Shameful. Absolutely shameful.
My new R5 i9/1080 is hitting 100 degrees on core 0, 2, and 4 under light load - just downloading 30GB on WiFi. Obviously with that core pattern the heat sink is poorly mounted.
Crazy to see thermal throttling from just downloading over WiFi. I DO have a gigabit fiber connection but that is just a drop in the hat for a system like this. In no way should that tax the processor like this.
Cinebench score 1171, 131 FPS.
This was an exchange unit I was sent. Not sure how to proceed - if I should have Dell send a new heatsink, if I should repaste, or if I should reject this and wait another month for another replacement.
Sent from my iPhone using Tapatalk
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cruisin5268d Notebook Evangelist
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Are you within a replacement/refund window? If yes, take it, and the replacement may have been put better together at the factory. If not you may need to open it up and repaste it. -
Aristotelhs2060 Notebook Virtuoso
Last edited: Nov 1, 2018 -
equalizer2000 Notebook Consultant
@cruisin5268d - welcome to the club!I would first do some basic undervolting in ThrottleStop if you haven't already. See how much UV you can get to before it just crashes outright. If it crashes at 150 or below, probably not going to be a great CPU to OC past 4.3Ghz on six cores. But can't judge too much by that; just see what is the max clock you can get with undervolting to get an idea.
1171 CB out of the box sounds VERY promising though (as for how much undervolting and/or re-paste will add/help out). My first unit only got 800 out of the box! (then up to 1100ish with undervolt, then 1280-1320ish with liquid metal) My second one got 1100 (and now is always 1350+ with my lm and UV). But yeah, unless you re-paste and (I think necessary) switch to liquid metal, those fans will sure spool up no matter what you do. (mine would for just opening the browser, let alone watching a video; accessing SSD for copies would also get those fans going, but no longer, just did a 4 GB unzip from ones SSD to the other, no fans) With my re-paste with Phobya LM and the pads I replaced, I really need to be hammering the CPU or GPU to get them to come up. (I have to say again, as it stands now, my system is pretty damned delightful... 4.6 Ghz at -145.4mV has been stable for two days now of general, varied usage, from low CPU to gaming, no restarts... I just hope the liquid metal lasts for at least 6 months!)
Basically though I think you need to see the spread from your hottest core to the next one, how stable it is with undervolting in general, etc., to decide if this is the keeper and to go in on it for the re-paste, possible re-pad, etc. -
cruisin5268d likes this.
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Running 3.9GHz all cores aka equal clock speed as the $600 usd cheaper i7-8750H.
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equalizer2000 Notebook Consultant
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Last edited: Nov 1, 2018Ashtrix likes this. -
Here is why I am NOT willing to open up this laptop to repaste it. As you can see in this chart there is a 800 MHz throttle period, and at the time the CPU was only at around 85C! Which means something else is causing the 800 MHz drop and in my experience it is the GPU VRMs. I have no way to improve on the VRMs cooling, so tomorrow I am going to call it in. It is very hard to reproduce though, you have to be in the game for a long time before it happens. For certain this did not happen when I first got the laptop - maybe some thermal paste / pad has already deteriorated ?
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equalizer2000 Notebook Consultant
I can't really think of any other reason why your VRMs are running so hot and causing such an issue. -
propeldragon Notebook Evangelist
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equalizer2000 Notebook Consultant
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propeldragon Notebook Evangelist
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Aristotelhs2060 Notebook Virtuoso
Those 800mhz drops can happen even during idle when GPU is minimally used. I insist it is related to latest bios versions changes and not temps. I would recommend comparing your bios versions to others before looking at pads or something else. Dell has made many bad thermal behaviour changes in latest bios versions to avoid recall of R5s. And yes I believe those changes are actually causing more problems (e.g. frequency drops) rather than sorting out things
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equalizer2000 Notebook Consultant
I also did a 3.9 Ghz max clock test when I had disabled stuff, and I got a 1240. So I am pretty sure whatever other services are keeping my CPU busy are costing me the last +100 score that you are getting (comparing 3.9 to 3.9). I can see why it didn't make sense from your side then. I need some stuff to run though, I can't just disable it all.
One other thing - I doubt this has anything to do with it, but you're on BIOS v1.5, right? Did you check and pick an OC from the CPU Performance mode in the BIOS? I still think if that's not chosen, it might use a different power limit for the system, including the VRMs. TS will overwrite the exact settings, but I wonder if having that enabled in BIOS during the boot does anything. -
I discovered yesterday that the bios on the R5 can be downgraded without issues. I went from 1.5.0 back to 1.0.6 and back to 1.5.0 Again via 1.1.6 and 1.2.0.
1.5.0 stil seems like the best bios up till now, in 1.0.6 and 1.1.6 i was not able to change my powerlimits, so i suspect something else is going on. -
Aristotelhs2060 Notebook Virtuoso
I have never tried undervolting the GPU but MSI afterburner has a strange/confusing way to UV. But looks like the only option
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Aristotelhs2060 Notebook Virtuoso
*OFFICIAL* Alienware 17 R5 Owner's Lounge
Discussion in '2015+ Alienware 13 / 15 / 17' started by alexnvidia, Apr 11, 2018.