Motherboard Temperature

[lycorn]

Hi all!
Back from holiday, I put myself at work at the computer room and ended up with an issue I would like to share with you:
I´ve just performed a major upgrade on an old PII-400: replaced the mobo by a P4P800SE and the CPU by a P4 3.2GHz (Northwood, obviously...), plus some other minor stuff. ASUS Probe reports a CPU temp of 47C. That is good, as it is 10% overclocked, and running P95 (LL test) for nearly 20 hours now, with a room temperature of 26C. Now the interesting point: the mobo temperature is also 47C . The temperature has slowly risen overnight, and it is now stable at that value. The box has no side covers. I am really surprised with that value, expected it to be way lower. An Athlon XP1800+ (Palomino), mounted on a A7V266-E mobo, runs at 57C in the same room, but the mobo is at 32C.
Does anybody know what is precisely meant by "Motherboard Temperature" in ASUS Probe? Could it be the North Bridge? The P4P800SE as a passive cooler on it, which is a bit surprising.

[Mystwalker]

Originally Posted by lycorn

Does anybody know what is precisely meant by "Motherboard Temperature" in ASUS Probe? Could it be the North Bridge? The P4P800SE as a passive cooler on it, which is a bit surprising.

Typically, the sensor for the mainboard temperature is near the northbridge, as this is the hottest spot on the board. A passive cooling of course increases the Northbridge temperature, but as long as it doesn't overheat, I prefer it due to its greater silence...