New Mac Mini running very hot?

I have just bought (few days ago) a new Mini 2.0GHz with standard 1GB RAM and 120GB HD and it's my first Intel Mini so I have no reference for this behaviour.
When I boot the system up it shows CPU at around 57-59 C temperature and 1-2% load, so basically idle state.
If I get it to do things, it will climb up to 78-80 C at 80% load. Did not run at 100% load yet, but 78 C feels pretty hot as it is.
The bottom of the unit is very hot and the sides and even top are warmer than what I'd expect the Mini to be.
Is this normal behaviour or should I return this unit and get a different one?

3dluvr wrote:
Thanks for all replies, I guess I'll just have to settle that it runs this high.
Though some people have told me their Minis are cooler than 57 C idle, I tend to believe Apple does not take much care when applying thermal paste or seating the heatsink onto the CPU. I have read way too many reports supporting this to be the case when people opened their Minis and checked...
I have same problem that you with new Mac Mini 2GHz and 2GB of Ram and 160GB of HDD.
Yesterday I run aMule, and I can see CPU B was 79º and CPU A 68º with 50% or 60% of load and I was afraid of it.
Do you use your Mac Mini to full load and it works well? Did you try to apply a new thermal paste?
Thank you and sorry for my bad English

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☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
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Step 1
Triple-click anywhere in the line of text below on this page to select it:
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PR () { [[ "$o" ]] && printf '\n%s:\n%s\n' "$1" "$o"; }; { o=$(sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|calendarse|cups|dove|isc|ntp|post[fg]|x)/{print $3}'); PR "Loaded extrinsic daemons"; o=$(sudo defaults read com.apple.loginwindow LoginHook); PR "Login hook"; o=$(sudo crontab -l); PR "Root cron tasks"; o=$(syslog -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|find tok|n Cause: -|NVDA\(|pagin|timed? ?o' | tail | awk '/:/{$4=""; print}'); PR "Log check"; } 2> /dev/null | pbcopy; echo $'\nStep 2 done'
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I find my old school computer self coming from the 4 color Amiga Desktop Icons and Apple color palette in yon days of old, only to find countless reviews about Yosemite's "eye candy" problem. Who cares? So far, in the reviews I am reading a bunch of Blah, blah typing. Know one has given or provided conditions in which they installed Yosemite and type of Mac, including, but not limited to, the compatibilty of the Apps they have installed. So, I am here instead of blogging on Apple's Yosemite review page.
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jndupuis1 wrote:
I've only had this Mini since August. I have had to update Safari twice, apps once and OS X once. A bit excessive for being so new. ( Well, Microsoft was worse about updates ). You all are helpful in the support community. I'll quit reading reviews now and ask all of you the meat and potato questions.
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Mac troubleshooting: What to do when your computer is too slow | Macworld

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