Hi!

>> I hear a relais click just after switching it on, the light on the
>> NVRAM card flashes once, as do those little red lights at the backside
>> of the MB (dialight? Whatever this is for).
>
>    Sounds like a bad PS, motherboard should be fine.

Yeah, now that I have opened the inner case and looked at the innards
of the PS, I could tell that the capacitators have gone - at least
there was some fluid leaking out of the 820µF ones, if not all three.
I suspect that means that they are out to meet their maker ;-{

>> After I removed ~20 screws I still can't get at the power supply,
>> though. Do I have to remove the six-sided stands on the MB as well?
>
>    To remove the motherboard yes, you have to remove the hex memory
>retainer risers (2) and the six hex standoffs for the TC slots.

Yupp, after I got the right tools, there wasn't a problem:

 However, I
>don't think you need to remove the MB to remove the PS. There appear to be
>only two allen screws at the front of the PS near the LED that hold it in,
>remove those and and it should come right out.

I had to remove the MB to get at the 7 screws holding the inner case
of the PS, three of them are right at the bottom of the case, on the
side of the fans, YMMV.

>The PS in my 5000/200 box is indeed a H7878-A

Yes, it's (or was?) a H7878-A in my 5k/240, too.

Thanks for all the help,
Uli
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