Mobo as a heat source

[thegoonden]

It's slowly been occuring to me that my machine is exhausting a whole lot less heat since changing motherboards.

With the ASUS Striker II Extreme, when loaded with benches or games, the top fan on my Antec 900 breathed fire, really REALLY warm air, likewise at the back. The air through the upper fan was so warm that the top of the case in that area became warm to the touch.

With the Gigabyte, nothing I can ask it to do makes the air coming out of the top feel anything but frosty cool, certainly no hint of the case absorbing heat from it. The read fan still outputs a little heat (less though), because the TT blows right into it, dumping all the CPU's heat out that fan.

I'm quite surprised by this, I only wish I'd installed some temp sensors around the case when it had the ASUS in it, because without that, measuring anything now would be futile.


Anyway, take note, if building something that's not going to have a veritable orgy of airflow, you may want to look at an intel chipset rather than 790.

 

[zero-one]

Having an Nforce chipset is like having the Sun in your case! The X48 is hot but nowhere near as hot.

 

[thegoonden]

If the X48T is considered hot, then yes, I suspect the NF790 must use a fusion reactor somewhere.
(never looked at mobo temps when I had the 790, but on the X48, it sits at 34degrees, idle,load, everything. Never varies by more than 1 degree).

I wish I'd had my power meter a coupla weeks ago, the X48 draws just under 400W peak (with system as per sig) under full CPU/GPU load. The mind boggles as to what the 790 was sucking out of the wall to make all that heat.