Asus Motherboard Temps (please help!)

I have recently put together my first pc. It has an Asus m2r32-mvp motherboard, AMD 6000 x2 3Ghz chip, 2GB OCZ ram, Radeon 1650 pro graphics card.
PC probe reports low CPU temps, which I understand is expected of my chip, and my motherboard was peaking at 45 celsius, now I have moved to a warmer area and my motherboard is rising to 46 celsius when idle, when burning a dvd it has risen to 49, I daren't benchmark my pc now. PC probe's default alert value for the motherboard is 45-should I be concerned. (I have checked these temps in BIOS)
I am unable to find any information about the operating temps for my motherboard, and I cant contact Asus through their website as I dont have all the required information. (I'm in the uk too so phoning them is quite undesirable!)
I only have, and have space for, one exhaust fan at the rear. I am considering investing in another case.
Also, another much less important issue, whenever PC probe starts up or any settings are applied my wave volume is muted, slightly annoying!
If anyone could advise me it would be greatly appreciated!
Thanks
Sam

 

You definitely need better exhaust.

I think PCProbe has an alert tone volume setting - that might be adjusting your Wav volume - try turning up the alert volume and see if that affects it.

 

Motherboards with heatpipe cooling run hotter than those with active cooling.

My motherboard temperatures did the very same thing with good cooling. I did call Asus, and they told me it was fine; stack cool2 motherboards run hotter. Passive cooling just isnt the same.

PCProbe's default settings do not take into consideration stack cool 2 boards.

 

Thanks, I think I'll stick with it for the time being, I haven't encountered any problems so far which appear to be temperature related. I'm not a gamer but do occasionally put quite heavy loads on my pc. I did experience access violation errors in PC probe whilst using VLC player (effectively forcing restart) on two consecutive days whilst watching two parts of the same documentary (same source) so I guess that could've been due to the coding of the media (also VLC player seems unstable).
Might have to look into better cooling when summer comes around or when I win the lottery.
Thanks again,
Sam