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Northwood CPU - how hot is too hot?

post #1 of 22
Thread Starter 
I did some searches but couldn't find anything specifically addressing this -- I hope this isn't too much of a n00b question.

I have a 2.26 GHz Northwood that I can easily oc, and heat, not stability, is my current limiting factor. So I'm basically trying to figure out how high I can go. I've seen several different temps given as a "don't let it go over" temp. But it seems like maybe Northwoods are special?

The reason I ask is because some posts just say, "keep Intel temps under 60". Others say, "under 55 for Northwoods, under 65 for Pressy's". Finally, there's a data sheet I found online that shows that my specific chip breaks down at about 72, and suggests that a 5 degree margin of safety should be ok (which would be 67).

I'm guessing there's probably no definitive answer and it just boils down to how much risk you want to take, but is there an accepted rule of thumb that people around here follow?
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post #2 of 22
Most people would tell you that the temp on your Northy should not exceed 55C and that 1.7V is the max safe core voltage.
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post #3 of 22
Thread Starter 
Quote:
Originally Posted by z_one
Most people would tell you that the temp on your Northy should not exceed 55C and that 1.7V is the max safe core voltage.
Ok, thanks. I'm oc'ing with stock cooling right now and taking the FSB up to my memory speed has pushed my full load temps to 58C. My current case won't fit my Big Typhoon so maybe I'll back it down a bit until I get my new case and then give it another go.
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post #4 of 22
I would say keep it under 60-65C and you'll be fine. The Big Typhoon rocks though, I had one on my 2.6C and was able to run it steady at 3.4 b/c the BT kept it around 50C full load. Now I'm watercooled pushing 3.51 stably

As for voltage, you should be able to do a .2V bump and be fine. I wouldnt really want to hit .3V if you can't help it.
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post #5 of 22
No way, keep Northwoods below 50C if you want that chip to live for very long. Going over 50 is a good way to be a victim of Northwood sudden death syndrome. (I am not making that up)
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post #6 of 22
Quote:
Originally Posted by Lando95
No way, keep Northwoods below 50C if you want that chip to live for very long. Going over 50 is a good way to be a victim of Northwood sudden death syndrome. (I am not making that up)
Funny you say this..i have had a few mates with northwoods and ive had to sort out there colling because they were reaching 50 deg easily and nothing happend to theres.
post #7 of 22
I'd say 45C is a good limit...works in your magrin or error easily.

Also, get a BT, and save yourself your cooling worries in the future. Voltage, not heat has become my limiting factor...Northwoods Rule!
post #8 of 22
I'm running my 2.4GhZ Northy at...2.4! Under load it goes up to just over 50, and at idle in about 43. I'm getting an XP-90 with a 92mm panaflo next week! That should help me out. I think staying under 55 load is your best bet, and idle try your best to stay under 50!
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post #9 of 22
Thread Starter 
Hmm... well maybe I better go back down to stock speeds. With my current oc, I'm hitting around 53-54 during folding (which is 24/7 for me) and up to 58 under load. It'll probably be at least 5 months before I can afford a new case that will fit my Big Typhoon (since I blew all my disposable income on a Big Typhoon and a replacement mobo) so maybe at that point I can oc it up a bit.

I think it's interesting that everyone's talking about bumping the voltage -- I was able to oc as high as 3.2 w/o changing any of the voltages. But ofc the heat was so bad that I couldn't leave it there.
Quote:
Originally Posted by Kopi
I think staying under 55 load is your best bet, and idle try your best to stay under 50!
Under 50 for idle? Did you mean under 30? 50 seems awfully hot for idle -- I'm currently idling at 29.
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post #10 of 22
The junk rig in my sig runs at 39C idle and 60C full load at 2.97 with 1.7v to the core (so close to 3, but the mobo is maxxed out). That's on stock cooling in a crap case. All I chaged was my paste from stock to AS Ceramique. It's been running like this for 4 months now with no issues or instability.
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