"Jan Alter" <bearpuf@verizon.net> wrote in message
news:hvj5vf$kj9$1@news.eternal-september.org...
> "peter" <peter@nowhere.net> wrote in message
> news:hvj2a9$d0q$1@speranza.aioe.org...
>>I suggest that when you put the machine back together you
>> leave everything the same.....do not install the HD tuner until
>> you are sure everything is as before.
>> Then uninstall the drivers for the Networking card and reboot.
>> Test to make sure the onboard Network works..
>> Then shut down and install the HD Tuner and reboot to install the
>> drivers for the Tuner.
>>
>> Have the System running for a little while before you change motherboard
>> in order to "heat" up the Thermal Paste that is in between the Heatsink
>> and the CPU
>> It makes it easier to disassemble. You will need to clean off the old
>> Thermal Paste
>> and re apply a new very thin layer before assembling again.
>>
>> peter
>>
>> --
>> If you find a posting or message from me offensive,inappropriate
>> or disruptive,please ignore it.
>> If you dont know how to ignore a posting complain
>> to me and I will be only too happy to demonstrate 
>>
>>
>> "mobilelawyer" <me@mine.net> wrote in message
>> news:r2sp16dsupd6vlvfcdehe3fhhj7400pptu@4ax.com...
>>> Several months ago, a power surge knocked out the onboard networking
>>> for my three year old HP d4990y. I installed a PCI networking card but
>>> now I want to free up that slot to install an HD TV tuner. I don't
>>> have any slots left.
>>>
>>> I have bought a new motherboard from china that is the HP OEM board in
>>> my machine, and I want to replace my MB with it. It is the same model
>>> number and series, and I have a 30 day warranty, so I have got to get
>>> busy in case the board is defective.
>>>
>>> I have replaced a motherboard years ago, but I have never pulled a
>>> processor. HP site has a page that shows how to do it for their
>>> machines.
>>>
>>> Assume I succeed in replacing and getting everything hooked back up,
>>> and am ready to boot up, (and assuming the board is not defective)
>>> what problems can I expect?
>>>
>>> Of course, the desired result is that I boot up to my desktop, Win7
>>> shows up as activated and registered, and all hardware installed, just
>>> like before.
>>>
>>> How many have done this, and, if you have, what caveats or suggestions
>>> do you have for me?
>>>
>>> And thanks in advance for your help and advice.
>>
>
> I would have suggested the same thing as Peter to run the current computer
> for 15 minutes or so to heat the HS compound 'til it's soft. Shut the
> computer off and then go for the change. Additionally in preparation, I'd
> take a couple of pictures of the mb as it currently sits (to give you
> confidence that it will all go back the same) and you might even have
> someone film as you disassemble if you're really paranoid. However, most
> of this is pretty basic stuff,
> What I would make an effort to do is on your current computer go into
> the bios settings and write them down as the new board may have default
> settings that may not be the same as your current set up. . When you
> replace the board and you boot up go into the bios to make sure everything
> has been set the same as before.
> As Peter mentioned with the cpu; make sure you have some additional HS
> compound available. After you have cleaned the cpu of the old and replaced
> it in the socket apply a thin layer of new compound before reseating the
> HSF. Avoid rushing any of this and make sure you grounded yourself before
> beginning.
>
> --
> Jan Alter
> bearpuf@verizon.net
>
Both Peter and Jan have pretty much hit the nail on the head. Only things I
would emphasis is:
1. Make sure you ground yourself EVERY time you reach inside the case to
touch something. I developed the habit of touching the case frame with the
back of my hand and that has worked for me. Others swear by the ground strap
worn all the time. Take your pick, but make sure you do something so as not
to discharge static electricity into a component.
2. When removing the motherboard, make sure the case is in a position that
the mb is flat so you can pick it straight up. Do this gently and look for
any attached grounds or insulating washers, which are usually brown, on any
of the contact points. Gently turn mb over and look for insulating washers
there, if you find any make sure you install them in same place when
installing new mb. Some mb's have to be insulated at certain points in order
to work correctly and some have extra grounds at certain places. Both these
conditions are the exception rather than the rule so don't worry a lot about
this, just go slow when removing mb.
3. Make sure you understand how to r&r the processor so as not to bend any
pins, get it in the correct position and etc.
4. Make sure you understand how much thermal paste to use, too much can be
just as bad as too little. I always used to put it on thin and add more
until I could no longer read through the paste, assuming you're using white
paste. If you can read through it's too little, if you have way more than
enough to cover writing you have too much and it will act as a thermal
barrier.
Don't let anything I've told you scare you in any way other than to make
sure you take the time to read to the point you know what steps to take.
HTH,
Dave
