PC and Mac

After the recent article about smart air flow and stress testing I am a little worried about the temperature my CPU reaches when running CPU intenseive process (Video encoding particularly).
 
When running Handbrake the temperature reaches to 100oC at about 75% - 80% load. I'm a little worried about frying my CPU with temperatures that high as it states the Tj. Max is 100oC (I'm sure this is the maximum the CPU can take). During Idle sits at about 40oC.
 
Taking these tempuratures with Core Temp and running an Intel core i7 930 2.80 Ghz. not overclocked running the stock heatsink and fan that came with CPU. The case I'm using is a Coolermaster HAF 922. This has an intake fan at the front  of the case and exhaust at the top and the rear.
 
Thinking about to trying to reseat the cooler and get some more thermal paste on it but should I be considering a after market cooler? The case I have also has the option of installing a fan on the left hand side of the case (directly above the CPU) should I also install another fan?
 
Any help appreciated.
 
Gigolo

three digits is damn high even for 100% load. Are these temps from the mobo or a physical sensor?

mobo sensors I think
 
Update: Ran Prime95 and within 10 minutes was hitting the 100oC!!!!

First, that temperature is way higher than it should be. My CPU only gets to about 65C after running at 100% for over an hour, and that's using stock coolers and fans. I would look inside your computer to see if the CPU is getting blocked from the fans at all, or if the cooler has slipped or something odd like that. Did you build this computer yourself (I assume you did as you named a case from a third party)? Also, try running SpeedFan to see if you get the same readings and if one or both of your fans aren't running at full juice.

@Fripplebubby: Yeah built it myself. First one I've built in a couple of years. Going to open it up tomorrow tonight to check if anything is a stray, Ran speedfan and same results.

@Gigolo81: Did you try reseating your heatsink and see if that works? Or reapplying thermal paste

Yeah 100 C is approaching the thermal ceiling for an i7, and really you want it to be as far from that as possible.  Definitely check to see if the hsf is seated properly.  You may need to take the heatsink off, clean off the existing thermal paste from both the cpu and heatsink and reapply some new thermal compound.

@IzninjaFTW: Just home and reseated my CPU don't think I seated it correctly when I built it. (Feel like a sausage for that blunder) 
 
Going to try Prime95 to see how it gets on.
Thanks to Tested article about stress testing and Airflow I would never have noticed until it died on me. 
Also special thanks to the guys who replied above
 
edit: Spoke to soon still running in 90's oC when stress testing. Think I need some more thermal paste on it. Need to go get some tomorrow.

@Gigolo81: 
 
Don't go crazy with the thermal paste. If you use too much it'll start acting as an insulator.

I be careful with the thermal paste.
 
Have disabled some of the cores in the bios, running with 2 cores and only reaching 60 oC thought this was best rather than risk frying it. 
 
Again thanks for the advice

Personally, I gave up on stock Intel CPU coolers two system builds ago. One, they're underpowered even if you don't overclock. Two, the push pin mounting system is garbage. It's hard to get it in right, and even harder to tell for sure whether you got it in right. I wouldn't be at all surprised if your cooler isn't making full contact with the CPU.
 
Go for an aftermarket cooler with an under-the-mobo back plate/screw mounting system. It takes a bit more work, but the results make it well worth your trouble.

@Gigolo81: If you have enough room in your ring, there's a great heat sink + fan from Zalman, I put one in a gaming ring I assembled for a buddy of mine... he just loves it, because it's quiet under stress and keeps the system really cool. But, it's huge, pretty heavy, and a little pricy . But it's definitely worth it because you'll have some slack in case you'd like to overclock. No seriously, when I unpacked it, it looked like a (not that) small car radiator.

+1 for Zalman.
 
I bought a CNPS9500 for my Core2Duo 3 years ago. It still works just fine, but I figured I'd have to pay for another cooler when I built my i7 box. Turns out, Zalman actually makes socket 1156 and 1366 mounting brackets for their old coolers and sells them for $5. I thought that was a nice bit of customer service.

@Greg818:
Wow that's a big bit of metal. 
May just buy this if I have no luck with the thermal paste.  
Thanks

The Intel stock cooler on the i7 9xx are pretty miserable.  If you're looking for an aftermarket cooler then my recommendation is the Cogage True Spirit, which runs $40.

@Gigolo81: Just one thing about this beast, in case you'd decide to buy one, I don't remember the motherboard we chose, but it came very close to the ram sticks, not so close that it'd overlaped it, but it had about 6 mm of clearance. You night want to check the user's manual.

Just a quick update on my situation. 
 
Cleaned off the old thermal paste and applied the new paste as recommended by Arctic silvers website. Still running in the high 90's at 100% load. Have decide to get the Zalman Cooler suggested by Greg818. should be delivered tomorrow. 
 
Thanks again for your help at my hour of need.

The other thing to consider is that your reported temps are just way overstated.  Look to see if the chip is throttling itself, the i7s will underclock themselves before they cook themselves in most situations.  If you have a good probe thermometer, you can get a better idea of the heat, just be careful where you stick the probe.  That said, a good cooler will run quieter and cooler than a stock cooler for most people.  Consider something like the Corsair H50 if you are tight for space.
   

@Skip:  The Temperature Sensor (CoreTemp) I use shows the clock speed getting reduced as the temperature reaches the high 90's. Also it throttles itself when doing less CPU intensive process like web browsing at the moment running at 1.6 Ghz but switches to 2.8 Ghz as soon as I run more taxing programs, nice feature of the i7 (unsure if other Intel chips do the same). Cheers for the suggestion but got loads of room in my case. 
 
Considering making a video of me installing the new heatsink (when ever it arrives. Amazon Prime next day delivery Ha, ordered on Wednesday before 5pm and tracking with city link states it will be delivered Friday)
 
Update: Finally got the Zalman CNPS10X Flex heatsink and 2 x Arctic F12 120mm Fans. Set it up so 1 fan draws air through the heatsink and the other extracts the air to the rear case exhaust. This all fitted no problem at all to my Coolermaster HAF 922 case and on to my ASUS P6T6 PS Revolution (small overlap with one of the unused memory slots but not a problem just now).
 
Glad to report that at 100% load only running highs of 56 oC and at idle sits around 34oC. This is much better than the crazy temperatures it was running with the stock fan. 
 
Thanks again to everyone who posted suggestions above, if anyone has any questions let me know.