Re: [linuxdc-dev]dnet client for Dreamcast

[Paul M. <le...@Ch...>]

On Thu, May 16, 2002 at 04:00:49PM +0200, edd...@wa... wrote:
> No URL of relevance, I'm sorry...
> For what I recall, this paper used the Dreamcast as an example of
> cooling with no room for regular air cooling. Sega had to devise a
> special system to fit in, I don't recall if it was water cooling or
> microfin cooling (the paper was talking of both).
>=20
> Either they have done their job correctly, or their CPU is heating a
> lot, considering the amount of heat being blown out on the right side of
> the DC after a few hours running.
>=20
> Having heard of no problem (what you confirm), I guess they just did
> their job correctly, and devised a smart way to cool the SH in very
> little room.
>=20
I don't know what kind of slashdot-induced marketting propoganda you've been
buying into, but the SH doesn't really have any cooling issues. It consumes
about 400 mW roughly when running along, and does so with no manner of
heatsink. Some of the older SH-3 processors were a bit more power hungry, a=
nd
the SH-5 certainly is moreso (especially in FPGA form), though I don't see =
how
any of that relates to the Dreamcast.

You can find other embedded boards (such as PMC cards) and other set-tops w=
ith
less space inside that run rather happily with both the SH7750 and SH7751 as
well without need of "special cooling".

The ARM also doesn't dissipate much heat either.

I've run my DC happily for months at a time, and have run SE7750 and SE7751
boards for roughly just as long as well, processor never even got warm.

Lay off the marketting crack and pick up a clue.

Regards,

--=20
Paul Mundt <le...@ch...>