ASRock motherboards OK?

RayLopez99 wrote:

OK thanks Paul. From the picture, I did not realize the South Bridge and North Bridge controllers needed such big and fancy passive heat sinks, that's interesting. The South Bridge controller is a different design from the North Bridge, maybe one does more work than the other and gets hotter (the North seems to do more work, but without Googling I don't know).

And I see some 'inductors' (the gold 'rings' in the upper right of the mobo), which I understand in electrical engineering should be avoided (integrate, don't differentiate, if you know your calculus and differential equations), since L's are bulkier than C's.

RL

To do energy conversion, the inductors are used for
energy storage. There is a single inductor on the 12V
side, and that prevents feeding switching noise back
into the ATX power supply. Multiple phases are
used on the secondary, to "share" the conversion process,
share the heat and so on. The material used in the
phases, is bulked up if there are few phases. For
example, the converter on my AthlonXP board (probably
intended for 65W loads) used only two phases running at
100KHz, but the inductors were a bit larger as a result.
The modern boards with eight or sixteen phases, some of
those, the phases are kinda puny. But you still need to
dump the heat into one or more VCore heatsinks. One purpose
of the high-phase-count designs, is to supply 200W of
power for some poor overclocked CPU. There have
been designs before, that got so hot doing that,
the solder melted :-)

The heat in the Northbridge, is a function of the
stuff in it. At one time, you might have had the
memory controller and a GPU, or PCI Express ports
for video, and the Northbridge could use 15W+ in
a case like that.

The Sourhbridges vary too. There have been a few at
the 2W level, and those didn't get a heatsink. The very
latest boards, there is a *lot* of bandwidth in the
Southbridge, and even though low amplitude pad drivers
don't burn too much power, it adds up if you have 24 channels
doing that at the same time. These are the newer PCH
Southbridges, that have as many as three NVMe x4 ports
on the bottom. That's bound to use a bit of power, as
would running six USB3 ports. The heatsink has to be
selected based on the motherboard remaining stable
with a crazy set of hardware connected.

Paul

On Mon, 20 Feb 2017 03:44:00 -0500, Flasherly wrote:

| If I want something, either I'm circumlocutions or I identify myself
| from behind all that. ...Different tools, browsers suites, ways and
| means for different occasions.

I always keep a disposable ID and email address with nothing linking to me that I use
for anything I don't log onto regularly and trust. If there are problems, I simply
drop that ID and email and create others.

Larc

On Mon, 20 Feb 2017 12:18:13 -0500, Larc
wrote:

I always keep a disposable ID and email address with nothing linking to me that I use
for anything I don't log onto regularly and trust. If there are problems, I simply
drop that ID and email and create others.

Larc

Got something like that on mine, too. It's an email killer. Neat how
it works by an exclusive principle -- kills/deletes everything not
defined for a friend. Mostly kills ... friends, what's that? Business
representatives act as if they expect their email is a valid means to
reach me. I explain that doesn't work. Email turned from a
convenience into filling mailboxes with spam from automated
advertising - how can they seriously say that? There's an uneasy
quiet and I offer to help work out something that doesn't involve
email. Thankfully most premier WEB business presences already know
that, what's intrusive and the reason they've a premier standing to
reflect it. Whenever possible, those few, largely the WEB presence --
I stick with, running comparisons for a business transactions within
names readily recognizable.