Re: MDD problem

[theleaddog]

I guess I didn't write well. There is the screw that goes through the
heatsink/cpu assembly and then there are several more screws that go
through the mobo...three IIRC. You'll notice there are a couple
chassis tangs at the edge of the board that it hooks or slides onto.
If you didn't remove the old thermal-conductive compound between the
heatsink and the cpu, you missed an opportunity. Pull up a flash file
and run it a few minutes to see how hot (Temperature Monitor.app) the
processors get. IF <143F, THEN okay, ELSE redo the compound.  :-)  The
dual processors are only useful if the application is written to use
them or you're multitasking. I think a flash video might use both
(Activity Monitor.app).

On Mar 3, 10:48 am, Jörg Duurkoop  wrote:
>
> Thanks for your input. I tried to remove the board, removed the
> heatsink and the one screw that is supposed to hold the mobo down and
> tried to slide the board out. It wouldn't budge so I left everything
> in place and only replaced the PSU and the fans, the main fan I have
> is a very quiet German Papst fan.

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Re: MDD problem

[theleaddog]

The DP board will fit and work. Probably a good idea to push the PMU
button (not called CUDA in the MDD) once you get everything back
together in the event that the former owner had some hardware attached
which you don't. The replacement is fairly straight forward: unplug
all cables/wires from mobo, remove all PCI cards, unscrew the board,
and slide out. IIRC, there are only a few screws but I think you also
have to remove a screw that holds the processor/heat sink assembly to
the board. Take a look at the "new" board to see if one has been
removed when it was taken out of its case. Here's some further
detailed instructions for a 867 but it's the same case so should steer
you in the right direction:
  

On Mar 1, 9:42 am, Jörg Duurkoop  wrote:
> Hi,
>
> I just got another MDD 1.25 Ghz MDD with a dual processor. Can I put
> the mainboard with the processors installed from the DP machine in my
> single processor MDD 1.25? Should I press the CUDA before I swap the
> boards? Anything else I should know before I do it? Is there a "how to
> do" with pics

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Re: MDD problem

[theleaddog]

> [Presses start button which then glows.
> "Bong" (Power On Self-Test) sounded.
> Message appears on monitor to restart computer.
> On subsequent attempts, start button extinguishes
> when released. POST "bong" not sounding.
> Red light on motherboard remains lit.]

Had the same problem. Replaced the Front Panel Board (FPB), aka power
switch, *and* the Power Supply. Didn't help. Motherboard looked like
new -- no burn marks, no swollen capacitors, not visible cracked
traces. The red LED on the motherboard was firing. IIRC the HDs did
not spin up either. Ended up having to replace both the motherboard
and the CPU as neither tested good. When one went it took the other
along with it, I guess.

I don't know how far POST goes before it gives up but the power light
going out on release is serious. Perhaps bad RAM or a bad RAM socket
could hang the POST. You might try starting with just one stick of RAM
and try that individual stick in each socket. Check each stick this
way. Doubt that's it though. :-(

Unless you have a source for very inexpensive replacements, your money
might be better spent on an Intel Mac inasmuch as Apple and third
parties will soon drop all support on PPCs. If you go the repair route
be sure you get the right mobo. Check for exact Apple part numbers
here: http://tinyurl.com/2luemx. It might be wise to push the PMU
(power management unit) button when you mate a PCU to an unacquainted
mobo before startup.

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Re: MDD problem

[theleaddog]

On Feb 11, 3:54 pm, Bruce Johnson 
wrote:
> On Feb 11, 2011, at 10:55 AM, yawg wrote:
> > I removed all cards, put the video card back in, removed all RAM, put
> > one RAM stick back in, removed all ATA cables exept for my startup
> > disk, removed the battery, pushed the CUDA a couple of times for 20
> > seconds, pushed the power button for 20 seconds, let the thing sit for
> > half an hour or more, put the battery back in and voilá: no more bong,
> > the light on the power button only stays lit as long as I push it,
> > doesn't matter how long I push it ...
> > So I managed to kill my MDD by following your suggestions?
>
> Nope, now you know it's a bad power supply. I now remember going
>though that hassle with a professors MDD about 6 months ago and
>got the identical results. Replacing the PS fixed all the problems.

Interesting. I had the same experience with a MDD DP 1.25 pre-2003
($1000 at the time). Replacing the PS didn't fix it. Took it to Apple
store. Genius said the processor was shot. Replaced the processor with
a good used one...no go. Figured when it went, it took out the mobo or
vice versa so I put in another used mobo with my old processor. Nada.
Replace processor with the good used one. Ta-da! I guess both items
were toasted. :-(

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Re: no content folder in date and time preference panel

[theleaddog]

Go to Finder:Help and type "administrator privileges".

On Feb 7, 2:41 pm, lphilen  wrote:
> How do you access the administrator privileges? When i click system
> preferences under the left apple nothing happens.
> thank you.

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