But first, I would do some diagnostics myself before taking your equipment
to the technician.
IT IS A GOOD POSSIBILITY THAT THIS IS DUE TO MORE THAN ONE CAUSE (but all
related to your distro or drivers)!
If you are SMOKING or exposing the laptop to soot of any kind, you will
want to clean the laptop completely FIRST.
Everyone has issues with the WIRELESS switch on older equipment, just futz
with it, as I have never seen anyone have it STAY BROKEN? But this clearly
would be the technician stage....
Various diagnostic programs exist for linux, which you might consider
before spending money on the technician, to verify power supply, bus, and
CPU.
Intel Proc Diagnostic for Linux:
https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=19792
PowerTop:
http://xmodulo.com/2013/06/how-to-monitor-power-usage-in-linux.html
What distro are you running? Known issues with KDE and Chrome with
keyboard I/O are common (which I expect is the cause of your issues after
applying a patch):
http://forums.linuxmint.com/viewtopic.php?f=18&t=53398&p=306336&hilit=keyboard+stops+working#p306336
Spares are your friend, so try an external keyboard and see if the issue
follows that hardware (kernel driver) switch, then you can be sure that it
is application/distro based rather than hardware based.
As for fan control, there are various tools and again KNOWN ISSUES
(ArchLinux) with fancontrol under linux:
http://askubuntu.com/questions/63588/how-do-i-get-fan-control-working
Karmic:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/451337
You can use a live distro to rule out your keyboard issues - divide and
conquer.
Using OSI Level debugging, you go to the layer where the issue exists and
traverse up and down to adjacent layers, so clearly there is only the human
level on the other side of the Physical Layer 1, which is where the
problems present themselves, so the other direction would be the drivers in
linux.
You would rule out issues here with a systematic diagnostic, use of spares
and intelligent research.
On Wed, Sep 17, 2014 at 8:54 PM, Michael Havens <
bmike1@gmail.com> wrote:
> What can I tell the service tech so I don't sound too stupid?
>
> :-)~MIKE~(-:
>
> On Wed, Sep 17, 2014 at 8:03 PM, Michael Havens <bmike1@gmail.com> wrote:
>
>> oh.... I forgot to say that none of the other computers in my house seem
>> to have been affected though it may be that it needs to be power-cycled
>> and/or it may be something that only affects wireless and something got on
>> the phone lines (my home is on DSL).
>>
>> :-)~MIKE~(-:
>>
>> On Wed, Sep 17, 2014 at 7:50 PM, Michael Havens <bmike1@gmail.com> wrote:
>>
>>>
>>> Thank you so much for the detailed explanation, Jon. You know.... I have
>>> a laptop and I don't have a MAC but I read your troubleshooting
>>> non-the-less. I got to the last paragraph and realized something that I was
>>> told happened a couple of days ago that might be relevant. My room mate was
>>> home when this happened so this is second-hand knowledge. She was watching
>>> tv when the power went out then, a second later, there was a big POP down
>>> the street (a transformer maybe?). Everything still worked with the
>>> computer though; however, maybe it just needed to be power-cycled.
>>>
>>> Any other comments will be greatly appreciated!
>>>
>>> :-)~MIKE~(-:
>>>
>>> On Wed, Sep 17, 2014 at 6:56 PM, Jon Kettenhofen <subs@kexsof.com>
>>> wrote:
>>>
>>>> Hello Michael,
>>>>
>>>> I'm curious, did you buy this quad new or did you buy it used or is it
>>>> a work computer owned by a company? I get the feeling that you bought it
>>>> used.
>>>>
>>>> There's almost always a reason for failures and it's usually a problem
>>>> that can be isolated. If it's a part, it can be replaced. If it's
>>>> something else, it can be fixed.
>>>>
>>>> When stuff like this starts to happen, it may be one of three things: a
>>>> loose connection or a bad motherboard or a power supply. Apple builds
>>>> solid hardware but sometimes it gets abuse or just used in a poor
>>>> environment with too much heat and/or moisture or just takes a physical
>>>> beating - they are rather heavy. Also quads, I believe, have water
>>>> cooling. I have seen at least one report of leaks. That's usually easy to
>>>> rule out if there's no leaks.
>>>>
>>>> So where to begin? Well, the pedant is back!
>>>>
>>>> You may want to take some anti-static electricity precautions. First,
>>>> disconnect the Mac completely from all exterior cords, wires, etc. Lay it
>>>> on its side where there is plenty of light, a clean worktop area and a
>>>> Phillips screwdriver. As you have seen, it's easily taken apart, at least
>>>> the easy pieces need only your hands. Pull the fans out, take the video
>>>> and other cards out, unhinge and pull the memory sticks out and so on until
>>>> you are puzzled how to get the cooling shrouds out. (Don't do that.)
>>>> Inspect everything. Look for any corrosion. Remove as much dirt and dust
>>>> as you can with an air duster can (take care here, the these cans may
>>>> contain hydrocarbons that are flammable and they should not be inhaled!).
>>>> If you use an air compressor, be gentle and use lower pressure less than
>>>> 40psi. What you can't get out with air, start with a clean microfiber
>>>> cloth and wipe without generating static (i.e. don't rub hard). Make sure
>>>> all the connectors are clean and shiny before reassembling.
>>>>
>>>> We call this clean and re-seat the boards.
>>>>
>>>> Make sure you put the same memory sticks back into the same slots - it
>>>> usually matters or makes a difference. If you don't remember, read up on
>>>> it from a manual, usually online at Apple.com.
>>>>
>>>> Memory sticks are tricky because they often won't reseat properly
>>>> without strong pressure. First, make sure the middle slot on the memory
>>>> stick is lined up with the ridge in the bottom of the connector. The slots
>>>> are offset from the middle on purpose, they are only supposed to go in one
>>>> way. (Having burned out a memory stick by forcing it in backwards, I can
>>>> speak from experience! Won't do that again!) The way to handle this is to
>>>> use two hands, with thumbs or your choice of fingers at each end of the
>>>> board. Making sure the stick is aligned correctly in the connector; push
>>>> FIRMLY down until both ends of the connector snap into the stick. Main
>>>> logic boards are epoxy and embedded fiber, are very strong and can take a
>>>> little flexing without
>>>> hurting them. Same with memory sticks.
>>>>
>>>> Make sure the memory is seated well - it may take close inspection with
>>>> a flashlight. If the sticks are all the same size, then no stick should be
>>>> higher than the lowest one.
>>>>
>>>> OK, reassemble the computer.
>>>>
>>>> Testing the power supply can be difficult. It's easier with a common
>>>> desktop PC because the power connector is almost always on top of the board
>>>> and easily accessible. It's not enough to test a power supply out of the
>>>> computer because it won't be under load.
>>>>
>>>> Here's how an expert taught me to test the power supply on a desktop PC
>>>> (but not a Dell!) Take a meter and set it to DC volts. There will be a
>>>> pair of test leads with pointed ends to poke at things.
>>>>
>>>> You will push the points into the connector until it connects to the
>>>> metal of the connector sleeve. Connect the common lead to a black wire's
>>>> connector. Test all the colored wires with the positive (usually red)
>>>> meter probe. Here are the correct voltages for a PC:
>>>>
>>>> Yellow +12 Volts
>>>> Red +5 Volts
>>>> Purple +5 Volts
>>>> Orange +3.3Volts
>>>> Green don't test; this turns on the PC when shorted to black
>>>> White -5 Volts
>>>> Blue -12 Volts
>>>> Gray I think this one is for the power-is-on LED
>>>> Brown Not sure about this one
>>>>
>>>> The important thing is that the voltages are nearly correct when the
>>>> computer is powered on because that shows the power supply to be good when
>>>> under a load.
>>>>
>>>> One other thing - sometimes a part can acquire a static charge which
>>>> won't dissipate properly. The only remedy for this is to wait until it
>>>> discharges (unless you are a motherboard repair person).
>>>>
>>>> Things that have hurt my equipment is usually near lightning strikes.
>>>> Lost one treasured Mac to a lightning strike that hit the phone lines. Took
>>>> out phones for three stories above me. Mac did not fail right away but
>>>> eventually lost it (sniff :( ). Lightning strikes across the strike have
>>>> taken out a couple ethernet ports over the years even though my equipment
>>>> has always been on a UPS. Strong strike will generate an EMP which is
>>>> sometimes picked up by a network wire of a resonant length. Usually,
>>>> though, it's not serious but if the storm is bad, we'll turn off the
>>>> electronics until it's past.
>>>>
>>>> I apologize for the length of this, but you get the idea of the lengths
>>>> I go to fix things.
>>>>
>>>> Best of Luck and let me know how it turns out if you have the time,
>>>> As always, take care.
>>>> Jon
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 09/17/2014 06:27 PM, Michael Havens wrote:
>>>>
>>>>> first certain keys sometimes don't work unless I hold the key down and
>>>>> then after a time the character will appear (sometimes multiple times).
>>>>> So it was recomended I pop the keys off and clean under them. So I do
>>>>> and it doesn't fix the problem. No problem. I'll stick it under my
>>>>> table
>>>>> and attach wireless periphiels too it. Then I need to go visit my kids.
>>>>> So I figure I'll suffer with the keyboard problem. The day I left for
>>>>> Miami (at the airport) the hardware internet switch would not turn on.
>>>>> Then, after I arrive in Miami, I turn on the computer and a notice
>>>>> appears at boot saying that 'the cooling fan is not operating
>>>>> properly'.
>>>>> What problem do you think is causing this? I called my dad and he said
>>>>> it sounds like the hard disk is going bad. He also said maybe the
>>>>> keyboard controller (because of the internet switch).
>>>>> :-)~MIKE~(-:
>>>>>
>>>>>
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>>>>>
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>>>
>>>
>>
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