C2D hangs when CPU temp 60c +

[AllGamer]

So just want to compare some notes

have anyone noticed when your system becomes unstable an at what temp?

most of the OC that i've done works great, but once the CPU reaches 60+ then it starts to freeze

obviously more cooling will help, but just want to get a general idea how high temp your C2D has gone up to before it freezes.

 

[Noubourne]

First you'll need to tell people what you're using to measure your temps.

Most people use CoreTemp, and individual core temperatures can be read, as well as the temp of the whole CPU I believe. Tcase?

I think that Tcase usually reads significantly lower than the individual cores, so if you're locking at 60, it could be that you're hitting 70s on a core and it very well may not like that.

Of course, it could also be that it is not stable at the voltage and clockspeed you have set, so heat is not going to be the only issue here, which makes it difficult to set an exact temp where it stops working.

Someone around here linked a whitepaper for C2Ds I think, which included the shutdown temps directly from Intel. I thought it was significantly higher than 60C, but like I said, you may be reading a temp that is not accurate.

 

[joejccva]

I haven't had my C2D freeze, and I was able to get it up to 3.6ghz at 1.40v it ran fine and the load temps were around 60-61c. Ran Orthos blend test for a while with no problems, then I tried lowering the voltage to 1.35 and Orthos failed about 1 minute into testing. Upped the voltage to 1.38 and about 2-3 minutes into testing I got a BSOD. Haven't had a freeze yet, but I put it back to 3.4ghz at 1.30v with 4-4-4-12 timings on the ram at 1.98v, and it's run stable for about 11 hours now.

I need to get better cooling than the AC Freezer 7 Pro.

Edit: Also you should use the CoreTemp Beta .95.4 instead because it gives accurate temps.

 

[Noubourne]

Oh and I was also going to say that I do not believe a lockup is the result of hitting the C2D internal thermal protection - I think it actually shuts the whole machine down when that happens.

A lockup is almost certainly an indication that you are simply not stable, and not necessarily related directly to heat.

I load above 60C on all four cores when I'm stress testing, and I only seem to get Prime95 to fail (not lockups, just instability) when I start to hit 70. So I would venture to say you'd need to start being worried about temp as a factor more in the 70s than the 60s.

 

[AllGamer]

hmm.. in that case then you might be right about it being unstable, any idea what how to track it down to see which component is doing so?

I'm using RMclock i find it quite accurate.

it is just my observation but whenever it runs at full speed for a prolonged time, as in few hours over 60c then it sometimes will freeze or super slows down the whole machine,

stuff will actually continue to run, if i just wait it out, and cool off the machine (open side panel, blow big huge fan into it), but the freezes takes as long as 5 min to 30 min, or more.... so that is annoying enough to make me simply hit reset button and reload.

that's what makes me think it might be heat related.


oh, if i down clock to 3.3 Ghz instead of 3.5 Ghz then everything runs fine, and temp is usually below 59c

 

[SerpentRoyal]

You're pushing the CPU and/or RAM too far assuming there is sufficient voltage for NB and SB.

 

[AllGamer]

probably that's one of the many things i'm trying to figure out.

considering that heat is part of the problem, i'm not exactly sure if i should keep upping more voltage to the other components to make them more stable

which in the other hand will cause even more heat

These new ASUS mobo with heat pipes design are cool, but it has its down side, and that is it.

It causes the entire mobo to be hotter than usual overall, which explains why blowing more flesh air inside with the side panels off helps to bring the system back when it becomes "unstable" / hangs

which is really odd, normally if the system becomes unstable, it never comes back, you just have to reboot it

in this case, if i'm patient enough, it does comes back, but i'm not crazy or stupid enough to wait more than 15~30 min for the system to come back

i might wait up to 5 min, but anything 10min + is pointless, it is faster to reboot at that point.

i only did the wait test to see if they system actually comes back from that, and it did in both instances, although the wait was driving me nuts and up the wall LOL

so glad i've got multiple rigs to use, else i'd have been a real boring wait.

 

[SerpentRoyal]

C2D should be fine up to about 65-70C with an 85C Tjunction chip. P5B Deluxe runs HOT because of the 8 phase design. A good P35 board may be able to push the chip a little higher with the same Vcore. For example, I could only get up to 3.42GHz with the P5B-D. Moving the same CPU to IP35-E gives me 3.46GHz.

 

[thestain]

OK>... just to be abrasive right off the bat...

1) You need to upgrade your video card.

2) Please describe your current cooling set up.. what are you using for the cpu and for the video card, what type of case, fan settings.. that 14 dba has me thinking.. recipe to overheat..

A) Video card settings, temps at idle and load
B) At those slow fan settings, did you remove the filters?
C) Consider removing grill behind exhaust fans.. quieter and better air flow
D) If have already removed grill behind exhaust fans and filters and still hot..Grab a couple slot coolers... Blitzstorms are good.. and if you undervolt.. quiet.
E) get a fan blowing onto your motherboard.

and.. just my opinion, but why not run your awesome cpu at close to stock voltage and with your video card.. why on earth over-clock it so much? 3.0 is all you need for great gaming performance if you upgrade to GeForce 8800 or Radeon 2900XT or if you can wait the new GeForce coming out in three months.

If it was me and i went out and got the cpu you got.. I would have gotten better video card and better psu to go with it in a good case. What speed is your memory able to go in your set up? I would probably opted for better video card with more memory and used 2GB of system memory with it.. but faster.. at least PC8000

Good luck

The Stain