Dimension 8400 cooling changes.

Archived from groups: alt.sys.pc-clone.dell (More info?)

Some things I noted after getting my hands on one of these beasts (someone
else's system):

1) Chassis ventilation increased through use of a lower "scoop" vent below
the front USB/Audio door (below the interior hard disk cage). Also virtually
all of the (formerly solid) area behind the front I/O door has now been
vented to nearly the full length and shape of the door itself, and the
intake area below the door enlarged. Also, there appears to be a *rear*
intake grilled area added below the CPU/Chassis fan, and above the video
card PCIex slot. The rear grill had formerly consisted of only the exhaust
area for the CPU fan.

2) Heatsink is heavily modified, over 4" tall, with shroud closely
encompassing it.

3) CPU fan, which did not appear to be a DaTech or NMB, seems to be larger
in diameter, and generates quite a lot of exhaust. To me, seemed as quiet
as the
43XX-83XX series.

4) Power supply is 350watts, main (P1) connector is 24-pin versus the old
standard ATX 20-pin. I assume this is prepping for the BTX form factor. ?

5) No IDE1 controller, just (4) SATA connects along with floppy and IDE2
controller. Lots more room for airflow as a result.


FWIW...

Stew