Very hot temps while running prime95

Hello,
Just received my Dell XPS 15 2630QM yesterday and I'm in the processes of running memtest, 3dmark and prime95 but I am a little bit concerned about running for a full 24h because of the very hot temps.

I ran prime95 in torture mode for 1.5 hours the temps spiked to 85-92c on all 4 cores and stayed there the entire time.
After stopping the stress test the temps returned to 60c almost immediately.
"Normal" operating temps seem to be around 55c for me.

Should I be concerned? Is the XPS going to handle running this for 24h without melting?

I am using speedfan as well as coretemp to monitor the temps and a targus chillmat for extra cooling.

Running prime95


immediately after stopping prime95

 

The temps are fine as long as the laptop isn't painful to the touch (i.e. palmrest isn't "burning" hot). There's no need to run the test for 24h, the laptop will hit it's max temperature somewhere between 0.5 and 2 hours, assuming constant ambient temperature.

(Also, I'd recommend doing Prime and Furmark at the same time for heat testing)

 

Thanks for the reply.

The reason I want to run for 24h is to see if there are any BSODs etc

 

Mine hits in around 90-92C peak as well after 30 min. I have the 17...so yea, you're doing alright. Prime is a rather unrealistic loading test as you know, I wouldn't be concerned.

99% of stability issues can be found in that time (30 min) in my experience anyway.

 

Running prime 95 on 8 threads/4 cores for 30 minutes causes my XPS to each 95c....

I don't think you'll usually load all your cores 100% for an extended amount of time.

 

Thanks for all the feedback.

Of course I realize the chances of me putting 100% load on all cores is slim, this is one of those "going really fast in a brand new sports car" situations

madmattd - I didnt realize that 30 minutes would be sufficient to catch most problems, thanks!

 

Those are actually "low" temps.

 

Yeah, older i7 mobile processor can reach 97C (the 700-900 series), even desktop i7 with standard heatsink ranged from 76-92 with turbo boost on. Worst case, it just lower the multiplier to comfortable level.

 

Latops are not designed to either be stress tested or run @ 100% for extended periods of time. There is absolutley no justifiable reason to be running Prime 95 on your system. All you are going to do is put unnecessary wear and potentially break it.

Rather than run pointless benchmarks ( other than 3DMark ) why don't you go crazy and actually use the damn thing for it's intended purpose?

 

I think it's pretty reasonable to run the test for an hour or so but as you say 24hours + may not be the best for the system.

 

It does in my experience. Usually, if there is a stability issue, it usually comes up in the first half-dozen passes. I've done up to 8 hours at a go before, any errors were always by pass 6-7.

That said, it might just be my luck. But I've seen most people agree that 30-60 minutes is usually more than enough.

 

I wouldn't worry about it. If things get too hot the sucker will throttle itself. Do you know if it's still running turbo for the prime run or does yours kick down pretty quick? Mine will hit 95c pretty quick under heavy load (thanks to turbo), but after it kicks down to 2.2 gig it runs low 80's doing pretty heavy stuff (haven't primed it though).

 

My logic; I bought this beast to replace my desktop (i7/12gbram/ssd/dual screens etc) becasue I'm starting to hate sitting in one spot while working. My PC is a workhorse that I punish often. Computer problems cost me time and money. I want to be sure I'm not wasting my time with this laptop as it is my first Dell. Besides that's what warrantys are for

But I agree with you, this could result in damage - the thing is i rather the damage happen now (day 3) while im running benchmarks vs when I'm working a week for now. I was attempting to cause BSODs etc by all this.

 

Didn't monitor the turbo part sorry, but as far as temps go it did seem to "peak" and then throttle down just judging from the fan noise and temp values on the SpeedFan graph chart.